Treatment Tracker

The Doctors and Services in Medicare Part B

How This Provider Compares

This Provider

Avg in State & Specialty

Providers in this state and specialty were reimbursed, on average, $1,265 per patient in 2014.
They performed about 84 services per patient. Here’s how this provider compares.

Number of
Patients
462
Rank: 29th
out of 88 providers in this state & specialty
Services
Performed
127,674
Rank: 10th
out of 88 providers in this state & specialty
Avg Services
Per Patient
276.4 This Provider is in the top 10%
Avg 84.4
Total Paid
by Medicare
$2.35M
Rank: 5th
out of 88 providers in this state & specialty
Avg Paid
Per Patient
$5,091 This Provider is in the top 10%
Avg $1,265

Note: About 84% of this provider’s Medicare payments were for drugs administered in his office.
This is intended to reimburse the provider for purchasing the drugs, plus an additional percentage for overhead.

How This Provider’s Patients Compare

Doctors often say their patients are sicker or more complex than those of their peers. The measure displayed below, used by the Centers for Medicare and Medicaid Services, takes into account patients’ characteristics to estimate whether they are expected to have above-average Medicare spending. It considers patients’ age, sex, diagnoses from the past year and other factors. This provider’s score below takes into account all of his Part B patients.

Who Patients See Before and After This Provider

Providers often refer their patients to a small network of other providers and organizations. Here’s who patients saw the most within 30 days before or after this provider in 2014.

Patients saw before

GREGORY PARKER M.D.

Patients saw after

This Provider's Services

This provider performed 125 different services in 2014

All Services

Show Only:

Drug Services
Medical Services
CATEGORY
Description of Service
Times Performed (or Units) This Service's Rank Patients Unique Visits
Per Patient
Billed to Medicare Payments from Medicare
drug
TEMPORARY CODES

Injection, ferumoxytol, for treatment of iron deficiency ... +

Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) ×

Service Code: Q0138
Performed in an office
19,380
times performed,
15% of his services

1st Alert 634c0670e9b0f4e97fc9f1e1f07be123ffeab88a9de548d41da5a24a8f6054bd

most performed service for this provider 5 or fewer providers in this specialty in OK perform this service

16
patients got this service, 3% of his patients
2.4
average number of visits a patient made for this service
$38,760an average of $2 per time performed $10,853
an average of $1 per time performed
drug
CHEMOTHERAPY DRUGS

Injection, docetaxel, 1 mg

Service Code: J9171
Performed in an office
4,947
times performed,
4% of his services

2nd 13th

most performed service for this provider most performed service in this state & specialty

12
patients got this service, 3% of his patients
5.3
average number of visits a patient made for this service
(Peers: 2.5)
$69,258an average of $14 per time performed $16,770
an average of $3 per time performed
drug
DRUGS

Injection, dexamethasone sodium phosphate, 1mg

Service Code: J1100
Performed in an office
3,820
times performed,
3% of his services

3rd 3rd

most performed service for this provider most performed service in this state & specialty

47
patients got this service, 10% of his patients
8.1
average number of visits a patient made for this service
(Peers: 3.5)
$3,820an average of $1 per time performed $382
an average of $0 per time performed
drug
DRUGS

Injection, palonosetron hcl, 25 mcg

Service Code: J2469
Performed in an office
3,590
times performed,
3% of his services

4th 9th

most performed service for this provider most performed service in this state & specialty

44
patients got this service, 10% of his patients
8.2
average number of visits a patient made for this service
(Peers: 3.3)
$136,420an average of $38 per time performed $54,604
an average of $15 per time performed
medical
PATHOLOGY AND LABORATORY

Complete blood cell count (red cells, white blood cell, p... +

Complete blood cell count (red cells, white blood cell, platelets), automated test ×

Service Code: 85025
Performed in an office
1,512
times performed,
1% of his services

5th 14th

most performed service for this provider most performed service in this state & specialty

337
patients got this service, 73% of his patients
4.5
average number of visits a patient made for this service
(Peers: 3.2)
$33,264an average of $22 per time performed $15,574
an average of $10 per time performed
medical
CARDIOVASCULAR SYSTEM

Insertion of needle into vein for collection of blood sample +

Insertion of needle into vein for collection of blood sample ×

Service Code: 36415
Performed in an office
1,347
times performed,
1% of his services

6th 16th

most performed service for this provider most performed service in this state & specialty

323
patients got this service, 70% of his patients
4.2
average number of visits a patient made for this service
(Peers: 3.2)
$8,082an average of $6 per time performed $3,933
an average of $3 per time performed
drug
DRUGS

Injection, ondansetron hydrochloride, per 1 mg

Service Code: J2405
Performed in an office
1,224
times performed,
0.96% of his services

7th 18th

most performed service for this provider most performed service in this state & specialty

21
patients got this service, 5% of his patients
4
average number of visits a patient made for this service
(Peers: 3.3)
$1,224an average of $1 per time performed $86
an average of $0 per time performed
drug
CHEMOTHERAPY DRUGS

Injection, rituximab, 100 mg

Service Code: J9310
Performed in an office
969
times performed,
0.76% of his services

8th 40th

most performed service for this provider most performed service in this state & specialty

20
patients got this service, 4% of his patients
6.7
average number of visits a patient made for this service
(Peers: 2.4)
$1,279,080an average of $1,320 per time performed $531,022
an average of $548 per time performed
medical
MEDICINE

Infusion into a vein for therapy prevention or diagnosis ... +

Infusion into a vein for therapy prevention or diagnosis additional sequential infusion up to 1 hour ×

Service Code: 96367
Performed in an office
905
times performed,
0.71% of his services

9th 23rd

most performed service for this provider most performed service in this state & specialty

68
patients got this service, 15% of his patients
8.4
average number of visits a patient made for this service
(Peers: 3.1)
$56,110an average of $62 per time performed $19,077
an average of $21 per time performed
medical
EVALUATION AND MANAGEMENT

Established patient office or other outpatient, visit typ... +

Established patient office or other outpatient, visit typically 25 minutes ×

Service Code: 99214
Performed in an office
892
times performed,
0.7% of his services

10th 17th

most performed service for this provider most performed service in this state & specialty

293
patients got this service, 63% of his patients
3
average number of visits a patient made for this service
(Peers: 2.7)
$175,724an average of $197 per time performed $64,661
an average of $72 per time performed
medical
EVALUATION AND MANAGEMENT

Established patient office or other outpatient visit, typ... +

Established patient office or other outpatient visit, typically 15 minutes ×

Service Code: 99213
Performed in an office
525
times performed,
0.41% of his services

11th 20th

most performed service for this provider most performed service in this state & specialty

273
patients got this service, 59% of his patients
1.9
average number of visits a patient made for this service
(Peers: 2)
$67,200an average of $128 per time performed $25,489
an average of $49 per time performed
medical
MEDICINE

Infusion of chemotherapy into a vein up to 1 hour

Service Code: 96413
Performed in an office
507
times performed,
0.4% of his services

12th 26th

most performed service for this provider most performed service in this state & specialty

64
patients got this service, 14% of his patients
7.9
average number of visits a patient made for this service
(Peers: 3.4)
$134,355an average of $265 per time performed $46,259
an average of $91 per time performed
drug
CHEMOTHERAPY DRUGS

Injection, carboplatin, 50 mg

Service Code: J9045
Performed in an office
449
times performed,
0.35% of his services

13th 28th

most performed service for this provider most performed service in this state & specialty

16
patients got this service, 3% of his patients
5.3
average number of visits a patient made for this service
(Peers: 2.3)
$3,143an average of $7 per time performed $1,199
an average of $3 per time performed
medical
PATHOLOGY AND LABORATORY

Blood test, comprehensive group of blood chemicals

Service Code: 80053
Performed in an office
442
times performed,
0.35% of his services

14th 22nd

most performed service for this provider most performed service in this state & specialty

170
patients got this service, 37% of his patients
2.6
average number of visits a patient made for this service
(Peers: 2.1)
$13,260an average of $30 per time performed $6,166
an average of $14 per time performed
medical
MEDICINE

Infusion into a vein for therapy, prevention, or diagnosi... +

Infusion into a vein for therapy, prevention, or diagnosis, concurrent with another infusion ×

Service Code: 96368
Performed in an office
356
times performed,
0.28% of his services

15th 65th

most performed service for this provider most performed service in this state & specialty

44
patients got this service, 10% of his patients
8.1
average number of visits a patient made for this service
(Peers: 5)
$13,172an average of $37 per time performed $5,144
an average of $14 per time performed
medical
MEDICINE

Infusion of different chemotherapy drug or substance into... +

Infusion of different chemotherapy drug or substance into a vein up to 1 hour ×

Service Code: 96417
Performed in an office
236
times performed,
0.18% of his services

16th 44th

most performed service for this provider most performed service in this state & specialty

32
patients got this service, 7% of his patients
6.5
average number of visits a patient made for this service
(Peers: 2.8)
$31,152an average of $132 per time performed $10,044
an average of $43 per time performed
medical
MEDICINE

Infusion of chemotherapy into a vein

Service Code: 96415
Performed in an office
221
times performed,
0.17% of his services

17th 38th

most performed service for this provider most performed service in this state & specialty

35
patients got this service, 8% of his patients
5.4
average number of visits a patient made for this service
(Peers: 2.8)
$12,818an average of $58 per time performed $4,318
an average of $20 per time performed
drug
CHEMOTHERAPY DRUGS

Injection, paclitaxel, 30 mg

Service Code: J9265
Performed in an office
216
times performed,
0.17% of his services

18th 33rd

most performed service for this provider most performed service in this state & specialty

11
patients got this service, 2% of his patients
5.1
average number of visits a patient made for this service
(Peers: 2.3)
$2,808an average of $13 per time performed $734
an average of $3 per time performed
medical
CARDIOVASCULAR SYSTEM

Insertion of needle into vein, patient 3 years or older

Service Code: 36410
Performed in an office
208
times performed,
0.16% of his services

19th Alert 634c0670e9b0f4e97fc9f1e1f07be123ffeab88a9de548d41da5a24a8f6054bd

most performed service for this provider 5 or fewer providers in this specialty in OK perform this service

48
patients got this service, 10% of his patients
4.3
average number of visits a patient made for this service
$6,656an average of $32 per time performed $2,342
an average of $11 per time performed
medical
MEDICINE

Non-hormonal anti-neoplastic chemotherapy beneath the ski... +

Non-hormonal anti-neoplastic chemotherapy beneath the skin or into muscle ×

Service Code: 96401
Performed in an office
198
times performed,
0.16% of his services

20th 64th

most performed service for this provider most performed service in this state & specialty

14
patients got this service, 3% of his patients
14.1
average number of visits a patient made for this service
(Peers: 4.1)
$25,344an average of $128 per time performed $9,922
an average of $50 per time performed
medical
MEDICINE

Injection beneath the skin or into muscle for therapy, di... +

Injection beneath the skin or into muscle for therapy, diagnosis, or prevention ×

Service Code: 96372
Performed in an office
189
times performed,
0.15% of his services

21st 32nd

most performed service for this provider most performed service in this state & specialty

37
patients got this service, 8% of his patients
5.1
average number of visits a patient made for this service
(Peers: 3.8)
$7,749an average of $41 per time performed $3,313
an average of $18 per time performed
drug
DRUGS

Injection, diphenhydramine hcl, up to 50 mg

Service Code: J1200
Performed in an office
181
times performed,
0.14% of his services

22nd 47th

most performed service for this provider most performed service in this state & specialty

31
patients got this service, 7% of his patients
5.8
average number of visits a patient made for this service
(Peers: 2.7)
$543an average of $3 per time performed $83
an average of $0 per time performed
drug
DRUGS

Injection, hydrocortisone sodium succinate, up to 100 mg +

Injection, hydrocortisone sodium succinate, up to 100 mg ×

Service Code: J1720
Performed in an office
178
times performed,
0.14% of his services

23rd Alert 634c0670e9b0f4e97fc9f1e1f07be123ffeab88a9de548d41da5a24a8f6054bd

most performed service for this provider 5 or fewer providers in this specialty in OK perform this service

30
patients got this service, 6% of his patients
5.9
average number of visits a patient made for this service
$1,602an average of $9 per time performed $744
an average of $4 per time performed
medical
RADIOLOGY

Ct scan chest with contrast

Service Code: 71260
Performed in an office
145
times performed,
0.11% of his services

24th 87th

most performed service for this provider most performed service in this state & specialty

81
patients got this service, 18% of his patients
1.8
average number of visits a patient made for this service
(Peers: 1.6)
$125,570an average of $866 per time performed $12,659
an average of $87 per time performed
medical
MEDICINE

Infusion into a vein for therapy, prevention, or diagnosi... +

Infusion into a vein for therapy, prevention, or diagnosis up to 1 hour ×

Service Code: 96365
Performed in an office
100
times performed,
0.08% of his services

25th 61st

most performed service for this provider most performed service in this state & specialty

31
patients got this service, 7% of his patients
3.2
average number of visits a patient made for this service
(Peers: 2)
$12,600an average of $126 per time performed $4,686
an average of $47 per time performed
medical
RADIOLOGY

Ct scan of abdomen and pelvis with contrast

Service Code: 74177
Performed in an office
99
times performed,
0.08% of his services

26th 130th

most performed service for this provider most performed service in this state & specialty

68
patients got this service, 15% of his patients
1.5
average number of visits a patient made for this service
(Peers: 1.3)
$79,200an average of $800 per time performed $14,735
an average of $149 per time performed
medical
EVALUATION AND MANAGEMENT

Subsequent hospital inpatient care, typically 15 minutes ... +

Subsequent hospital inpatient care, typically 15 minutes per day ×

Service Code: 99231
Performed in a facility
77
times performed,
0.06% of his services

27th 73rd

most performed service for this provider most performed service in this state & specialty

35
patients got this service, 8% of his patients
2.2
average number of visits a patient made for this service
(Peers: 2.1)
$5,852an average of $76 per time performed $2,211
an average of $29 per time performed
medical
MEDICINE

Injection of different drug or substance into a vein for ... +

Injection of different drug or substance into a vein for therapy, diagnosis, or prevention ×

Service Code: 96375
Performed in an office
76
times performed,
0.06% of his services

28th 29th

most performed service for this provider most performed service in this state & specialty

18
patients got this service, 4% of his patients
3.8
average number of visits a patient made for this service
(Peers: 4.4)
$3,192an average of $42 per time performed $1,159
an average of $15 per time performed
medical
ADMINISTRATIVE

Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, ... +

Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries ×

Service Code: A9552
Performed in an office
70
times performed,
0.05% of his services

29th 92nd

most performed service for this provider most performed service in this state & specialty

59
patients got this service, 13% of his patients
1.2
average number of visits a patient made for this service
(Peers: 1.1)
$35,000an average of $500 per time performed $9,547
an average of $136 per time performed
medical
RADIOLOGY

Nuclear medicine study with ct imaging skull base to mid-... +

Nuclear medicine study with ct imaging skull base to mid-thigh ×

Service Code: 78815
Performed in an office
62
times performed,
0.05% of his services

30th 95th

most performed service for this provider most performed service in this state & specialty

53
patients got this service, 11% of his patients
1.2
average number of visits a patient made for this service
(Peers: 1.1)
$310,000an average of $5,000 per time performed $54,403
an average of $877 per time performed
medical
EVALUATION AND MANAGEMENT

Subsequent hospital inpatient care, typically 25 minutes ... +

Subsequent hospital inpatient care, typically 25 minutes per day ×

Service Code: 99232
Performed in a facility
57
times performed,
0.04% of his services

31st 31st

most performed service for this provider most performed service in this state & specialty

14
patients got this service, 3% of his patients
4.1
average number of visits a patient made for this service
(Peers: 3)
$7,752an average of $136 per time performed $2,941
an average of $52 per time performed
medical
RADIOLOGY

Ct scan chest

Service Code: 71250
Performed in an office
55
times performed,
0.04% of his services

32nd Alert 634c0670e9b0f4e97fc9f1e1f07be123ffeab88a9de548d41da5a24a8f6054bd

most performed service for this provider 5 or fewer providers in this specialty in OK perform this service

40
patients got this service, 9% of his patients
1.4
average number of visits a patient made for this service
$39,380an average of $716 per time performed $4,332
an average of $79 per time performed
medical
MEDICINE

Irrigation of implanted venous access drug delivery device +

Irrigation of implanted venous access drug delivery device ×

Service Code: 96523
Performed in an office
49
times performed,
0.04% of his services

33rd 56th

most performed service for this provider most performed service in this state & specialty

19
patients got this service, 4% of his patients
2.6
average number of visits a patient made for this service
(Peers: 2.3)
$2,254an average of $46 per time performed $751
an average of $15 per time performed
medical
EVALUATION AND MANAGEMENT

New patient office or other outpatient visit, typically 6... +

New patient office or other outpatient visit, typically 60 minutes ×

Service Code: 99205
Performed in an office
45
times performed,
0.04% of his services

34th 57th

most performed service for this provider most performed service in this state & specialty

45
patients got this service, 10% of his patients
1
average number of visits a patient made for this service
(Peers: 1)
$16,785an average of $373 per time performed $6,494
an average of $144 per time performed
medical
EVALUATION AND MANAGEMENT

Established patient office or other outpatient visit, typ... +

Established patient office or other outpatient visit, typically 10 minutes ×

Service Code: 99212
Performed in an office
45
times performed,
0.04% of his services

35th 107th

most performed service for this provider most performed service in this state & specialty

35
patients got this service, 8% of his patients
1.3
average number of visits a patient made for this service
(Peers: 1.2)
$3,420an average of $76 per time performed $1,308
an average of $29 per time performed
medical
RADIOLOGY

Ct scan abdomen with contrast

Service Code: 74160
Performed in an office
42
times performed,
0.03% of his services

36th Alert 634c0670e9b0f4e97fc9f1e1f07be123ffeab88a9de548d41da5a24a8f6054bd

most performed service for this provider 5 or fewer providers in this specialty in OK perform this service

32
patients got this service, 7% of his patients
1.3
average number of visits a patient made for this service
$38,808an average of $924 per time performed $3,707
an average of $88 per time performed
medical
EVALUATION AND MANAGEMENT

Initial hospital inpatient care, typically 30 minutes per... +

Initial hospital inpatient care, typically 30 minutes per day ×

Service Code: 99221
Performed in a facility
40
times performed,
0.03% of his services

37th Alert 634c0670e9b0f4e97fc9f1e1f07be123ffeab88a9de548d41da5a24a8f6054bd

most performed service for this provider 5 or fewer providers in this specialty in OK perform this service

36
patients got this service, 8% of his patients
1.1
average number of visits a patient made for this service
$7,520an average of $188 per time performed $2,938
an average of $73 per time performed
medical
RADIOLOGY

Ct scan of abdomen and pelvis

Service Code: 74176
Performed in an office
29
times performed,
0.02% of his services

38th Alert 634c0670e9b0f4e97fc9f1e1f07be123ffeab88a9de548d41da5a24a8f6054bd

most performed service for this provider 5 or fewer providers in this specialty in OK perform this service

22
patients got this service, 5% of his patients
1.3
average number of visits a patient made for this service
$17,400an average of $600 per time performed $1,960
an average of $68 per time performed
medical
EVALUATION AND MANAGEMENT

New patient office or other outpatient visit, typically 3... +

New patient office or other outpatient visit, typically 30 minutes ×

Service Code: 99203
Performed in an office
28
times performed,
0.02% of his services

39th Alert 634c0670e9b0f4e97fc9f1e1f07be123ffeab88a9de548d41da5a24a8f6054bd

most performed service for this provider 5 or fewer providers in this specialty in OK perform this service

28
patients got this service, 6% of his patients
1
average number of visits a patient made for this service
$5,348an average of $191 per time performed $2,184
an average of $78 per time performed
medical
MEDICINE

Hydration infusion into a vein 31 minutes to 1 hour

Service Code: 96360
Performed in an office
27
times performed,
0.02% of his services

40th 104th

most performed service for this provider most performed service in this state & specialty

13
patients got this service, 3% of his patients
2.1
average number of visits a patient made for this service
(Peers: 2.3)
$2,754an average of $102 per time performed $783
an average of $29 per time performed
drug
DRUGS

Infusion, normal saline solution , 1000 cc

Service Code: J7030
Performed in an office
27
times performed,
0.02% of his services

41st 82nd

most performed service for this provider most performed service in this state & specialty

13
patients got this service, 3% of his patients
2
average number of visits a patient made for this service
(Peers: 1.7)
$81an average of $3 per time performed $24
an average of $1 per time performed
medical
EVALUATION AND MANAGEMENT

Initial hospital inpatient care, typically 70 minutes per... +

Initial hospital inpatient care, typically 70 minutes per day ×

Service Code: 99223
Performed in a facility
20
times performed,
0.02% of his services

42nd 67th

most performed service for this provider most performed service in this state & specialty

19
patients got this service, 4% of his patients
1.1
average number of visits a patient made for this service
(Peers: 1.1)
$7,560an average of $378 per time performed $3,049
an average of $152 per time performed
medical
EVALUATION AND MANAGEMENT

New patient office or other outpatient visit, typically 4... +

New patient office or other outpatient visit, typically 45 minutes ×

Service Code: 99204
Performed in an office
19
times performed,
0.01% of his services

43rd 80th

most performed service for this provider most performed service in this state & specialty

19
patients got this service, 4% of his patients
1
average number of visits a patient made for this service
(Peers: 1)
$5,643an average of $297 per time performed $2,129
an average of $112 per time performed
medical
PROCEDURES

Administration of influenza virus vaccine

Service Code: G0008
Performed in an office
17
times performed,
0.01% of his services

44th 94th

most performed service for this provider most performed service in this state & specialty

17
patients got this service, 4% of his patients
1
average number of visits a patient made for this service
(Peers: 1)
$646an average of $38 per time performed $374
an average of $22 per time performed
drug
TEMPORARY CODES

Influenza virus vaccine, split virus, when administered t... +

Influenza virus vaccine, split virus, when administered to individuals 3 years of age and older, for intramuscular use (fluvirin) ×

Service Code: Q2037
Performed in an office
17
times performed,
0.01% of his services

45th 114th

most performed service for this provider most performed service in this state & specialty

17
patients got this service, 4% of his patients
1
average number of visits a patient made for this service
(Peers: 1)
$493an average of $29 per time performed $256
an average of $15 per time performed
medical
HEMIC AND LYMPHATIC SYSTEMS

Bone marrow aspiration

Service Code: 38220
Performed in an office
13
times performed,
0.01% of his services

46th Alert 634c0670e9b0f4e97fc9f1e1f07be123ffeab88a9de548d41da5a24a8f6054bd

most performed service for this provider 5 or fewer providers in this specialty in OK perform this service

12
patients got this service, 3% of his patients
1.1
average number of visits a patient made for this service
$3,614an average of $278 per time performed $681
an average of $52 per time performed
medical
HEMIC AND LYMPHATIC SYSTEMS

Needle or trocar bone marrow biopsy

Service Code: 38221
Performed in an office
13
times performed,
0.01% of his services

47th 139th

most performed service for this provider most performed service in this state & specialty

12
patients got this service, 3% of his patients
1.1
average number of visits a patient made for this service
(Peers: 1.1)
$3,991an average of $307 per time performed $1,537
an average of $118 per time performed

Office Visits

Medicare reimburses office visits using a five-point scale, with five being the most intensive and costly. The chart below shows what percentage of this provider’s office visits were reimbursed at each level. A higher than average proportion of costly visits is not necessarily an indication of a problem, but it may be worth asking about.

Hover over each slice to see percentage breakdown.

Gregory A Parker
Average for Hematology & Oncology Providers in Oklahoma

Notes: Medicare redacted this data for any services provided to fewer than 11 patients. The contact information listed above is the most current we have for this provider. The services listed on this page may have been delivered at a previous address or as part of a different practice.

Incorrect Info? If you are a provider and you believe your address is incorrect, check the listing you created on the National Provider Identifier registry. If you change your listing, send a note to checkup@propublica.org and we will update your information. If you have other questions about this data, send a note to checkup@propublica.org. Here's a link to Medicare's data on this provider.

Sources: Centers for Medicare and Medicaid Services, National Plan and Provider Enumeration System, American Medical Association

Services that begin with a letter come from CMS. All other codes and descriptions of the medical procedures are from the Current Procedural Terminology (CPT®) code set, copyright 2013 American Medical Association. All rights reserved. Where practical, AMA’s consumer friendly translation of the CPT descriptor was used. ProPublica has received permission from the AMA to use these codes on this site.

Read our methodology.