Treatment Tracker
The Doctors and Services in Medicare Part B
This database was last updated in December 2017. It should only be used as a historical snapshot. More recent data is available via the Centers for Medicare and Medicaid Services’ lookup tool.
DEREK BARKER M.D.
COLUMBIA, SC, 29201
How This Provider Compares
This Provider
Avg in State & Specialty
Providers in this state and specialty were reimbursed, on average, $334 per patient in 2015.
They performed about 4 services per patient. Here’s how this provider compares.
Number of
Patients
Services
Performed
Avg Services
Per Patient
Total Paid
by Medicare
Avg Paid
Per Patient
Note: About 27% 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.
This Provider's Services
This provider performed 55 different services in 2015
(30 were redacted as they were performed on less than 11 patients)
Show Only:
CATEGORYDescription of Service |
Times Performed (or Units) | This Service's Rank | Patients | Unique Visits Per Patient |
Billed to Medicare | Payments from Medicare |
|---|---|---|---|---|---|---|
MEDICINEService Code: 92134Performed in an office |
2,355 times performed, 21% of his services |
1st 3rd most performed service for this provider most performed service in this state & specialty |
765 patients got this service, 64% of his patients |
3.1 average number of visits a patient made for this service (Peers: 2.1) |
$412,125.00an average of $175.00 per time performed |
$71,121.00 an average of $30.20 per time performed |
EYEService Code: 67028Performed in an office |
1,936 times performed, 17% of his services |
2nd 4th most performed service for this provider most performed service in this state & specialty |
345 patients got this service, 29% of his patients |
5.6 average number of visits a patient made for this service (Peers: 4.9) |
$1,916,640.00an average of $990.00 per time performed |
$141,947.52 an average of $73.32 per time performed |
MEDICINEEye and medical examination for diagnosis and treatment, ... + Eye and medical examination for diagnosis and treatment, established patient × Service Code: 92012Performed in an office |
1,876 times performed, 17% of his services |
3rd 2nd most performed service for this provider most performed service in this state & specialty |
742 patients got this service, 62% of his patients |
2.5 average number of visits a patient made for this service (Peers: 1.6) |
$159,460.00an average of $85.00 per time performed |
$103,255.04 an average of $55.04 per time performed |
DRUGSService Code: J3590Performed in an office |
1,766 times performed, 16% of his services |
4th 9th most performed service for this provider most performed service in this state & specialty |
335 patients got this service, 28% of his patients |
5.2 average number of visits a patient made for this service (Peers: 4.4) |
$142,745.78an average of $80.83 per time performed |
$93,721.62 an average of $53.07 per time performed |
DRUGSInjection, ranibizumab, 0.1 mg Service Code: J2778Performed in an office |
692 times performed, 6% of his services |
5th 12th most performed service for this provider most performed service in this state & specialty |
27 patients got this service, 2% of his patients |
5.7 average number of visits a patient made for this service (Peers: 4.9) |
$346,000.00an average of $500.00 per time performed |
$213,668.84 an average of $308.77 per time performed |
MEDICINEEye and medical examination for diagnosis and treatment, ... + Eye and medical examination for diagnosis and treatment, established patient, 1 or more visits × Service Code: 92014Performed in an office |
587 times performed, 5% of his services |
6th 1st most performed service for this provider most performed service in this state & specialty |
561 patients got this service, 47% of his patients |
1 average number of visits a patient made for this service (Peers: 1.1) |
$73,375.00an average of $125.00 per time performed |
$49,818.69 an average of $84.87 per time performed |
MEDICINEExamination of retinal blood vessels by ophthalmoscope Service Code: 92235Performed in an office |
408 times performed, 4% of his services |
7th 22nd most performed service for this provider most performed service in this state & specialty |
215 patients got this service, 18% of his patients |
1.1 average number of visits a patient made for this service (Peers: 1.2) |
$81,600.00an average of $200.00 per time performed |
$30,000.24 an average of $73.53 per time performed |
EVALUATION AND MANAGEMENTEstablished patient office or other outpatient visit, typ... + Established patient office or other outpatient visit, typically 15 minutes × Service Code: 99213Performed in an office |
273 times performed, 2% of his services |
8th 10th most performed service for this provider most performed service in this state & specialty |
208 patients got this service, 17% of his patients |
1.3 average number of visits a patient made for this service (Peers: 1.3) |
$20,202.00an average of $74.00 per time performed |
$12,779.13 an average of $46.81 per time performed |
EVALUATION AND MANAGEMENTEstablished patient office or other outpatient, visit typ... + Established patient office or other outpatient, visit typically 25 minutes × Service Code: 99214Performed in an office |
203 times performed, 2% of his services |
9th 16th most performed service for this provider most performed service in this state & specialty |
190 patients got this service, 16% of his patients |
1.1 average number of visits a patient made for this service (Peers: 1.2) |
$23,548.00an average of $116.00 per time performed |
$14,912.38 an average of $73.46 per time performed |
MEDICINEService Code: 92250Performed in an office |
177 times performed, 2% of his services |
10th 15th most performed service for this provider most performed service in this state & specialty |
169 patients got this service, 14% of his patients |
1 average number of visits a patient made for this service (Peers: 1.1) |
$20,001.00an average of $113.00 per time performed |
$8,014.56 an average of $45.28 per time performed |
DRUGSInjection, triamcinolone acetonide, not otherwise specif... + Injection, triamcinolone acetonide, not otherwise specified, 10 mg × Service Code: J3301Performed in an office |
112 times performed, 1% of his services |
11th 47th most performed service for this provider most performed service in this state & specialty |
20 patients got this service, 2% of his patients |
1.9 average number of visits a patient made for this service (Peers: 1.6) |
$6,659.52an average of $59.46 per time performed |
$156.80 an average of $1.40 per time performed |
EYELaser destruction of leaking retinal blood vessels, 1 or ... + Laser destruction of leaking retinal blood vessels, 1 or more sessions × Service Code: 67228Performed in an office |
102 times performed, 0.92% of his services |
12th 54th most performed service for this provider most performed service in this state & specialty |
63 patients got this service, 5% of his patients |
1.6 average number of visits a patient made for this service (Peers: 1.3) |
$142,800.00an average of $1,400.00 per time performed |
$74,552.82 an average of $730.91 per time performed |
MEDICINEExamination of eye using an endoscope Service Code: 92240Performed in an office |
67 times performed, 0.6% of his services |
13th
most performed service for this provider 5 or fewer providers in this specialty in SC perform this service |
43 patients got this service, 4% of his patients |
1 average number of visits a patient made for this service |
$38,190.00an average of $570.00 per time performed |
$11,256.00 an average of $168.00 per time performed |
EYELaser destruction of retinal growth, 1 or more sessions Service Code: 67210Performed in an office |
63 times performed, 0.57% of his services |
14th 45th most performed service for this provider most performed service in this state & specialty |
46 patients got this service, 4% of his patients |
1.4 average number of visits a patient made for this service (Peers: 1.4) |
$76,545.00an average of $1,215.00 per time performed |
$23,473.80 an average of $372.60 per time performed |
MEDICINEEye and medical examination for diagnosis and treatment, ... + Eye and medical examination for diagnosis and treatment, new patient, 1 or more visits × Service Code: 92004Performed in an office |
57 times performed, 0.51% of his services |
15th 11th most performed service for this provider most performed service in this state & specialty |
57 patients got this service, 5% of his patients |
1 average number of visits a patient made for this service (Peers: 1) |
$9,405.00an average of $165.00 per time performed |
$5,290.17 an average of $92.81 per time performed |
EVALUATION AND MANAGEMENTEstablished patient office or other outpatient visit, typ... + Established patient office or other outpatient visit, typically 10 minutes × Service Code: 99212Performed in an office |
44 times performed, 0.4% of his services |
16th 19th most performed service for this provider most performed service in this state & specialty |
38 patients got this service, 3% of his patients |
1.2 average number of visits a patient made for this service (Peers: 1.4) |
$2,332.00an average of $53.00 per time performed |
$1,331.00 an average of $30.25 per time performed |
EYERemoval of membrane from the retina, pars plana approach + Removal of membrane from the retina, pars plana approach × Service Code: 67042Performed in a facility |
43 times performed, 0.39% of his services |
17th 66th most performed service for this provider most performed service in this state & specialty |
40 patients got this service, 3% of his patients |
1.1 average number of visits a patient made for this service (Peers: 1.1) |
$193,500.00an average of $4,500.00 per time performed |
$35,777.72 an average of $832.04 per time performed |
RADIOLOGYUltrasound of eye disease, growth, or structure Service Code: 76512Performed in an office |
39 times performed, 0.35% of his services |
18th 51st most performed service for this provider most performed service in this state & specialty |
23 patients got this service, 2% of his patients |
1.7 average number of visits a patient made for this service (Peers: 1.3) |
$9,516.00an average of $244.00 per time performed |
$2,614.95 an average of $67.05 per time performed |
EYEInjection of medication or substance into membrane coveri... + Injection of medication or substance into membrane covering eyeball × Service Code: 67515Performed in an office |
23 times performed, 0.21% of his services |
19th 79th most performed service for this provider most performed service in this state & specialty |
15 patients got this service, 1% of his patients |
1.5 average number of visits a patient made for this service (Peers: 1.3) |
$4,439.00an average of $193.00 per time performed |
$1,594.82 an average of $69.34 per time performed |
MEDICINEExamination of cornea and iris using lens device and slit... + Examination of cornea and iris using lens device and slit lamp × Service Code: 92020Performed in an office |
17 times performed, 0.15% of his services |
20th 24th most performed service for this provider most performed service in this state & specialty |
13 patients got this service, 1% of his patients |
1.3 average number of visits a patient made for this service (Peers: 1) |
$782.00an average of $46.00 per time performed |
$313.65 an average of $18.45 per time performed |
MEDICINEMeasurement of field of vision during daylight conditions + Measurement of field of vision during daylight conditions × Service Code: 92083Performed in an office |
16 times performed, 0.14% of his services |
21st 8th most performed service for this provider most performed service in this state & specialty |
11 patients got this service, 0.92% of his patients |
1.5 average number of visits a patient made for this service (Peers: 1.1) |
$1,680.00an average of $105.00 per time performed |
$721.28 an average of $45.08 per time performed |
EYERepair of detached retina and drainage of eye fluid betwe... + Repair of detached retina and drainage of eye fluid between lens and retina × Service Code: 67108Performed in a facility |
13 times performed, 0.12% of his services |
22nd 93rd most performed service for this provider most performed service in this state & specialty |
13 patients got this service, 1% of his patients |
1 average number of visits a patient made for this service (Peers: 1) |
$47,970.00an average of $3,690.00 per time performed |
$15,241.72 an average of $1,172.44 per time performed |
EYEPreventive retinal detachment treatment by heat or laser,... + Preventive retinal detachment treatment by heat or laser, 1 or more sessions × Service Code: 67145Performed in an office |
13 times performed, 0.12% of his services |
23rd 78th most performed service for this provider most performed service in this state & specialty |
13 patients got this service, 1% of his patients |
1 average number of visits a patient made for this service (Peers: 1.1) |
$15,262.00an average of $1,174.00 per time performed |
$5,005.91 an average of $385.07 per time performed |
EYERemoval of eye fluid (vitreous) between the lens and retina + Removal of eye fluid (vitreous) between the lens and retina × Service Code: 67036Performed in a facility |
13 times performed, 0.12% of his services |
24th 84th most performed service for this provider most performed service in this state & specialty |
12 patients got this service, 1% of his patients |
1.1 average number of visits a patient made for this service (Peers: 1.2) |
$40,950.00an average of $3,150.00 per time performed |
$8,508.37 an average of $654.49 per time performed |
MEDICINEMeasurement of corneal curvature and depth of eye Service Code: 92136Performed in an office |
11 times performed, 0.1% of his services |
25th 6th most performed service for this provider most performed service in this state & specialty |
11 patients got this service, 0.92% of his patients |
1 average number of visits a patient made for this service (Peers: 1.4) |
$1,265.00an average of $115.00 per time performed |
$354.31 an average of $32.21 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.
This provider did not bill Medicare for any 5’s.
Derek L Barker
Average for Ophthalmology Providers in South Carolina
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 2015 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.