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.
NANCY CHEN M.D.
ESCONDIDO, CA, 92025
How This Provider Compares
This Provider
Avg in State & Specialty
Providers in this state and specialty were reimbursed, on average, $565 per patient in 2015.
They performed about 16 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
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 her Part B patients.
This Provider's Services
This provider performed 79 different services in 2015
(42 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 |
|---|---|---|---|---|---|---|
SKIN, HAIR AND NAILSDestruction of 2-14 skin growths Service Code: 17003Performed in an office |
3,527 times performed, 27% of her services |
1st 10th most performed service for this provider most performed service in this state & specialty |
489 patients got this service, 35% of her patients |
1.2 average number of visits a patient made for this service (Peers: 1.5) |
$56,467.27an average of $16.01 per time performed |
$16,012.58 an average of $4.54 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 |
1,891 times performed, 14% of her services |
2nd 1st most performed service for this provider most performed service in this state & specialty |
1,068 patients got this service, 77% of her patients |
1.8 average number of visits a patient made for this service (Peers: 2.1) |
$163,136.57an average of $86.27 per time performed |
$98,861.48 an average of $52.28 per time performed |
PATHOLOGY AND LABORATORYPathology examination of tissue using a microscope, inter... + Pathology examination of tissue using a microscope, intermediate complexity × Service Code: 88305Performed in an office |
1,829 times performed, 14% of her services |
3rd 17th most performed service for this provider most performed service in this state & specialty |
702 patients got this service, 51% of her patients |
1.9 average number of visits a patient made for this service (Peers: 1.3) |
$164,884.35an average of $90.15 per time performed |
$57,229.41 an average of $31.29 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 |
1,098 times performed, 8% of her services |
4th 33rd most performed service for this provider most performed service in this state & specialty |
601 patients got this service, 43% of her patients |
1.8 average number of visits a patient made for this service (Peers: 1.6) |
$61,575.84an average of $56.08 per time performed |
$36,486.54 an average of $33.23 per time performed |
SKIN, HAIR AND NAILSBiopsy of single growth of skin and/or tissue Service Code: 11100Performed in an office |
1,019 times performed, 8% of her services |
5th 60th most performed service for this provider most performed service in this state & specialty |
716 patients got this service, 52% of her patients |
1.4 average number of visits a patient made for this service (Peers: 1.3) |
$137,565.00an average of $135.00 per time performed |
$81,723.80 an average of $80.20 per time performed |
SKIN, HAIR AND NAILSService Code: 17000Performed in an office |
742 times performed, 6% of her services |
6th 35th most performed service for this provider most performed service in this state & specialty |
576 patients got this service, 42% of her patients |
1.3 average number of visits a patient made for this service (Peers: 1.6) |
$72,790.20an average of $98.10 per time performed |
$30,384.90 an average of $40.95 per time performed |
SKIN, HAIR AND NAILSDestruction of 15 or more skin growths Service Code: 17004Performed in an office |
496 times performed, 4% of her services |
7th 73rd most performed service for this provider most performed service in this state & specialty |
358 patients got this service, 26% of her patients |
1.4 average number of visits a patient made for this service (Peers: 1.9) |
$173,600.00an average of $350.00 per time performed |
$58,959.52 an average of $118.87 per time performed |
SKIN, HAIR AND NAILSBiopsy of each additional growth of skin and/or tissue Service Code: 11101Performed in an office |
392 times performed, 3% of her services |
8th 89th most performed service for this provider most performed service in this state & specialty |
269 patients got this service, 19% of her patients |
1.2 average number of visits a patient made for this service (Peers: 1.3) |
$22,540.00an average of $57.50 per time performed |
$10,340.96 an average of $26.38 per time performed |
EVALUATION AND MANAGEMENTNew patient office or other outpatient visit, typically 3... + New patient office or other outpatient visit, typically 30 minutes × Service Code: 99203Performed in an office |
324 times performed, 2% of her services |
9th 43rd most performed service for this provider most performed service in this state & specialty |
324 patients got this service, 23% of her patients |
1 average number of visits a patient made for this service (Peers: 1) |
$42,120.00an average of $130.00 per time performed |
$24,024.60 an average of $74.15 per time performed |
SKIN, HAIR AND NAILSRemoval and microscopic examination of growth of the head... + Removal and microscopic examination of growth of the head, neck, hands, feet, or genitals (first stage, up to 5 tissue blocks) × Service Code: 17311Performed in an office |
185 times performed, 1% of her services |
10th 197th most performed service for this provider most performed service in this state & specialty |
149 patients got this service, 11% of her patients |
1.1 average number of visits a patient made for this service (Peers: 1.2) |
$157,250.00an average of $850.00 per time performed |
$88,861.05 an average of $480.33 per time performed |
SKIN, HAIR AND NAILSRepair of wound (2.6 to 7.5 centimeters) of the scalp, un... + Repair of wound (2.6 to 7.5 centimeters) of the scalp, underarms, trunk, arms, and/or legs × Service Code: 12032Performed in an office |
176 times performed, 1% of her services |
11th 427th most performed service for this provider most performed service in this state & specialty |
149 patients got this service, 11% of her patients |
1.2 average number of visits a patient made for this service (Peers: 1.2) |
$79,200.00an average of $450.00 per time performed |
$41,433.92 an average of $235.42 per time performed |
SKIN, HAIR AND NAILSDestruction of malignant growth (1.1 to 2.0 centimeters) ... + Destruction of malignant growth (1.1 to 2.0 centimeters) of trunk, arms, or legs × Service Code: 17262Performed in an office |
151 times performed, 1% of her services |
12th 276th most performed service for this provider most performed service in this state & specialty |
111 patients got this service, 8% of her patients |
1.2 average number of visits a patient made for this service (Peers: 1.2) |
$33,975.00an average of $225.00 per time performed |
$18,659.07 an average of $123.57 per time performed |
DRUGSInjection, triamcinolone acetonide, not otherwise specif... + Injection, triamcinolone acetonide, not otherwise specified, 10 mg × Service Code: J3301Performed in an office |
143 times performed, 1% of her services |
13th 49th most performed service for this provider most performed service in this state & specialty |
31 patients got this service, 2% of her patients |
2.1 average number of visits a patient made for this service (Peers: 1.5) |
$2,332.33an average of $16.31 per time performed |
$180.18 an average of $1.26 per time performed |
SKIN, HAIR AND NAILSRemoval and microscopic examination of growth of the head... + Removal and microscopic examination of growth of the head, neck, hands, feet, or genitals × Service Code: 17312Performed in an office |
117 times performed, 0.89% of her services |
14th 241st most performed service for this provider most performed service in this state & specialty |
73 patients got this service, 5% of her patients |
1.1 average number of visits a patient made for this service (Peers: 1.1) |
$64,350.00an average of $550.00 per time performed |
$37,372.14 an average of $319.42 per time performed |
SKIN, HAIR AND NAILSRemoval of malignant growth (1.1 to 2.0 centimeters) of t... + Removal of malignant growth (1.1 to 2.0 centimeters) of the trunk, arms, or legs × Service Code: 11602Performed in an office |
116 times performed, 0.88% of her services |
15th 449th most performed service for this provider most performed service in this state & specialty |
103 patients got this service, 7% of her patients |
1.1 average number of visits a patient made for this service (Peers: 1.1) |
$34,800.00an average of $300.00 per time performed |
$12,011.80 an average of $103.55 per time performed |
SKIN, HAIR AND NAILSDestruction of up to 14 skin growths Service Code: 17110Performed in an office |
77 times performed, 0.58% of her services |
16th 98th most performed service for this provider most performed service in this state & specialty |
61 patients got this service, 4% of her patients |
1.3 average number of visits a patient made for this service (Peers: 1.3) |
$15,400.00an average of $200.00 per time performed |
$6,732.11 an average of $87.43 per time performed |
DRUGSAminolevulinic acid hcl for topical administration, 20%, ... + Aminolevulinic acid hcl for topical administration, 20%, single unit dosage form (354 mg) × Service Code: J7308Performed in an office |
73 times performed, 0.55% of her services |
17th 388th most performed service for this provider most performed service in this state & specialty |
65 patients got this service, 5% of her patients |
1.1 average number of visits a patient made for this service (Peers: 1.3) |
$22,010.23an average of $301.51 per time performed |
$15,547.54 an average of $212.98 per time performed |
SKIN, HAIR AND NAILSDestruction of malignant growth (1.1 to 2.0 centimeters) ... + Destruction of malignant growth (1.1 to 2.0 centimeters) of scalp, neck, hands, feet, or genitals × Service Code: 17272Performed in an office |
72 times performed, 0.55% of her services |
18th 344th most performed service for this provider most performed service in this state & specialty |
57 patients got this service, 4% of her patients |
1.1 average number of visits a patient made for this service (Peers: 1.4) |
$19,800.00an average of $275.00 per time performed |
$9,810.00 an average of $136.25 per time performed |
MEDICINEApplication of light to aid destruction of premalignant a... + Application of light to aid destruction of premalignant and/or malignant skin growths, each session × Service Code: 96567Performed in an office |
71 times performed, 0.54% of her services |
19th 426th most performed service for this provider most performed service in this state & specialty |
65 patients got this service, 5% of her patients |
1.1 average number of visits a patient made for this service (Peers: 1.3) |
$12,425.00an average of $175.00 per time performed |
$7,029.71 an average of $99.01 per time performed |
TEMPORARY CODESAll potassium hydroxide (koh) preparations Service Code: Q0112Performed in an office |
56 times performed, 0.42% of her services |
20th
most performed service for this provider 5 or fewer providers in this specialty in CA perform this service |
48 patients got this service, 3% of her patients |
1.2 average number of visits a patient made for this service |
$1,120.00an average of $20.00 per time performed |
$318.64 an average of $5.69 per time performed |
AUDITORY SYSTEMService Code: 69100Performed in an office |
53 times performed, 0.4% of her services |
21st 557th most performed service for this provider most performed service in this state & specialty |
50 patients got this service, 4% of her patients |
1 average number of visits a patient made for this service (Peers: 1.1) |
$7,950.00an average of $150.00 per time performed |
$3,168.87 an average of $59.79 per time performed |
SKIN, HAIR AND NAILSDestruction of malignant growth (1.1 to 2.0 centimeters) ... + Destruction of malignant growth (1.1 to 2.0 centimeters) of face, ears, eyelids, nose, lips, or mouth × Service Code: 17282Performed in an office |
50 times performed, 0.38% of her services |
22nd 308th most performed service for this provider most performed service in this state & specialty |
47 patients got this service, 3% of her patients |
1 average number of visits a patient made for this service (Peers: 1.4) |
$15,000.00an average of $300.00 per time performed |
$8,033.00 an average of $160.66 per time performed |
SKIN, HAIR AND NAILSRepair of wound (2.6 to 7.5 centimeters) of forehead, che... + Repair of wound (2.6 to 7.5 centimeters) of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, and/or feet × Service Code: 13132Performed in an office |
45 times performed, 0.34% of her services |
23rd 326th most performed service for this provider most performed service in this state & specialty |
42 patients got this service, 3% of her patients |
1.1 average number of visits a patient made for this service (Peers: 1.1) |
$33,750.00an average of $750.00 per time performed |
$8,772.75 an average of $194.95 per time performed |
SKIN, HAIR AND NAILSInjection of up to 7 skin growths Service Code: 11900Performed in an office |
38 times performed, 0.29% of her services |
24th 369th most performed service for this provider most performed service in this state & specialty |
13 patients got this service, 0.94% of her patients |
2.9 average number of visits a patient made for this service (Peers: 1.4) |
$2,850.00an average of $75.00 per time performed |
$1,682.64 an average of $44.28 per time performed |
SKIN, HAIR AND NAILSRepair of wound (2.6 to 7.5 centimeters) of neck, hands, ... + Repair of wound (2.6 to 7.5 centimeters) of neck, hands, feet, and/or genitals × Service Code: 12042Performed in an office |
32 times performed, 0.24% of her services |
25th 1184th most performed service for this provider most performed service in this state & specialty |
31 patients got this service, 2% of her patients |
1 average number of visits a patient made for this service (Peers: 1) |
$11,520.00an average of $360.00 per time performed |
$6,504.64 an average of $203.27 per time performed |
SKIN, HAIR AND NAILSRemoval of growth (1.1 to 2.0 centimeters) of the trunk, ... + Removal of growth (1.1 to 2.0 centimeters) of the trunk, arms, or legs × Service Code: 11402Performed in an office |
30 times performed, 0.23% of her services |
26th 592nd most performed service for this provider most performed service in this state & specialty |
30 patients got this service, 2% of her patients |
1 average number of visits a patient made for this service (Peers: 1.6) |
$6,000.00an average of $200.00 per time performed |
$2,052.30 an average of $68.41 per time performed |
SKIN, HAIR AND NAILSRepair of wound (2.6 to 5.0 centimeters) of face, ears, e... + Repair of wound (2.6 to 5.0 centimeters) of face, ears, eyelids, nose, lips, and/or mouth × Service Code: 12052Performed in an office |
29 times performed, 0.22% of her services |
27th 1001st most performed service for this provider most performed service in this state & specialty |
29 patients got this service, 2% of her patients |
1 average number of visits a patient made for this service (Peers: 1.1) |
$10,875.00an average of $375.00 per time performed |
$6,258.49 an average of $215.81 per time performed |
SKIN, HAIR AND NAILSDestruction of malignant growth (2.1 to 3.0 centimeters) ... + Destruction of malignant growth (2.1 to 3.0 centimeters) of trunk, arms, or legs × Service Code: 17263Performed in an office |
29 times performed, 0.22% of her services |
28th 767th most performed service for this provider most performed service in this state & specialty |
28 patients got this service, 2% of her patients |
1 average number of visits a patient made for this service (Peers: 1.2) |
$7,250.00an average of $250.00 per time performed |
$4,225.88 an average of $145.72 per time performed |
MEDICINEInjection beneath the skin or into muscle for therapy, di... + Injection beneath the skin or into muscle for therapy, diagnosis, or prevention × Service Code: 96372Performed in an office |
27 times performed, 0.2% of her services |
29th 46th most performed service for this provider most performed service in this state & specialty |
21 patients got this service, 2% of her patients |
1.3 average number of visits a patient made for this service (Peers: 3.4) |
$945.00an average of $35.00 per time performed |
$486.00 an average of $18.00 per time performed |
SKIN, HAIR AND NAILSRemoval of malignant growth (1.1 to 2.0 centimeters) of t... + Removal of malignant growth (1.1 to 2.0 centimeters) of the face, ears, eyelids, nose, or lips × Service Code: 11642Performed in an office |
26 times performed, 0.2% of her services |
30th 674th most performed service for this provider most performed service in this state & specialty |
26 patients got this service, 2% of her patients |
1 average number of visits a patient made for this service (Peers: 1.1) |
$9,750.00an average of $375.00 per time performed |
$3,333.46 an average of $128.21 per time performed |
SKIN, HAIR AND NAILSRemoval of malignant growth (1.1 to 2.0 centimeters) of t... + Removal of malignant growth (1.1 to 2.0 centimeters) of the scalp, neck, hands, feet, or genitals × Service Code: 11622Performed in an office |
26 times performed, 0.2% of her services |
31st 960th most performed service for this provider most performed service in this state & specialty |
25 patients got this service, 2% of her patients |
1 average number of visits a patient made for this service (Peers: 1) |
$8,060.00an average of $310.00 per time performed |
$3,047.20 an average of $117.20 per time performed |
SKIN, HAIR AND NAILSRemoval of malignant growth (2.1 to 3.0 centimeters) of t... + Removal of malignant growth (2.1 to 3.0 centimeters) of the trunk, arms, or legs × Service Code: 11603Performed in an office |
22 times performed, 0.17% of her services |
32nd 636th most performed service for this provider most performed service in this state & specialty |
20 patients got this service, 1% of her patients |
1.1 average number of visits a patient made for this service (Peers: 1.1) |
$7,700.00an average of $350.00 per time performed |
$2,780.36 an average of $126.38 per time performed |
SKIN, HAIR AND NAILSDestruction of malignant growth (0.6 to 1.0 centimeters) ... + Destruction of malignant growth (0.6 to 1.0 centimeters) of trunk, arms, or legs × Service Code: 17261Performed in an office |
17 times performed, 0.13% of her services |
33rd 428th most performed service for this provider most performed service in this state & specialty |
14 patients got this service, 1% of her patients |
1.1 average number of visits a patient made for this service (Peers: 1.1) |
$3,060.00an average of $180.00 per time performed |
$1,359.15 an average of $79.95 per time performed |
SKIN, HAIR AND NAILSDestruction of malignant growth (2.1 to 3.0 centimeters) ... + Destruction of malignant growth (2.1 to 3.0 centimeters) of scalp, neck, hands, feet, or genitals × Service Code: 17273Performed in an office |
14 times performed, 0.11% of her services |
34th
most performed service for this provider 5 or fewer providers in this specialty in CA perform this service |
13 patients got this service, 0.94% of her patients |
1.1 average number of visits a patient made for this service |
$4,900.00an average of $350.00 per time performed |
$2,268.98 an average of $162.07 per time performed |
SKIN, HAIR AND NAILSTissue transfer repair of wound (10.1 to 30.0 sq centimet... + Tissue transfer repair of wound (10.1 to 30.0 sq centimeters) of the forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, and/or feet × Service Code: 14041Performed in an office |
13 times performed, 0.1% of her services |
35th 1051st most performed service for this provider most performed service in this state & specialty |
13 patients got this service, 0.94% of her patients |
1 average number of visits a patient made for this service (Peers: 1.1) |
$15,275.00an average of $1,175.00 per time performed |
$9,999.21 an average of $769.17 per time performed |
SKIN, HAIR AND NAILSDestruction of malignant growth (0.6 to 1.0 centimeters) ... + Destruction of malignant growth (0.6 to 1.0 centimeters) of face, ears, eyelids, nose, lips, or mouth × Service Code: 17281Performed in an office |
13 times performed, 0.1% of her services |
36th 317th most performed service for this provider most performed service in this state & specialty |
12 patients got this service, 0.87% of her patients |
1.1 average number of visits a patient made for this service (Peers: 1.3) |
$3,250.00an average of $250.00 per time performed |
$1,674.53 an average of $128.81 per time performed |
SKIN, HAIR AND NAILSRemoval and microscopic examination of growth of the trun... + Removal and microscopic examination of growth of the trunk, arms, or legs (first stage, up to 5 tissue blocks) × Service Code: 17313Performed in an office |
11 times performed, 0.08% of her services |
37th 563rd most performed service for this provider most performed service in this state & specialty |
11 patients got this service, 0.79% of her patients |
1 average number of visits a patient made for this service (Peers: 1.2) |
$8,800.00an average of $800.00 per time performed |
$5,473.71 an average of $497.61 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.
Nancy P Chen
Average for Specialist Providers in California
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.