Specialty Directory
Surgery in Walnut Creek, CA
Federal CMS data for 13 surgery providers practicing in Walnut Creek, CA. Includes Medicare utilization, Open Payments industry funding, and PECOS enrollment status.
13
Providers
Median industry payments
$18,481
13
Surgery Providers
in Walnut Creek, CA
$18,481
Median Industry Payments
per provider (2018–2024)
623
Median Medicare Services
fee-for-service claims
How to read this directory: Providers are listed by Medicare service volume, which reflects only
Medicare fee-for-service patients (typically 65+). This does not represent total practice volume.
Industry payments span multiple years and payment types — they are legal and do not indicate wrongdoing.
Surgery includes multiple subspecialties with different practice patterns.
Learn more →
Surgery Providers
NPPES · Open Payments · Medicare| Provider | Medicare Volume | Beneficiaries* | Top Procedure | Industry Payments | Payment Type | Coverage |
|---|---|---|---|---|---|---|
| OTERO, FERNANDO MD | 15,480 | 1,845 | Contrast dye for imaging (iodine-based) | $6,066 (2018-2024) | Food & Beverage (100%) | Very High |
| KEYASHIAN, BRIAN M.D. | 9,090 | 1,795 | Contrast dye for imaging (iodine-based) | $18,996 (2018-2024) | Travel (71%) | Very High |
| OBNIAL, GONZALO M.D. | 6,244 | 1,664 | Contrast dye for imaging (iodine-based) | $10,255 (2018-2024) | Consulting (41%) | Very High |
| KIM, RAN M.D. | 1,129 | 571 | Office visit, established patient (30-39 min) | $29,426 (2018-2024) | Food & Beverage (50%) | Very High |
| CHIN, BRIAN MD | 939 | 505 | Additional skin and tissue removal, per 20 sq cm | $1,330 (2018-2024) | Food & Beverage (100%) | Very High |
| MOY, JASON MD | 753 | 363 | Skin and tissue removal, 20 sq cm or less | $34,568 (2018-2024) | Education (93%) | Very High |
| MOHEBATI, ARASH MD | 623 | 510 | Office visit, established patient (20-29 min) | $5,040 (2018-2024) | Education (89%) | Very High |
| SALEHOMOUM, NEGAR M.D. | 393 | 358 | Anoscopy | $22,543 (2018-2024) | Education (57%) | Very High |
| ZINK, JOHN MD | 356 | 261 | Hospital follow-up visit, moderate complexity | $18,274 (2021-2024) | Education (82%) | Very High |
| GUEVARA, SALVADOR M.D. | 247 | 222 | Anoscopy | $76,862 (2018-2024) | Education (65%) | Very High |
| MARTIN, SEAN M.D. | 168 | 101 | Hospital follow-up visit, moderate complexity | $7,220 (2020-2024) | Consulting (77%) | Very High |
| KANG, EUGENIA MD | 132 | 101 | Hospital follow-up visit, high complexity | $18,481 (2018-2024) | Education (64%) | Very High |
| LO, IRENE M.D. | 59 | 59 | New patient office visit (45-59 min) | $27,978 (2018-2024) | Education (67%) | Very High |
Note: Surgery encompasses multiple subspecialties with different practice patterns.
Differences in payment amounts and procedure volumes may reflect subspecialty focus
rather than practice quality. Consider viewing individual profiles for full context.
By Practice Pattern
Surgery encompasses multiple practice patterns. Comparing providers within the same pattern provides more meaningful context.
Clinical Cardiology (8)
| Provider | Medicare Volume | Industry Payments |
|---|---|---|
| KIM, RAN | 1,129 | $29,426 |
| CHIN, BRIAN | 939 | $1,330 |
| MOY, JASON | 753 | $34,568 |
| MOHEBATI, ARASH | 623 | $5,040 |
| SALEHOMOUM, NEGAR | 393 | $22,543 |
| GUEVARA, SALVADOR | 247 | $76,862 |
| KANG, EUGENIA | 132 | $18,481 |
| LO, IRENE | 59 | $27,978 |
Mixed Practice (5)
| Provider | Medicare Volume | Industry Payments |
|---|---|---|
| OTERO, FERNANDO | 15,480 | $6,066 |
| KEYASHIAN, BRIAN | 9,090 | $18,996 |
| OBNIAL, GONZALO | 6,244 | $10,255 |
| ZINK, JOHN | 356 | $18,274 |
| MARTIN, SEAN | 168 | $7,220 |