Specialty Directory
Gastroenterology in Torrance, CA
Federal CMS data for 20 gastroenterology providers practicing in Torrance, CA. Includes Medicare utilization, Open Payments industry funding, and PECOS enrollment status.
20
Providers
Median industry payments
$4,065
20
Gastroenterology Providers
in Torrance, CA
$4,065
Median Industry Payments
per provider (2018–2024)
1,005
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; disclosure alone establishes neither wrongdoing nor legality.
Gastroenterology includes multiple subspecialties with different practice patterns.
Learn more →
Gastroenterology Providers
NPPES · Open Payments · Medicare| Provider | Medicare Volume | Beneficiaries* | Top Procedure | Industry Payments | Payment Type | Coverage |
|---|---|---|---|---|---|---|
| OSATO, MASAHARU M.D. | 7,718 | — | Denosumab injection (Prolia/Xgeva) | $1,445 (2018-2024) | — | Very High |
| SIKAVI, CAMERON MD | 2,662 | — | Hospital follow-up visit, high complexity | $7,834 (2018-2024) | — | Very High |
| LEE, TONNY M.D. | 2,189 | — | Tissue pathology examination, moderate complexity | $111,379 (2018-2024) | — | Very High |
| ZAIDEL, OREN M.D. | 1,793 | — | Office visit, established patient (20-29 min) | $8,190 (2018-2024) | — | Very High |
| COHEN, JEROME M.D. | 1,549 | — | Tissue pathology examination, moderate complexity | $30,930 (2018-2024) | — | Very High |
| WEBMAN, ROBERT M.D | 1,507 | — | Office visit, established patient (30-39 min) | $1,452 (2018-2024) | — | Very High |
| SZE, GLORIA M.D. | 1,371 | — | Tissue pathology examination, moderate complexity | $6,948 (2018-2024) | — | Very High |
| RIYAZ, AZAM MD | 1,249 | — | New patient office visit (45-59 min) | $1,746 (2018-2024) | — | Very High |
| CHO, DANIEL M.D. | 1,185 | — | Office visit, established patient (20-29 min) | $6,094 (2018-2024) | — | Very High |
| SATTLER, JAMES MD | 1,045 | — | Tissue pathology examination, moderate complexity | $4,183 (2018-2024) | — | Very High |
| NGUYEN, ALEXANDER MD | 965 | — | Tissue pathology examination, moderate complexity | $10,156 (2018-2024) | — | Very High |
| FUKUNAGA, KARL MD | 953 | — | Tissue pathology examination, moderate complexity | $4,011 (2018-2024) | — | Very High |
| ATHER, NIMAH | 720 | — | Hospital follow-up visit, moderate complexity | $340 (2022-2024) | — | Very High |
| KHAJA, NAZIR M.D. | 669 | — | Hospital follow-up visit, moderate complexity | $3,944 (2018-2022) | — | Very High |
| CHUNG, DAVID MD | 641 | — | Tissue pathology examination, moderate complexity | $4,119 (2018-2024) | — | Very High |
| HAKIM, SHAHINA MD | 527 | — | Tissue pathology examination, moderate complexity | $2,109 (2018-2024) | — | Very High |
| TRAN, TIMOTHY MD | 516 | — | Tissue pathology examination, moderate complexity | $3,680 (2018-2024) | — | Very High |
| PATEL, CHIRAG MD | 474 | — | Office visit, established patient (30-39 min) | $2,390 (2018-2024) | — | Very High |
| HA, THAI MD | 460 | — | Tissue pathology examination, moderate complexity | $4,236 (2018-2024) | — | Very High |
| MUNSELL, MELISSA M.D. | 453 | — | Tissue pathology examination, moderate complexity | $2,735 (2021-2024) | — | Very High |
Note: Gastroenterology 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
Gastroenterology encompasses multiple practice patterns. Comparing providers within the same pattern provides more meaningful context.
Clinical Cardiology (18)
| Provider | Medicare Volume | Industry Payments |
|---|---|---|
| LEE, TONNY | 2,189 | $111,379 |
| ZAIDEL, OREN | 1,793 | $8,190 |
| COHEN, JEROME | 1,549 | $30,930 |
| WEBMAN, ROBERT | 1,507 | $1,452 |
| SZE, GLORIA | 1,371 | $6,948 |
| RIYAZ, AZAM | 1,249 | $1,746 |
| CHO, DANIEL | 1,185 | $6,094 |
| SATTLER, JAMES | 1,045 | $4,183 |
| NGUYEN, ALEXANDER | 965 | $10,156 |
| FUKUNAGA, KARL | 953 | $4,011 |
Mixed Practice (2)
| Provider | Medicare Volume | Industry Payments |
|---|---|---|
| OSATO, MASAHARU | 7,718 | $1,445 |
| SIKAVI, CAMERON | 2,662 | $7,834 |