Specialty Directory
Gastroenterology in Oceanside, CA
Federal CMS data for 6 gastroenterology providers practicing in Oceanside, CA. Includes Medicare utilization, Open Payments industry funding, and PECOS enrollment status.
6
Providers
Median industry payments
$9,068
6
Gastroenterology Providers
in Oceanside, CA
$9,068
Median Industry Payments
per provider (2018–2024)
734
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.
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 |
|---|---|---|---|---|---|---|
| ALLY, MAZER M.D. | 919 | 809 | Office visit, established patient (30-39 min) | $177,029 (2018-2024) | Consulting (88%) | Very High |
| VIERNES, MATTHEW M.D. | 832 | 762 | Office visit, established patient (30-39 min) | $10,384 (2018-2024) | Food & Beverage (99%) | Very High |
| SHAD, JAVAID M.D. | 767 | 730 | Office visit, established patient (30-39 min) | $7,092 (2018-2024) | Food & Beverage (97%) | Very High |
| DEVEREAUX, CHRISTOPHER M.D. | 701 | 658 | Office visit, established patient (30-39 min) | $8,470 (2018-2024) | Food & Beverage (100%) | Very High |
| SHIM, MICHAEL M.D. | 601 | 576 | Colon polyp removal with endoscopic snare | $9,099 (2018-2024) | Food & Beverage (100%) | Very High |
| CHIAO, HELLEN MD | 382 | 354 | Office visit, established patient (30-39 min) | $9,036 (2018-2024) | Food & Beverage (100%) | 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.