Silvia M. Villagomez, MD
NPI 1790743359ActiveIndividual· Internal Medicine, Gastroenterology· Oakland, CA
Internal Medicine, Gastroenterology (MD) in Oakland, California, trained at Harvard Medical School (class of 1989). In 2024 Medicare paid $113,960 for 491 patients, and Part D covered 833 of their prescriptions, 80% of them generic. Abbvie Inc. was the largest of 14 companies reporting payments in 2025, $1,742 in all, mostly food and beverage.
Overview
| NPI | 1790743359 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 3, 2006 |
| Last updated in NPPES | Nov 20, 2023 |
| Certified by provider | Nov 20, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | G71593 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 491 |
|---|---|
| Services billed | 853 across 26 procedure codes |
| Paid by Medicare | $113,960 |
Part D prescriptions in 2024
| Prescriptions (claims) | 833 · 1,293 30-day fills |
|---|---|
| Patients | 376 |
| Total drug cost | $169,748 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Alameda Health SystemOakland, CA · 601 clinicians
- East Bay Center for Digestive Health Medical Associates IncOakland, CA · 11 clinicians
Hospital affiliations
- Alta Bates Summit Medical CenterOakland, CA
- Alta Bates Summit Medical Center - Alta Bates CampBerkeley, CA
- Highland HospitalOakland, CA
Industry payments (Open Payments)
- 2025$1,742 · 65 payments from 14 companies
- 2024$2,360 · 88 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $324.90 | 16 |
| Lilly USA, LLC | $280.57 | 10 |
| Janssen Biotech, Inc. | $257.41 | 5 |
| Takeda Pharmaceuticals U.S.A., Inc. | $201.45 | 11 |
| Gilead Sciences, Inc. | $171.73 | 3 |
What the 2025 payments were for
- Food and Beverage$1,726 · 64 payments
- Education$15.93 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 30 gastroenterologists in Oakland · All gastroenterologists in California