Neil H. Stollman, MD
NPI 1225095763ActiveIndividual· Internal Medicine, Gastroenterology· Oakland, CA
Internal Medicine, Gastroenterology (MD) in Oakland, California, trained at New York University School of Medicine (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $172,783 for 1,001 claims, against $107,779 paid for services in 2024. Abbvie Inc. was the largest of 17 companies reporting payments in 2025, $1,947 in all, mostly food and beverage.
Overview
| NPI | 1225095763 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 27, 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 | G85603 | 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 | 509 |
|---|---|
| Services billed | 828 across 25 procedure codes |
| Paid by Medicare | $107,779 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,001 · 1,568 30-day fills |
|---|---|
| Patients | 420 |
| Total drug cost | $172,783 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | New York University School of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- East Bay Center for Digestive Health Medical Associates IncOakland, CA · 11 clinicians
Hospital affiliation
- Alta Bates Summit Medical CenterOakland, CA
Industry payments (Open Payments)
- 2025$1,947 · 71 payments from 17 companies
- 2024$45,429 · 94 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $474.83 | 16 |
| Janssen Biotech, Inc. | $283.65 | 6 |
| Takeda Pharmaceuticals U.S.A., Inc. | $265.20 | 11 |
| Ardelyx, Inc. | $202.61 | 7 |
| Aimmune Therapeutics, Inc. | $138.29 | 7 |
What the 2025 payments were for
- Food and Beverage$1,947 · 71 payments
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