Ayesha Zahiruddin, MD
NPI 1942598396ActiveIndividual· Internal Medicine, Gastroenterology· Oakland, CA
Internal Medicine, Gastroenterology (MD) with Alameda Health System, practicing in Oakland, California. Their prescriptions cost Medicare Part D more than their services did: $41,151 for 82 claims, against $25,677 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 4 companies reporting payments in 2025, $487.10 in all, mostly food and beverage. Lists Alameda Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1942598396 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 19, 2011 |
| Last updated in NPPES | Sep 15, 2020 |
| Certified by provider | Sep 15, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | C167311 | CA |
| Internal Medicine, Gastroenterology | 207RG0100X | 271861 | NY |
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 | 141 |
|---|---|
| Services billed | 240 across 25 procedure codes |
| Paid by Medicare | $25,677 |
Part D prescriptions in 2024
| Prescriptions (claims) | 82 · 104 30-day fills |
|---|---|
| Patients | 39 |
| Total drug cost | $41,151 |
| Generic share | 68% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical group
- Alameda Health SystemOakland, CA · 601 clinicians
Hospital affiliations
- Alameda HospitalAlameda, CA
- Highland HospitalOakland, CA
Industry payments (Open Payments)
- 2025$487.10 · 4 payments from 4 companies
- 2024$344.89 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $142.30 | 1 |
| Janssen Biotech, Inc. | $124.21 | 1 |
| Olympus America Inc. | $122.46 | 1 |
| Gilead Sciences, Inc. | $98.13 | 1 |
What the 2025 payments were for
- Food and Beverage$487.10 · 4 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