Aijaz Ahmed, MD
NPI 1447351747ActiveIndividual· Internal Medicine, Hepatology· Stanford, CA
Internal Medicine, Hepatology (MD) with Stanford Health Care, practicing in Stanford, California. Their prescriptions cost Medicare Part D more than their services did: $452,877 for 1,381 claims, against $87,063 paid for services in 2024. Bausch Health US, LLC was the largest of 2 companies reporting payments in 2025, $654.45 in all, mostly consulting fees. Lists Adventist Health Twin Cities and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1447351747 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 26, 2006 |
| Last updated in NPPES | Sep 3, 2026 |
| Certified by provider | Sep 3, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hepatology Primary | 207RI0008X | A60520 | CA |
| Internal Medicine, Gastroenterology | 207RG0100X | A60520 | CA |
| Family Medicine, Bariatric Medicine | 207QB0002X | A60520 | CA |
| Internal Medicine, Transplant Hepatology | 207RT0003X | A60520 | 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 | 480 |
|---|---|
| Services billed | 797 across 17 procedure codes |
| Paid by Medicare | $87,063 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,381 · 2,406 30-day fills |
|---|---|
| Patients | 156 |
| Total drug cost | $452,877 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliations
- Adventist Health Twin CitiesTempleton, CA
- French Hospital Medical CenterSan Luis Obispo, CA
- Marian Regional Medical CenterSanta Maria, CA
- Renown Regional Medical CenterReno, NV
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$654.45 · 2 payments from 2 companies
- 2024$12,644 · 12 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bausch Health US, LLC | $625.00 | 1 |
| Mauna Kea Technologies, Inc. | $29.45 | 1 |
What the 2025 payments were for
- Consulting Fee$625.00 · 1 payment
- Food and Beverage$29.45 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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