Ann Marie Shahwan, MD
NPI 1417040809ActiveIndividual· Internal Medicine· West Hills, CA
Internal Medicine (MD) in West Hills, California, trained at University of Nebraska College of Medicine (class of 1997). In 2024 Medicare paid $174,845 for 475 patients, and Part D covered 958 of their prescriptions, 87% of them generic. Shionogi Inc was the largest of 7 companies reporting payments in 2025, $541.46 in all, mostly food and beverage.
Overview
| NPI | 1417040809 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 30, 2006 |
| Last updated in NPPES | Sep 11, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A79070 | CA |
| Internal Medicine, Infectious Disease | 207RI0200X | A79070 | 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 - Infectious Disease (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 475 |
|---|---|
| Services billed | 1,734 across 14 procedure codes |
| Paid by Medicare | $174,845 |
Part D prescriptions in 2024
| Prescriptions (claims) | 958 · 1,787 30-day fills |
|---|---|
| Patients | 95 |
| Total drug cost | $240,843 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of Nebraska College of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Infectious Disease |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliations
- Northridge Hospital Medical CenterNorthridge, CA
- UCLA West Valley Medical CenterWest Hills, CA
Industry payments (Open Payments)
- 2025$541.46 · 21 payments from 7 companies
- 2024$602.33 · 24 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Shionogi Inc | $189.68 | 7 |
| Insmed, Inc. | $143.12 | 5 |
| Viiv Healthcare Company | $95.31 | 3 |
| Abbvie Inc. | $41.19 | 2 |
| Gilead Sciences, Inc. | $30.58 | 2 |
What the 2025 payments were for
- Food and Beverage$539.58 · 20 payments
- Education$1.88 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 39 internal medicine physicians in West Hills · All internal medicine physicians in California