Seema Sangwan, M.D.
NPI 1952370900ActiveIndividual· Internal Medicine· Sunnyvale, CA
Internal Medicine (M.D.) with Seema Sangwan MD Inc A California Professional Corporation, practicing in Sunnyvale, California. Their prescriptions cost Medicare Part D more than their services did: $163,329 for 1,316 claims, against $52,910 paid for services in 2024. Amgen Inc. was the largest of 10 companies reporting payments in 2025, $451.53 in all, mostly food and beverage. Lists Peninsula Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1952370900 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Mar 14, 2006 |
| Last updated in NPPES | Feb 24, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A78098 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 109 |
|---|---|
| Services billed | 561 across 26 procedure codes |
| Paid by Medicare | $52,910 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,316 · 3,060 30-day fills |
|---|---|
| Patients | 123 |
| Total drug cost | $163,329 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1997 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Seema Sangwan MD Inc A California Professional CorporationSan Mateo, CA · 3 clinicians
Hospital affiliations
- Peninsula Medical CenterBurlingame, CA
- Stanford Health CareStanford, CA
- UCSF Medical CenterSan Francisco, CA
Other facilities
- Best Home Health Providers, IncHome health agency · Hayward, CA
- Sutter Care at HomeHome health agency · San Mateo, CA
Industry payments (Open Payments)
- 2025$451.53 · 20 payments from 10 companies
- 2024$163.99 · 8 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $106.46 | 4 |
| Exact Sciences Corporation | $84.25 | 4 |
| Lilly USA, LLC | $50.62 | 3 |
| Philips North America LLC | $42.38 | 2 |
| Novo Nordisk Inc | $42.32 | 2 |
What the 2025 payments were for
- Food and Beverage$451.53 · 20 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 52 internal medicine physicians in Sunnyvale · All internal medicine physicians in California