Weihan Wang, MD
NPI 1982875449ActiveIndividual· Internal Medicine· Rockville, MD
Internal Medicine (MD) with Professional Services of Holy Cross and 1 other group, practicing in Rockville, Maryland. Their prescriptions cost Medicare Part D more than their services did: $551,167 for 8,379 claims, against $134,638 paid for services in 2024. Gilead Sciences, Inc. was the largest of 6 companies reporting payments in 2025, $433.96 in all, mostly food and beverage. Lists Frederick Health Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1982875449 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 12, 2008 |
| Last updated in NPPES | Jan 28, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | D0067092 | MD |
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 (DC); Practitioner - Internal Medicine (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 379 |
|---|---|
| Services billed | 2,061 across 32 procedure codes |
| Paid by Medicare | $134,638 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,379 · 12,044 30-day fills |
|---|---|
| Patients | 468 |
| Total drug cost | $551,167 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1992 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Professional Services of Holy CrossSilver Spring, MD · 158 clinicians
- Ravi Passi MD PCRockville, MD · 6 clinicians
Hospital affiliations
- Frederick Health HospitalFrederick, MD
- Holy Cross Germantown HospitalGermantown, MD
Other facilities
- Adventist Home Health Services, Inc.Home health agency · Silver Spring, MD
- Frederick Health HospiceHospice · Frederick, MD
- Potomac Valley Rehabilitation and HealthcareNursing home · Rockville, MD
- Shady Grove Nursing and Rehabilitation CenterNursing home · Rockville, MD
Industry payments (Open Payments)
- 2025$433.96 · 14 payments from 6 companies
- 2024$665.00 · 13 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $189.42 | 7 |
| Otsuka America Pharmaceutical, Inc. | $135.33 | 2 |
| Amgen Inc. | $38.73 | 2 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $28.76 | 1 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $23.45 | 1 |
What the 2025 payments were for
- Food and Beverage$433.96 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 273 internal medicine physicians in Rockville · All internal medicine physicians in Maryland