Mary Wang, MD
NPI 1669564811ActiveIndividual· Internal Medicine· Rowland Heights, CA
Internal Medicine (MD) with Liu and Wang Medical Corp, practicing in Rowland Heights, California. Their prescriptions cost Medicare Part D more than their services did: $1,264,607 for 6,148 claims, against $85,528 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 9 companies reporting payments in 2025, $1,865 in all, mostly food and beverage.
Overview
| NPI | 1669564811 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Sep 28, 2006 |
| Last updated in NPPES | Feb 9, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A61785 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 166 |
|---|---|
| Services billed | 1,417 across 21 procedure codes |
| Paid by Medicare | $85,528 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,148 · 14,283 30-day fills |
|---|---|
| Patients | 401 |
| Total drug cost | $1,264,607 |
| Generic share | 79% of claims |
Education and affiliations
| Graduation year | 1991 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Liu and Wang Medical CorpAlhambra, CA · 2 clinicians
Other facilities
- Allegiance Home Health, IncHome health agency · Alhambra, CA
- Happy Home Health ServicesHome health agency · Arcadia, CA
Industry payments (Open Payments)
- 2025$1,865 · 44 payments from 9 companies
- 2024$2,296 · 60 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $1,199 | 23 |
| Abbvie Inc. | $224.34 | 7 |
| Aimmune Therapeutics, Inc. | $193.71 | 4 |
| Lilly USA, LLC | $59.58 | 2 |
| Exact Sciences Corporation | $47.61 | 2 |
What the 2025 payments were for
- Food and Beverage$1,865 · 44 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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