Tam Chang, PA-C
NPI 1861537458ActiveIndividual· Physician Assistant· Worcester, MA
Physician Assistant (PA-C) with Le and Chang Family Urgent Care PC, practicing in Worcester, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $2,257,760 for 34,416 claims, against $8,712 paid for services in 2024. Sumitomo Pharma America, Inc. was the largest of 5 companies reporting payments in 2025, $342.72 in all, mostly food and beverage. Lists St Vincent Hospital as a hospital affiliation.
Overview
| NPI | 1861537458 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Feb 21, 2007 |
| Last updated in NPPES | May 12, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 1271 | MA |
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 - Physician Assistant (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 47 |
|---|---|
| Services billed | 155 across 8 procedure codes |
| Paid by Medicare | $8,712 |
Part D prescriptions in 2024
| Prescriptions (claims) | 34,416 · 36,249 30-day fills |
|---|---|
| Patients | 507 |
| Total drug cost | $2,257,760 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Le and Chang Family Urgent Care PCWorcester, MA · 3 clinicians
Hospital affiliation
- St Vincent HospitalWorcester, MA
Industry payments (Open Payments)
- 2025$342.72 · 19 payments from 5 companies
- 2024$185.06 · 11 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sumitomo Pharma America, Inc. | $163.31 | 11 |
| Gilead Sciences, Inc. | $104.93 | 5 |
| Lilly USA, LLC | $29.44 | 1 |
| Pfizer Inc. | $22.75 | 1 |
| Astrazeneca Pharmaceuticals LP | $22.29 | 1 |
What the 2025 payments were for
- Food and Beverage$342.72 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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