Mona Pinghua Chang, MD
NPI 1639159825ActiveIndividual· Family Medicine· Williamsport, PA
Family Medicine (MD) in Williamsport, Pennsylvania, trained at New York University School of Medicine (class of 1986). Their prescriptions cost Medicare Part D more than their services did: $733,041 for 8,209 claims, against $109,599 paid for services in 2024. Abbvie Inc. was the largest of 10 companies reporting payments in 2025, $348.01 in all, mostly food and beverage.
Overview
| NPI | 1639159825 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jan 23, 2006 |
| Last updated in NPPES | Apr 13, 2022 |
| Certified by provider | Apr 13, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | MD044123E | PA |
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 - Family Practice (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 329 |
|---|---|
| Services billed | 2,166 across 67 procedure codes |
| Paid by Medicare | $109,599 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,209 · 16,549 30-day fills |
|---|---|
| Patients | 504 |
| Total drug cost | $733,041 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | New York University School of Medicine |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical groups
- Phoenix Rehabilitation and Health Services IncCranberry Twp, PA · 2,800 clinicians
- Family Practice Center PCNewport, PA · 361 clinicians
Hospital affiliations
- Geisinger Medical CenterDanville, PA
- Upmc MuncyMuncy, PA
- Upmc WilliamsportWilliamsport, PA
- Wellspan Evangelical Community HospitalLewisburg, PA
Other facilities
- Upmc Home HealthcareHome health agency · Williamsport, PA
- Family HospiceHospice · Williamsport, PA
Industry payments (Open Payments)
- 2025$348.01 · 15 payments from 10 companies
- 2024$392.25 · 21 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $97.18 | 4 |
| Dexcom, Inc. | $52.19 | 2 |
| Harmony Biosciences LLC | $40.37 | 1 |
| Pfizer Inc. | $37.88 | 2 |
| Novo Nordisk Inc | $26.00 | 1 |
What the 2025 payments were for
- Food and Beverage$348.01 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other family medicine physicians in Williamsport
- 1023630480
- 1134616576
- 1205870102
- 1306073051
- 1306882725
- 1376582841
- 1386224384
- 1528268026
- 1548231673
- 1588618730
- 1619184454
- 1689121014
All 81 family medicine physicians in Williamsport · All family medicine physicians in Pennsylvania