Richard Chang, MD
NPI 1790789618ActiveIndividual· Orthopaedic Surgery· Flemington, NJ
Orthopaedic Surgery (MD) in Flemington, New Jersey, trained at New York University School of Medicine (class of 1994). 368 Medicare patients in 2024, $132,544 paid; nearly all of their 329 Part D prescriptions were generic (95%). Guard Medical Inc. was the largest of 2 companies reporting payments in 2025, $302.31 in all, mostly food and beverage.
Overview
| NPI | 1790789618 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 9, 2005 |
| Last updated in NPPES | Jan 29, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | 25MA07577300 | NJ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hand Surgery (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 368 |
|---|---|
| Services billed | 12,376 across 86 procedure codes |
| Paid by Medicare | $132,544 |
Part D prescriptions in 2024
| Prescriptions (claims) | 329 · 345 30-day fills |
|---|---|
| Patients | 226 |
| Total drug cost | $74,216 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | New York University School of Medicine |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Hand Surgery |
| Secondary specialties | Orthopedic Surgery |
Medical group
- Hunterdon Orthopedic Institute PAFlemington, NJ · 26 clinicians
Hospital affiliations
- Community Medical CenterToms River, NJ
- Hunterdon Medical CenterFlemington, NJ
- St Joseph's University Medical Center IncPaterson, NJ
- St Luke's Warren HospitalPhillipsburg, NJ
Other facilities
- Kessler Rehab CenterInpatient rehabilitation facility · West Orange, NJ
Industry payments (Open Payments)
- 2025$302.31 · 4 payments from 2 companies
- 2024$223.01 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Guard Medical Inc. | $286.81 | 3 |
| Astrazeneca Pharmaceuticals LP | $15.50 | 1 |
What the 2025 payments were for
- Food and Beverage$302.31 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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