Huai-En Rachel Chang, MD, MPH, MBA
NPI 1972130524ActiveIndividual· Student in an Organized Health Care Education/Training Program· Greenville, NC
Student in an Organized Health Care Education/Training Program (MD, MPH, MBA) in Greenville, North Carolina, licensed in MD, with an NPI issued in March 2020. 99 Medicare patients in 2024, $15,712 paid; nearly all of their 133 Part D prescriptions were generic (90%). Abbvie Inc. was the largest of 10 companies reporting payments in 2025, $505.76 in all, mostly food and beverage.
Overview
| NPI | 1972130524 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, MPH, MBA |
| Sole proprietor | No |
| NPI issued | Mar 24, 2020 |
| Last updated in NPPES | Sep 10, 2024 |
| Certified by provider | Sep 10, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Student in an Organized Health Care Education/Training Program Primary | 390200000X | — | — |
| Internal Medicine | 207R00000X | D95319 | 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 Order and Referring Only - Gastroenterology (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 99 |
|---|---|
| Services billed | 167 across 18 procedure codes |
| Paid by Medicare | $15,712 |
Part D prescriptions in 2024
| Prescriptions (claims) | 133 · 187 30-day fills |
|---|---|
| Patients | 66 |
| Total drug cost | $4,603 |
| Generic share | 90% of claims |
Industry payments (Open Payments)
- 2025$505.76 · 15 payments from 10 companies
- 2024$342.52 · 12 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $240.89 | 3 |
| Janssen Biotech, Inc. | $54.37 | 3 |
| Takeda Pharmaceuticals U.S.A., Inc. | $43.20 | 2 |
| Olympus America Inc. | $38.92 | 1 |
| Regeneron Healthcare Solutions, Inc. | $30.21 | 1 |
What the 2025 payments were for
- Food and Beverage$505.76 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 863 Student in an Organized Health Care Education/Training Program providers in Greenville · All Student in an Organized Health Care Education/Training Program providers in North Carolina