Yumei Mary Chang, M.D.
NPI 1134381908ActiveIndividual· Internal Medicine· New York, NY
Internal Medicine (M.D.) in New York, New York, trained at University of California, Geffen School of Medicine (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $127,538 for 1,502 claims, against $8,161 paid for services in 2024. Gilead Sciences, Inc. reported $26.28 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1134381908 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 1, 2008 |
| Last updated in NPPES | Jan 9, 2026 |
| Certified by provider | Jan 9, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD463062 | 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 - Internal Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 27 |
|---|---|
| Services billed | 120 across 14 procedure codes |
| Paid by Medicare | $8,161 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,502 · 2,645 30-day fills |
|---|---|
| Patients | 103 |
| Total drug cost | $127,538 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Jgb Rehabilitation CorporationNew York, NY · 13 clinicians
Industry payments (Open Payments)
- 2024$26.28 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $26.28 | 1 |
What the 2024 payments were for
- Food and Beverage$26.28 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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