Diemha Hoang, M.D.
NPI 1831120559ActiveIndividual· Physical Medicine & Rehabilitation· Long Beach, CA
Physical Medicine & Rehabilitation (M.D.) with Rehabilitation Associates Ptr, practicing in Long Beach, California. In 2024 Medicare paid $121,690 for 242 patients, and Part D covered 297 of their prescriptions, 89% of them generic. Merz Pharmaceuticals, LLC reported $125.72 in payments in 2025, mostly food and beverage. Lists Hoag Memorial Hospital Presbyterian as a hospital affiliation.
Overview
| NPI | 1831120559 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 5, 2006 |
| Last updated in NPPES | Nov 17, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physical Medicine & Rehabilitation Primary | 208100000X | A62572 | CA |
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 - Physical Medicine and Rehabilitation (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 242 |
|---|---|
| Services billed | 2,463 across 19 procedure codes |
| Paid by Medicare | $121,690 |
Part D prescriptions in 2024
| Prescriptions (claims) | 297 · 329 30-day fills |
|---|---|
| Patients | 101 |
| Total drug cost | $14,318 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Physical Medicine And Rehabilitation |
| Secondary specialties | Pain Management |
Medical group
- Rehabilitation Associates PtrLong Beach, CA · 7 clinicians
Hospital affiliation
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
Industry payments (Open Payments)
- 2025$125.72 · 4 payments from 1 company
- 2024$74.31 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merz Pharmaceuticals, LLC | $125.72 | 4 |
What the 2025 payments were for
- Food and Beverage$125.72 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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