Abraham Lin, MD
NPI 1124604202ActiveIndividual· Hospitalist· Los Angeles, CA
Hospitalist (MD) in Los Angeles, California, trained at University of Massachusetts Medical School (class of 2021). Their prescriptions cost Medicare Part D more than their services did: $123,909 for 250 claims, against $11,067 paid for services in 2024. Mallinckrodt Hospital Products Inc. reported $136.09 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1124604202 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 20, 2021 |
| Last updated in NPPES | Oct 1, 2025 |
| Certified by provider | Oct 1, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | A204214 | CA |
| Internal Medicine | 207R00000X | A204214 | 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 - Hospitalist (CA); Practitioner - Internal Medicine (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 27 |
|---|---|
| Services billed | 128 across 6 procedure codes |
| Paid by Medicare | $11,067 |
Part D prescriptions in 2024
| Prescriptions (claims) | 250 · 486 30-day fills |
|---|---|
| Patients | 27 |
| Total drug cost | $123,909 |
| Generic share | 62% of claims |
Education and affiliations
| Medical school | University of Massachusetts Medical School |
|---|---|
| Graduation year | 2021 |
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine |
Medical group
- The Regents of the University of CaliforniaSanta Monica, CA · 1,462 clinicians
Hospital affiliation
- Santa Monica - UCLA Med Ctr & Orthopaedic HospitalSanta Monica, CA
Industry payments (Open Payments)
- 2025$136.09 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mallinckrodt Hospital Products Inc. | $136.09 | 1 |
What the 2025 payments were for
- Food and Beverage$136.09 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 247 hospitalists in Los Angeles · All hospitalists in California