David Y. Lin, DO
NPI 1679635353ActiveIndividual· Internal Medicine· Rosemead, CA
Internal Medicine (DO) in Rosemead, California, trained at Ohio University, College of Osteopathic Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $3,960,446 for 38,401 claims, against $876,796 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 28 companies reporting payments in 2025, $3,566 in all, mostly food and beverage.
Overview
| NPI | 1679635353 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Dec 15, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 20A6729 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 847 |
|---|---|
| Services billed | 13,085 across 21 procedure codes |
| Paid by Medicare | $876,796 |
Part D prescriptions in 2024
| Prescriptions (claims) | 38,401 · 53,156 30-day fills |
|---|---|
| Patients | 1,044 |
| Total drug cost | $3,960,446 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Ohio University, College of Osteopathic Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Internal Medicine |
Hospital affiliations
- Garfield Medical CenterMonterey Park, CA
- L A Downtown Medical CenterLos Angeles, CA
- San Gabriel Valley Medical CenterSan Gabriel, CA
- Usc Arcadia HospitalArcadia, CA
- Whittier Hospital Medical CenterWhittier, CA
Other facilities
- Bright Care Home Health, IncHome health agency · Rosemead, CA
- Diamond Star Home Health Care IncHome health agency · Glendale, CA
- Geras Home Health Care, Inc.Home health agency · Los Angeles, CA
- Reachwell Home Health, IncHome health agency · Valencia, CA
- US Medtrade Home Healthcare, IncHome health agency · Glendale, CA
- Monrovia Memorial HospitalLong-term care hospital · Monrovia, CA
- Alhambra Healthcare & Wellness Centre, LPNursing home · Alhambra, CA
- Arcadia Care CenterNursing home · Arcadia, CA
- Coast Care Convalescent CenterNursing home · Baldwin Park, CA
- Pine Grove Healthcare & Wellness Centre, LPNursing home · San Gabriel, CA
- Santa Anita Convalescent HospitalNursing home · Temple City, CA
Industry payments (Open Payments)
- 2025$3,566 · 83 payments from 28 companies
- 2024$4,630 · 131 payments from 26 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $448.46 | 14 |
| Teva Pharmaceuticals USA, Inc. | $442.30 | 6 |
| Pfizer Inc. | $318.52 | 10 |
| Bayer Healthcare Pharmaceuticals Inc. | $222.59 | 6 |
| Phathom Pharmaceuticals, Inc. | $165.09 | 2 |
What the 2025 payments were for
- Food and Beverage$3,566 · 83 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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