Andrew Lin, M.D.
NPI 1558484857ActiveIndividual· Internal Medicine, Nephrology· Walnut Creek, CA
Internal Medicine, Nephrology (M.D.) with Permanente Medical Group Inc, practicing in Walnut Creek, California. Their prescriptions cost Medicare Part D more than their services did: $96,606 for 525 claims, against $3,514 paid for services in 2024. Abbott Laboratories was the largest of 2 companies reporting payments in 2025, $1,617 in all, mostly travel and lodging. Lists Kaiser Foundation Hospital - Antioch and 1 other hospital as hospital affiliations.
Overview
| NPI | 1558484857 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 9, 2007 |
| Last updated in NPPES | Jul 5, 2023 |
| Certified by provider | Jul 5, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A99209 | CA |
| Internal Medicine | 207R00000X | A99209 | 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 - Nephrology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 20 |
|---|---|
| Services billed | 47 across 8 procedure codes |
| Paid by Medicare | $3,514 |
Part D prescriptions in 2024
| Prescriptions (claims) | 525 · 1,424 30-day fills |
|---|---|
| Patients | 130 |
| Total drug cost | $96,606 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- Permanente Medical Group IncOakland, CA · 10,996 clinicians
Hospital affiliations
- Kaiser Foundation Hospital - AntiochAntioch, CA
- Kaiser Foundation Hospital - Walnut CreekWalnut Creek, CA
Industry payments (Open Payments)
- 2025$1,617 · 12 payments from 2 companies
- 2024$18.87 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $1,449 | 11 |
| Boston Scientific Corporation | $167.71 | 1 |
What the 2025 payments were for
- Travel and Lodging$981.92 · 3 payments
- Food and Beverage$634.96 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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