Sithu Lin, M.D.
NPI 1023417649ActiveIndividual· Internal Medicine, Nephrology· Fountain Valley, CA
Internal Medicine, Nephrology (M.D.) with Golden Valley Health Centers and 2 other groups, practicing in Fountain Valley, California. Their prescriptions cost Medicare Part D more than their services did: $116,827 for 801 claims, against $11,237 paid for services in 2024. Novo Nordisk Inc was the largest of 6 companies reporting payments in 2025, $258.32 in all, mostly food and beverage. Lists Adventist Health Sonora and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1023417649 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 19, 2014 |
| Last updated in NPPES | Jul 11, 2023 |
| Certified by provider | Jul 11, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A-143411 | 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 - Nephrology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 51 |
|---|---|
| Services billed | 118 across 9 procedure codes |
| Paid by Medicare | $11,237 |
Part D prescriptions in 2024
| Prescriptions (claims) | 801 · 1,855 30-day fills |
|---|---|
| Patients | 179 |
| Total drug cost | $116,827 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical groups
- Golden Valley Health CentersDos Palos, CA · 113 clinicians
- Modesto Kidney Medical GroupModesto, CA · 5 clinicians
- Centurion Valley Healthcare IncModesto, CA · 2 clinicians
Hospital affiliations
- Adventist Health SonoraSonora, CA
- Doctors Medical CenterModesto, CA
- Memorial Medical CenterModesto, CA
- Oak Valley Hospital DistrictOakdale, CA
Other facilities
- Usrc Modesto DialysisDialysis facility · Modesto, CA
- Community Hospice, Inc - HospiceHospice · Modesto, CA
- Encompass Health Rehabilitation Hospital of ModestInpatient rehabilitation facility · Modesto, CA
Industry payments (Open Payments)
- 2025$258.32 · 8 payments from 6 companies
- 2024$626.99 · 13 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $117.95 | 2 |
| Calliditas Therapeutics US Inc. | $60.13 | 2 |
| Ascendis Pharma Endocrinology Inc | $27.96 | 1 |
| Kyowa Kirin, Inc. | $21.14 | 1 |
| Akebia Therapeutics Inc | $16.77 | 1 |
What the 2025 payments were for
- Food and Beverage$226.05 · 7 payments
- Education$32.27 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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