Frederick S. Tan, MD
NPI 1689698615ActiveIndividual· Internal Medicine, Nephrology· Bryan, TX
Internal Medicine, Nephrology (MD) in Bryan, Texas, licensed in TX, with an NPI issued in July 2006. Their prescriptions cost Medicare Part D more than their services did: $376,470 for 2,328 claims, against $216,995 paid for services in 2024. Lists Baylor Scott & White Medical Center- College Stati and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1689698615 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 26, 2006 |
| Last updated in NPPES | Feb 2, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | K8511 | TX |
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 (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 483 |
|---|---|
| Services billed | 2,472 across 14 procedure codes |
| Paid by Medicare | $216,995 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,328 · 5,338 30-day fills |
|---|---|
| Patients | 425 |
| Total drug cost | $376,470 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 1982 |
|---|---|
| Medicare specialty | Nephrology |
Hospital affiliations
- Baylor Scott & White Medical Center- College StatiCollege Station, TX
- Chi St Joseph Health Regional HospitalBryan, TX
- Madison St Joseph Health CenterMadisonville, TX
Other facilities
- Davita Briarcrest DialysisDialysis facility · Bryan, TX
- Davita Rock Prairie Road DialysisDialysis facility · College Station, TX
- Liberty Dialysis Brenham LLCDialysis facility · Brenham, TX
- Liberty Dialysis BryanDialysis facility · Bryan, TX
- Liberty Dialysis College StationDialysis facility · College Station, TX
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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