David S. Siu, M.D.
NPI 1255303939ActiveIndividual· Specialist· York, PA
Specialist (M.D.) in York, Pennsylvania, trained at Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $232,997 for 1,041 claims, against $151,443 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 18 companies reporting payments in 2025, $730.41 in all, mostly food and beverage.
Overview
| NPI | 1255303939 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 6, 2006 |
| Last updated in NPPES | Jan 9, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | MD425667 | PA |
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 (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 369 |
|---|---|
| Services billed | 1,712 across 20 procedure codes |
| Paid by Medicare | $151,443 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,041 · 2,292 30-day fills |
|---|---|
| Patients | 187 |
| Total drug cost | $232,997 |
| Generic share | 71% of claims |
Education and affiliations
| Medical school | Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Nephrology |
Medical group
- Nephrology Associates of York PCYork, PA · 8 clinicians
Hospital affiliations
- Gettysburg HospitalGettysburg, PA
- Upmc HanoverHanover, PA
- Upmc MemorialYork, PA
- Wellspan York HospitalYork, PA
Other facilities
- Davita Hanover DialysisDialysis facility · Hanover, PA
- Davita Saint Charles Way DialysisDialysis facility · York, PA
- Usrc Central YorkDialysis facility · York, PA
- Usrc YorkDialysis facility · York, PA
- Wellspan Surgery and Rehabilitation HospitalInpatient rehabilitation facility · York, PA
Industry payments (Open Payments)
- 2025$730.41 · 32 payments from 18 companies
- 2024$1,326 · 50 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $91.61 | 3 |
| Mallinckrodt Hospital Products Inc. | $74.85 | 3 |
| Calliditas Therapeutics US Inc. | $67.46 | 2 |
| Bayer Healthcare Pharmaceuticals Inc. | $62.68 | 3 |
| Akebia Therapeutics Inc | $48.42 | 2 |
What the 2025 payments were for
- Food and Beverage$730.41 · 32 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 29 Specialist providers in York · All Specialist providers in Pennsylvania