David J. Krempa, M.D.
NPI 1780753038ActiveIndividual· Internal Medicine· Jamestown, NY
Internal Medicine (M.D.) with Krempa Medical Associates LLP, practicing in Jamestown, New York. Their prescriptions cost Medicare Part D more than their services did: $530,843 for 3,833 claims, against $14,303 paid for services in 2024. Amgen Inc. was the largest of 12 companies reporting payments in 2025, $1,134 in all, mostly food and beverage. Lists Upmc Chautauqua at Wca and 1 other hospital as hospital affiliations.
Overview
| NPI | 1780753038 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 8, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 208756 | NY |
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 - Internal Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 62 |
|---|---|
| Services billed | 185 across 15 procedure codes |
| Paid by Medicare | $14,303 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,833 · 8,710 30-day fills |
|---|---|
| Patients | 202 |
| Total drug cost | $530,843 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1987 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Krempa Medical Associates LLPJamestown, NY · 2 clinicians
Hospital affiliations
- Upmc Chautauqua at WcaJamestown, NY
- Warren General HospitalWarren, PA
Industry payments (Open Payments)
- 2025$1,134 · 62 payments from 12 companies
- 2024$1,729 · 104 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $280.16 | 21 |
| Lilly USA, LLC | $250.11 | 11 |
| Novo Nordisk Inc | $208.40 | 10 |
| Astrazeneca Pharmaceuticals LP | $113.95 | 5 |
| Novartis Pharmaceuticals Corporation | $67.55 | 3 |
What the 2025 payments were for
- Food and Beverage$1,134 · 62 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 28 internal medicine physicians in Jamestown · All internal medicine physicians in New York