Jeffrey A. Krempa, M.D.
NPI 1619046968ActiveIndividual· 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: $507,470 for 3,013 claims, against $24,742 paid for services in 2024. Amgen Inc. was the largest of 11 companies reporting payments in 2025, $1,388 in all, mostly food and beverage. Lists Upmc Chautauqua at Wca as a hospital affiliation.
Overview
| NPI | 1619046968 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 8, 2006 |
| Last updated in NPPES | Feb 6, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 179722 | 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 | 63 |
|---|---|
| Services billed | 361 across 16 procedure codes |
| Paid by Medicare | $24,742 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,013 · 7,532 30-day fills |
|---|---|
| Patients | 121 |
| Total drug cost | $507,470 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 1985 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Krempa Medical Associates LLPJamestown, NY · 2 clinicians
Hospital affiliation
- Upmc Chautauqua at WcaJamestown, NY
Industry payments (Open Payments)
- 2025$1,388 · 84 payments from 11 companies
- 2024$1,618 · 97 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $302.98 | 20 |
| Lilly USA, LLC | $296.79 | 13 |
| Novo Nordisk Inc | $228.27 | 11 |
| Astrazeneca Pharmaceuticals LP | $154.32 | 9 |
| Esperion Therapeutics, Inc. | $141.09 | 18 |
What the 2025 payments were for
- Food and Beverage$1,388 · 84 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