Joseph Mark Ciszewski, D.O.
NPI 1366937856ActiveIndividual· Internal Medicine· Palm Harbor, FL
Internal Medicine (D.O.) in Palm Harbor, Florida, trained at Liberty Univ College of Osteopathic Medicine (class of 2018). Their prescriptions cost Medicare Part D more than their services did: $338,299 for 2,722 claims, against $30,695 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 6 companies reporting payments in 2025, $180.02 in all, mostly food and beverage.
Overview
| NPI | 1366937856 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | Jun 27, 2018 |
| Last updated in NPPES | Mar 30, 2026 |
| Certified by provider | Mar 30, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | OS17776 | FL |
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 (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 149 |
|---|---|
| Services billed | 443 across 31 procedure codes |
| Paid by Medicare | $30,695 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,722 · 5,408 30-day fills |
|---|---|
| Patients | 474 |
| Total drug cost | $338,299 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Liberty Univ College of Osteopathic Medicine |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Internal Medicine |
Medical group
- Bowman and Hampsey Medical Clinic IncClearwater, FL · 9 clinicians
Industry payments (Open Payments)
- 2025$180.02 · 9 payments from 6 companies
- 2024$1,003 · 45 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $96.70 | 4 |
| Novo Nordisk Inc | $22.14 | 1 |
| Abbvie Inc. | $17.71 | 1 |
| Renalytix Ai, Inc. | $14.75 | 1 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $14.74 | 1 |
What the 2025 payments were for
- Food and Beverage$180.02 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 60 internal medicine physicians in Palm Harbor · All internal medicine physicians in Florida