John Michael Kaczmar, MD
NPI 1134448079ActiveIndividual· Internal Medicine, Medical Oncology· Charleston, SC
Internal Medicine, Medical Oncology (MD) with University Medical Associates of the Medical University of South Carol, practicing in Charleston, South Carolina. Their prescriptions cost Medicare Part D more than their services did: $1,375,027 for 600 claims, against $53,771 paid for services in 2024. Regeneron Pharmaceuticals, Inc. was the largest of 3 companies reporting payments in 2025, $3,782 in all, mostly consulting fees. Lists Musc Medical Center as a hospital affiliation.
Overview
| NPI | 1134448079 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 18, 2010 |
| Last updated in NPPES | Mar 10, 2022 |
| Certified by provider | Mar 10, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 40321 | SC |
| Internal Medicine | 207R00000X | MT197543 | PA |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 40321 | SC |
| Student in an Organized Health Care Education/Training Program | 390200000X | MT197543 | PA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Medical Oncology (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 238 |
|---|---|
| Services billed | 952 across 14 procedure codes |
| Paid by Medicare | $53,771 |
Part D prescriptions in 2024
| Prescriptions (claims) | 600 · 701 30-day fills |
|---|---|
| Patients | 115 |
| Total drug cost | $1,375,027 |
| Generic share | 79% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Medical Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- University Medical Associates of the Medical University of South CarolCharleston, SC · 1,668 clinicians
Hospital affiliation
- Musc Medical CenterCharleston, SC
Industry payments (Open Payments)
- 2025$3,782 · 10 payments from 3 companies
- 2024$3,079 · 12 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Pharmaceuticals, Inc. | $3,677 | 8 |
| Axogen | $71.22 | 1 |
| Caris Mpi, Inc. | $34.29 | 1 |
What the 2025 payments were for
- Consulting Fee$3,235 · 2 payments
- Food and Beverage$547.14 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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