David J. Kowalski, M.D.
NPI 1538194600ActiveIndividual· Internal Medicine· Effingham, IL
Internal Medicine (M.D.) in Effingham, Illinois, trained at Southern Illinois University School of Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $951,306 for 15,402 claims, against $23,698 paid for services in 2024.
Overview
| NPI | 1538194600 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 11, 2006 |
| Last updated in NPPES | May 21, 2020 |
| Certified by provider | May 21, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036089116 | IL |
| Pediatrics | 208000000X | 036089116 | IL |
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 (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 362 |
|---|---|
| Services billed | 1,293 across 18 procedure codes |
| Paid by Medicare | $23,698 |
Part D prescriptions in 2024
| Prescriptions (claims) | 15,402 · 29,178 30-day fills |
|---|---|
| Patients | 726 |
| Total drug cost | $951,306 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Southern Illinois University School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Pediatric Medicine |
Medical groups
- Springfield Clinic, LLPSpringfield, IL · 687 clinicians
- St Anthonys Memorial Hospital of the Hospital Sisters of the ThirdEffingham, IL · 25 clinicians
- Marshall Clinic Effingham S CEffingham, IL · 14 clinicians
Hospital affiliations
- Clay County HospitalFlora, IL
- Memorial Medical CenterSpringfield, IL
- Sarah Bush Lincoln Health CenterMattoon, IL
- St Anthonys Memorial HospitalEffingham, IL
Other facilities
- Hshs Home Care IllinoisHome health agency · Effingham, IL
- Lhc-Illinois Home Health CareHome health agency · Marion, IL
- Sarah Bush Lincoln Home CareHome health agency · Charleston, IL
- Lakeland Rehab & Healthcare CenterNursing home · Effingham, IL
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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