Karl Nadolsky Jr., DO
NPI 1053567743ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Holland, MI
Internal Medicine, Endocrinology, Diabetes & Metabolism (DO) in Holland, Michigan, licensed in MI, with an NPI issued in August 2008. Their prescriptions cost Medicare Part D more than their services did: $2,093,292 for 3,268 claims, against $22,067 paid for services in 2024. Corcept Therapeutics was the largest of 20 companies reporting payments in 2025, $15,466 in all, mostly speaking and faculty fees. Lists Bronson South Haven Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1053567743 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Aug 13, 2008 |
| Last updated in NPPES | Mar 10, 2025 |
| Certified by provider | Mar 10, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 5101023031 | MI |
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 - Endocrinology (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 169 |
|---|---|
| Services billed | 382 across 16 procedure codes |
| Paid by Medicare | $22,067 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,268 · 7,194 30-day fills |
|---|---|
| Patients | 476 |
| Total drug cost | $2,093,292 |
| Generic share | 42% of claims |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Hospital affiliations
- Bronson South Haven HospitalSouth Haven, MI
- Corewell Health Zeeland HospitalZeeland, MI
- Holland HospitalHolland, MI
- Spectrum HealthGrand Rapids, MI
Industry payments (Open Payments)
- 2025$15,466 · 124 payments from 20 companies
- 2024$2,122 · 107 payments from 26 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Corcept Therapeutics | $7,812 | 19 |
| Sanofi-Aventis U.S. LLC | $4,797 | 4 |
| Xeris Pharmaceuticals, Inc. | $709.81 | 9 |
| Novo Nordisk Inc | $335.39 | 25 |
| Amgen Inc. | $334.35 | 13 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$7,401 · 3 payments
- Honoraria$5,020 · 3 payments
- Food and Beverage$2,994 · 117 payments
- Travel and Lodging$51.40 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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