Jan Andries Herholdt, MD
NPI 1558449538ActiveIndividual· Anesthesiology· Madison, WI
Anesthesiology (MD) with University of Louisville Physicians Inc, practicing in Madison, Wisconsin. Medicare paid $8,006 for services to 67 patients in 2024. Vertex Pharmaceuticals Incorporated reported $31.13 in payments in 2025, mostly food and beverage. Lists Uofl Health - Jewish Hospital and Mary & Elizabeth Hospital as a hospital affiliation.
Overview
| NPI | 1558449538 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 1, 2006 |
| Last updated in NPPES | Dec 8, 2025 |
| Certified by provider | Dec 8, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | V6183 | TX |
| Anesthesiology | 207L00000X | 419222 | KY |
| Anesthesiology | 207L00000X | 82470 | WI |
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 - Anesthesiology (KY); Practitioner - Anesthesiology (TX); Practitioner - Anesthesiology (WI); Practitioner - Anesthesiology (WV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 67 |
|---|---|
| Services billed | 69 across 25 procedure codes |
| Paid by Medicare | $8,006 |
Education and affiliations
| Graduation year | 1985 |
|---|---|
| Medicare specialty | Anesthesiology |
Medical group
- University of Louisville Physicians IncLouisville, KY · 1,445 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$31.13 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vertex Pharmaceuticals Incorporated | $31.13 | 1 |
What the 2025 payments were for
- Food and Beverage$31.13 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 287 anesthesiologists in Madison · All anesthesiologists in Wisconsin