Mark W. Collar, M.D.
NPI 1659354553ActiveIndividual· Anesthesiology· Monroe, WI
Anesthesiology (M.D.) in Monroe, Wisconsin, trained at Saint Louis University School of Medicine (class of 1994). Medicare paid $14,622 for services to 248 patients in 2024.
Overview
| NPI | 1659354553 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 23, 2005 |
| Last updated in NPPES | Feb 21, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 38554 | WI |
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 - Anesthesiology (MI); Practitioner - Anesthesiology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 248 |
|---|---|
| Services billed | 264 across 36 procedure codes |
| Paid by Medicare | $14,622 |
Education and affiliations
| Medical school | Saint Louis University School of Medicine |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Anesthesiology |
Medical group
- Hospitalist Medicine Physicians of Michigan-Alpena PLLCIron Mountain, MI · 24 clinicians
Hospital affiliation
- Dickinson County Memorial HospitalIron Mountain, MI
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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