Quick answers
- Does Annemarie F. McMahon accept Medicare assignment?
- Yes. Medicare's clinician data says Annemarie F. McMahon accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Annemarie F. McMahon's NPI number?
- 1245953728. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Annemarie F. McMahon works
Medicare's Facility Affiliation Data lists Annemarie F. McMahon at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- SSM Health St Mary's Hospital - MadisonMadison, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520083
Practice locations
Addresses where Annemarie F. McMahon is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 1211 Fish Hatchery RdMadison, WI 53715 (608) 252‑8000
- 1821 S Stoughton RdMadison, WI 53716 (608) 260‑6000
- 515 22nd AveMonroe, WI 53566 (608) 324‑2000
- 700 S Park StMadison, WI 53715 (608) 251‑6100
- 700 S Park St, Suite AMadison, WI 53715 (608) 260‑2900
Group practices
Medicare enrollment lists Annemarie F. McMahon as a member of this group (CMS data updated October 2, 2026).
- Dean Health Systems Inc1,159 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Madison
Clinicians with the same Medicare primary specialty in Madison, WI — not a recommendation.
Other clinicians in Dean Health Systems Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| School | Mayo Medical School |
|---|---|
| Graduation year | 2024 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1245953728 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians