Quick answers
- Which hospitals does John M. Phelan work at?
- Medicare's official clinician data lists John M. Phelan at 5 hospitals: Columbus Community Hospital, Sauk Prairie Hospital, SSM Health St Clare Hospital - Baraboo, SSM Health St Mary's Hospital - Madison and The Monroe Clinic. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John M. Phelan see patients?
- Medicare's clinician data lists 2 practice locations, including Monroe, WI and Madison, WI. Call before your visit to confirm the address.
- What is John M. Phelan's specialty?
- Medicare lists Interventional Cardiology as the primary specialty, and also Cardiovascular Disease (Cardiology).
- Does John M. Phelan accept Medicare assignment?
- Yes. Medicare's clinician data says John M. Phelan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for John M. Phelan?
- (608) 324-2000, as listed in official Medicare / NPI Registry data.
- What is John M. Phelan's NPI number?
- 1144271263. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John M. Phelan works
Medicare's Facility Affiliation Data lists John M. Phelan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Columbus Community HospitalColumbus, WI · Critical Access Hospital · CCN 521338
- Sauk Prairie HospitalPrairie Du Sac, WI · Acute Care Hospital · CCN 520095
- SSM Health St Clare Hospital - BarabooBaraboo, WI · Acute Care Hospital · CCN 520057
- SSM Health St Mary's Hospital - MadisonMadison, WI · Acute Care Hospital · CCN 520083
- The Monroe ClinicMonroe, WI · Acute Care Hospital · CCN 520028
Practice locations
Addresses where John M. Phelan is enrolled with Medicare (CMS data updated 2026-10-02).
- 2009 5th StMonroe, WI 53566 (608) 324‑2000
- 700 S Park St, Suite AMadison, WI 53715 (608) 260‑2900
Group practices
Medicare enrollment lists John M. Phelan as a member of these groups (CMS data updated 2026-10-02).
- Dean Health Systems Inc1,159 clinicians in the group
- The Monroe Clinic, Inc.199 clinicians in the group
Specialties
Other interventional cardiologists in Monroe
Clinicians with the same Medicare primary specialty in Monroe, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Rochester School Of Medicine And Dentistry |
| Graduation year | 1984 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1144271263 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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