Quick answers
- Which hospitals does Gregory M. Cooley work at?
- Medicare's official clinician data lists Gregory M. Cooley at 4 hospitals: Reedsburg Area Medical Center, Sauk Prairie Hospital, UnityPoint Health - Meriter and University of WI Hospitals & Clinics Authority. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory M. Cooley see patients?
- Medicare's clinician data lists 2 practice locations, including Johnson Creek, WI and Madison, WI. Call before your visit to confirm the address.
- What is Gregory M. Cooley's specialty?
- Medicare lists Radiation Oncology as the primary specialty.
- Does Gregory M. Cooley accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory M. Cooley 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.
- Does Gregory M. Cooley offer telehealth?
- Medicare's clinician data says Gregory M. Cooley offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Gregory M. Cooley?
- (920) 699-3500, as listed in official Medicare / NPI Registry data.
- What is Gregory M. Cooley's NPI number?
- 1558302778. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory M. Cooley works
Medicare's Facility Affiliation Data lists Gregory M. Cooley at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Reedsburg Area Medical CenterReedsburg, WI · Critical Access Hospital · CCN 521351
- Sauk Prairie HospitalPrairie Du Sac, WI · Acute Care Hospital · CCN 520095
- UnityPoint Health - MeriterMadison, WI · Acute Care Hospital · CCN 520089
- University of WI Hospitals & Clinics AuthorityMadison, WI · Acute Care Hospital · CCN 520098
Practice locations
Addresses where Gregory M. Cooley is enrolled with Medicare (CMS data updated 2026-10-02).
- 250 Doctors CtJohnson Creek, WI 53038 (920) 699‑3500
- 600 Highland AveMadison, WI 53792 (608) 263‑6400
Group practices
Medicare enrollment lists Gregory M. Cooley as a member of this group (CMS data updated 2026-10-02).
- University of Wisconsin Medical Foundation Inc2,553 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in Johnson Creek
Clinicians with the same Medicare primary specialty in Johnson Creek, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 1987 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1558302778 |
| 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