Quick answers
- Which hospitals does Michael K. Ryan work at?
- Medicare's official clinician data lists Michael K. Ryan at 2 hospitals: Bellin Health Oconto Hospital and St Marys Hospital Medical Ctr. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael K. Ryan see patients?
- Medicare's clinician data lists 4 practice locations, including Green Bay, WI, Marinette, WI and Oconto, WI. Call before your visit to confirm the address.
- What is Michael K. Ryan's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty, and also Sports Medicine.
- Does Michael K. Ryan accept Medicare assignment?
- Yes. Medicare's clinician data says Michael K. Ryan 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 Michael K. Ryan?
- (920) 430-4888, as listed in official Medicare / NPI Registry data.
- What is Michael K. Ryan's NPI number?
- 1124314612. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael K. Ryan works
Medicare's Facility Affiliation Data lists Michael K. Ryan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bellin Health Oconto HospitalOconto, WI · Critical Access Hospital · CCN 521356
- St Marys Hospital Medical CtrGreen Bay, WI · Acute Care Hospital · CCN 520097
Practice locations
Addresses where Michael K. Ryan is enrolled with Medicare (CMS data updated 2026-10-02).
- 1970 S Ridge RdGreen Bay, WI 54304 (920) 430‑4888
- 2820 Roosevelt RdMarinette, WI 54143 (715) 735‑5225
- 744 S Webster AveGreen Bay, WI 54301 (920) 433‑6025
- 820 Arbutus AveOconto, WI 54153 (920) 835‑1100
Group practices
Medicare enrollment lists Michael K. Ryan as a member of these groups (CMS data updated 2026-10-02).
- Bellin Memorial Hospital Inc697 clinicians in the group
- Oconto Hospital and Medical Center Inc222 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
- Sports Medicinealso
Other orthopedic surgeons in Green Bay
Clinicians with the same Medicare primary specialty in Green Bay, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1124314612 |
| 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