Quick answers
- Which hospitals does Ryan O. Oneill work at?
- Medicare's official clinician data lists Ryan O. Oneill at 5 hospitals: Beloit Health System, Edgerton Hospital and Health Services, SSM Health St Mary's Hospital - Janesville, SSM Health St Mary's Hospital - Madison and Upland Hills Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ryan O. Oneill see patients?
- Medicare's clinician data lists 4 practice locations, including Edgerton, WI, Madison, WI and Highland, WI. Call before your visit to confirm the address.
- What is Ryan O. Oneill's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Ryan O. Oneill accept Medicare assignment?
- Yes. Medicare's clinician data says Ryan O. Oneill 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 Ryan O. Oneill?
- (608) 884-3441, as listed in official Medicare / NPI Registry data.
- What is Ryan O. Oneill's NPI number?
- 1538411277. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ryan O. Oneill works
Medicare's Facility Affiliation Data lists Ryan O. Oneill at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Beloit Health SystemBeloit, WI · Acute Care Hospital · CCN 520100
- Edgerton Hospital and Health ServicesEdgerton, WI · Critical Access Hospital · CCN 521319
- SSM Health St Mary's Hospital - JanesvilleJanesville, WI · Acute Care Hospital · CCN 520208
- SSM Health St Mary's Hospital - MadisonMadison, WI · Acute Care Hospital · CCN 520083
- Upland Hills HealthDodgeville, WI · Critical Access Hospital · CCN 521352
Practice locations
Addresses where Ryan O. Oneill is enrolled with Medicare (CMS data updated 2026-10-02).
- 11101 N Sherman RdEdgerton, WI 53534 (608) 884‑3441
- 2501 W Beltline Hwy, Suite 601Madison, WI 53713 (608) 234‑7436
- 551 Main StHighland, WI 53543 (608) 929‑4518
- 800 Compassion WayDodgeville, WI 53533
Group practices
Medicare enrollment lists Ryan O. Oneill as a member of these groups (CMS data updated 2026-10-02).
- Upland Hills Health Inc101 clinicians in the group
- Edgerton Hospital and Health Services, Inc43 clinicians in the group
- Orthopedic and Spine Centers of Wisconsin SC25 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Edgerton
Clinicians with the same Medicare primary specialty in Edgerton, WI — not a recommendation.
Clinician information
| Graduation year | 2012 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538411277 |
| 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