Quick answers
- Which hospitals does Ryan D. Willen work at?
- Medicare's official clinician data lists Ryan D. Willen at 3 hospitals: Banner Baywood Medical Center, Banner Heart Hospital and Banner Ironwood Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ryan D. Willen see patients?
- Medicare's clinician data lists 1 practice location in Mesa, AZ. Call before your visit to confirm the address.
- What is Ryan D. Willen's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
- Does Ryan D. Willen accept Medicare assignment?
- Yes. Medicare's clinician data says Ryan D. Willen 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 D. Willen?
- (480) 321-2000, as listed in official Medicare / NPI Registry data.
- What is Ryan D. Willen's NPI number?
- 1912432063. 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 D. Willen works
Medicare's Facility Affiliation Data lists Ryan D. Willen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Banner Baywood Medical CenterMesa, AZ · Acute Care Hospital · CCN 030088
- Banner Heart HospitalMesa, AZ · Acute Care Hospital · CCN 030105
- Banner Ironwood Medical CenterQueen Creek, AZ · Acute Care Hospital · CCN 030130
Practice locations
Addresses where Ryan D. Willen is enrolled with Medicare (CMS data updated 2026-10-02).
- 6644 E Baywood AveMesa, AZ 85206 (480) 321‑2000
Group practices
Medicare enrollment lists Ryan D. Willen as a member of this group (CMS data updated 2026-10-02).
- Banner Hospital Based Physicians Arizona LLC637 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in Mesa
Clinicians with the same Medicare primary specialty in Mesa, AZ — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | At Still University, Arizona School Of Dentistry & Oral Hlth |
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1912432063 |
| 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