Quick answers
- Which hospitals does Michael H. Ryan work at?
- Medicare's official clinician data lists Michael H. Ryan at 5 hospitals: Allegheny Valley Hospital, Boone Hospital Center, Hannibal Regional Hospital, Phelps County Regional Medical Center and University of Missouri Health Care. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael H. Ryan see patients?
- Medicare's clinician data lists 2 practice locations, including Jefferson City, MO and Columbia, MO. Call before your visit to confirm the address.
- What is Michael H. Ryan's specialty?
- Medicare lists Cardiac Surgery as the primary specialty, and also Vascular Surgery.
- Does Michael H. Ryan accept Medicare assignment?
- Yes. Medicare's clinician data says Michael H. 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 Michael H. Ryan's NPI number?
- 1497750855. 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 H. Ryan works
Medicare's Facility Affiliation Data lists Michael H. Ryan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Allegheny Valley HospitalNatrona, PA · Acute Care Hospital · CCN 390032
- Boone Hospital CenterColumbia, MO · Acute Care Hospital · CCN 260068
- Hannibal Regional HospitalHannibal, MO · Acute Care Hospital · CCN 260025
- Phelps County Regional Medical CenterRolla, MO · Acute Care Hospital · CCN 260017
- University of Missouri Health CareColumbia, MO · Acute Care Hospital · CCN 260141
Practice locations
Addresses where Michael H. Ryan is enrolled with Medicare (CMS data updated 2026-10-02).
- 1620 Southridge Dr, Suite BJefferson City, MO 65109
- 4004 Peach Ct, Suite EColumbia, MO 65203
Specialties
- Cardiac Surgeryprimary
- Vascular Surgeryalso
Other cardiac surgeons in Missouri
Clinicians with the same Medicare primary specialty in Missouri — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Columbia University College Of Physicians And Surgeons |
| Graduation year | 1987 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1497750855 |
| 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