Quick answers
- Which hospitals does John S. Marvel work at?
- Medicare's official clinician data lists John S. Marvel at 2 hospitals: Flagstaff Medical Center and Verde Valley Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John S. Marvel see patients?
- Medicare's clinician data lists 1 practice location in Flagstaff, AZ. Call before your visit to confirm the address.
- What is John S. Marvel's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does John S. Marvel accept Medicare assignment?
- Yes. Medicare's clinician data says John S. Marvel 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 John S. Marvel?
- (928) 779-3366, as listed in official Medicare / NPI Registry data.
- What is John S. Marvel's NPI number?
- 1679610042. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John S. Marvel works
Medicare's Facility Affiliation Data lists John S. Marvel at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Flagstaff Medical CenterFlagstaff, AZ · Acute Care Hospital · CCN 030023
- Verde Valley Medical CenterCottonwood, AZ · Acute Care Hospital · CCN 030007
Practice locations
Addresses where John S. Marvel is enrolled with Medicare (CMS data updated 2026-10-02).
- 1200 N Beaver StFlagstaff, AZ 86001 (928) 779‑3366
Group practices
Medicare enrollment lists John S. Marvel as a member of this group (CMS data updated 2026-10-02).
- Northern Arizona Healthcare Corporation385 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Flagstaff
Clinicians with the same Medicare primary specialty in Flagstaff, AZ — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | At Still University Of Health Sciences, College Of Osteo Med, Kirksville |
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1679610042 |
| 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