Quick answers
- Which hospitals does Mark Mahan work at?
- Medicare's official clinician data lists Mark Mahan at 5 hospitals: Capital Medical Center, Deaconess Medical Center, Lovelace Medical Center, Multicare Valley Hospital and MyMichigan Medical Center Saginaw. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark Mahan see patients?
- Medicare's clinician data lists 16 practice locations, including Mount Vernon, IL, Centralia, IL and Mount Pleasant, WI. Call before your visit to confirm the address.
- What is Mark Mahan's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty, and also Nuclear Medicine.
- Does Mark Mahan accept Medicare assignment?
- Medicare's clinician data says Mark Mahan may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Mark Mahan?
- (557) 203-1601, as listed in official Medicare / NPI Registry data.
- What is Mark Mahan's NPI number?
- 1609863778. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark Mahan works
Medicare's Facility Affiliation Data lists Mark Mahan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Capital Medical CenterOlympia, WA · Acute Care Hospital · CCN 500139
- Deaconess Medical CenterSpokane, WA · Acute Care Hospital · CCN 500044
- Lovelace Medical CenterAlbuquerque, NM · Acute Care Hospital · CCN 320009
- Multicare Valley HospitalSpokane Valley, WA · Acute Care Hospital · CCN 500119
- MyMichigan Medical Center SaginawSaginaw, MI · Acute Care Hospital · CCN 230077
Practice locations
Addresses where Mark Mahan is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 16; the Medicare profile lists all.
- 1 Good Samaritan WayMount Vernon, IL 62864 · Good Samaritan Regional Health Center (557) 203‑1601
- 1003 E McCord StCentralia, IL 62801 · St Marys Hospital Centralia Illinois (618) 436‑6633
- 10180 Washington AveMount Pleasant, WI 53177 · Premier Radiology Wisconsin LLC (414) 973‑7830
- 10501 Golf Course Rd NWAlbuquerque, NM 87114 (505) 727‑2000
- 124 Elena StSanta Fe, NM 87501 (718) 223‑4685
Group practices
Medicare enrollment lists Mark Mahan as a member of these groups (CMS data updated 2026-10-02).
- Multicare Health System2,325 clinicians in the group
- Radiology Alliance PC455 clinicians in the group
- Imaging Associates of Indiana PC301 clinicians in the group
- Empire State Radiology P C268 clinicians in the group
- Specialists in Medical Imaging SC234 clinicians in the group
- Imaging Associates of New Mexico LLC165 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
- Nuclear Medicinealso
Other radiologists in Mount Vernon
Clinicians with the same Medicare primary specialty in Mount Vernon, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Chicago, Pritzker School Of Medicine |
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1609863778 |
| 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