Quick answers
- Which hospitals does Matthew I. Gembala work at?
- Medicare's official clinician data lists Matthew I. Gembala at 5 hospitals: Flagstaff Medical Center, Havasu Regional Medical Center, Little Colorado Medical Center, Valley View Medical Center and Western Arizona Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Matthew I. Gembala see patients?
- Medicare's clinician data lists 1 practice location in Cottonwood, AZ. Call before your visit to confirm the address.
- What is Matthew I. Gembala's specialty?
- Medicare lists Nephrology as the primary specialty, and also Internal Medicine.
- Does Matthew I. Gembala accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew I. Gembala 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 Matthew I. Gembala?
- (928) 649-7997, as listed in official Medicare / NPI Registry data.
- What is Matthew I. Gembala's NPI number?
- 1114950185. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Matthew I. Gembala works
Medicare's Facility Affiliation Data lists Matthew I. Gembala 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
- Havasu Regional Medical CenterLake Havasu City, AZ · Acute Care Hospital · CCN 030069
- Little Colorado Medical CenterWinslow, AZ · Critical Access Hospital · CCN 031311
- Valley View Medical CenterFort Mohave, AZ · Acute Care Hospital · CCN 030117
- Western Arizona Regional Medical CenterBullhead City, AZ · Acute Care Hospital · CCN 030101
Practice locations
Addresses where Matthew I. Gembala is enrolled with Medicare (CMS data updated 2026-10-02).
- 451 S Calvary WayCottonwood, AZ 86326 (928) 649‑7997
Group practices
Medicare enrollment lists Matthew I. Gembala as a member of this group (CMS data updated 2026-10-02).
- Akdhc LLC129 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Cottonwood
Clinicians with the same Medicare primary specialty in Cottonwood, AZ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Arizona College Of Medicine |
| Graduation year | 2003 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1114950185 |
| 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