Quick answers
- Which hospitals does Gary Montgomery work at?
- Medicare's official clinician data lists Gary Montgomery at 3 hospitals: Mackinac Straits Hospital and Health Center, Melissa Memorial Hospital and Sheridan Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gary Montgomery see patients?
- Medicare's clinician data lists 3 practice locations, including Holyoke, CO, Saint Ignace, MI and Sheridan, MI. Call before your visit to confirm the address.
- What is Gary Montgomery's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Gary Montgomery accept Medicare assignment?
- Yes. Medicare's clinician data says Gary Montgomery 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 Gary Montgomery?
- (906) 643-7999, as listed in official Medicare / NPI Registry data.
- What is Gary Montgomery's NPI number?
- 1104299601. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gary Montgomery works
Medicare's Facility Affiliation Data lists Gary Montgomery at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mackinac Straits Hospital and Health CenterSaint Ignace, MI · Critical Access Hospital · CCN 231306
- Melissa Memorial HospitalHolyoke, CO · Critical Access Hospital · CCN 061305
- Sheridan Community HospitalSheridan, MI · Critical Access Hospital · CCN 231312
Practice locations
Addresses where Gary Montgomery is enrolled with Medicare (CMS data updated 2026-10-02).
- 1001 E Johnson StHolyoke, CO 80734
- 1140 N State StSaint Ignace, MI 49781 (906) 643‑7999
- 301 N Main StSheridan, MI 48884 (989) 291‑3261
Group practices
Medicare enrollment lists Gary Montgomery as a member of these groups (CMS data updated 2026-10-02).
- Rural Physicians Group-Pannu PLLC147 clinicians in the group
- East Phillips County Hospital District17 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Holyoke
Clinicians with the same Medicare primary specialty in Holyoke, CO — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1104299601 |
| 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