Quick answers
- Which hospitals does Michael A. Stack work at?
- Medicare's official clinician data lists Michael A. Stack at 4 hospitals: MyMichigan Medical Center Alma, MyMichigan Medical Center Clare, MyMichigan Medical Center Midland and University of Michigan Health-Sparrow Carson. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael A. Stack see patients?
- Medicare's clinician data lists 2 practice locations, including Ithaca, MI and Alma, MI. Call before your visit to confirm the address.
- What is Michael A. Stack's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Michael A. Stack accept Medicare assignment?
- Yes. Medicare's clinician data says Michael A. Stack 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 Michael A. Stack?
- (989) 875-5111, as listed in official Medicare / NPI Registry data.
- What is Michael A. Stack's NPI number?
- 1932146685. 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 A. Stack works
Medicare's Facility Affiliation Data lists Michael A. Stack at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- MyMichigan Medical Center AlmaAlma, MI · Acute Care Hospital · CCN 230030
- MyMichigan Medical Center ClareClare, MI · Acute Care Hospital · CCN 230180
- MyMichigan Medical Center MidlandMidland, MI · Acute Care Hospital · CCN 230222
- University of Michigan Health-Sparrow CarsonCarson City, MI · Acute Care Hospital · CCN 230208
Practice locations
Addresses where Michael A. Stack is enrolled with Medicare (CMS data updated 2026-10-02).
- 121 N Pine River StIthaca, MI 48847 (989) 875‑5111
- 200 E Warwick DrAlma, MI 48801 (989) 463‑5876
Group practices
Medicare enrollment lists Michael A. Stack as a member of this group (CMS data updated 2026-10-02).
- MyMichigan Medical Center Alma145 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Ithaca
Clinicians with the same Medicare primary specialty in Ithaca, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wayne State University School Of Medicine |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1932146685 |
| 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