Quick answers
- Which hospitals does Matthew Flannigan work at?
- Medicare's official clinician data lists Matthew Flannigan at 5 hospitals: Corewell Health Pennock Hospital, Corewell Health Reed City Hospital, ProMedica Charles and Virginia Hickman Hospital, Spectrum Health and Spectrum Health United Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Matthew Flannigan see patients?
- Medicare's clinician data lists 4 practice locations, including Grand Rapids, MI, Dowagiac, MI and Greenville, MI. Call before your visit to confirm the address.
- What is Matthew Flannigan's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Matthew Flannigan accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew Flannigan 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 Flannigan?
- (616) 391-1730, as listed in official Medicare / NPI Registry data.
- What is Matthew Flannigan's NPI number?
- 1821109638. 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 Flannigan works
Medicare's Facility Affiliation Data lists Matthew Flannigan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Corewell Health Pennock HospitalHastings, MI · Critical Access Hospital · CCN 231339
- Corewell Health Reed City HospitalReed City, MI · Critical Access Hospital · CCN 231323
- ProMedica Charles and Virginia Hickman HospitalAdrian, MI · Acute Care Hospital · CCN 230005
- Spectrum HealthGrand Rapids, MI · Acute Care Hospital · CCN 230038
- Spectrum Health United HospitalGreenville, MI · Acute Care Hospital · CCN 230035
Practice locations
Addresses where Matthew Flannigan is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Michigan Ave NEGrand Rapids, MI 49503 (616) 391‑1730
- 1840 Wealthy St SEGrand Rapids, MI 49506 (616) 391‑1730
- 420 W High StDowagiac, MI 49047 (269) 782‑8681
- 615 S Bower StGreenville, MI 48838 (866) 542‑7910
Group practices
Medicare enrollment lists Matthew Flannigan as a member of these groups (CMS data updated 2026-10-02).
- Ecs Western Michigan PC201 clinicians in the group
- Visionary Medical Services, PC63 clinicians in the group
- Vituity-Michigan Health Services PC56 clinicians in the group
- Sound Physicians Emergency Medicine of Michigan PLLC11 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Grand Rapids
Clinicians with the same Medicare primary specialty in Grand Rapids, MI — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Michigan State University College Of Human Medicine |
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821109638 |
| 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