Quick answers
- Which hospitals does Michael J. Neumann work at?
- Medicare's official clinician data lists Michael J. Neumann at 1 hospital: Ascension Genesys Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael J. Neumann see patients?
- Medicare's clinician data lists 3 practice locations, including Flint, MI and Grand Blanc, MI. Call before your visit to confirm the address.
- What is Michael J. Neumann's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Michael J. Neumann accept Medicare assignment?
- Yes. Medicare's clinician data says Michael J. Neumann 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 J. Neumann?
- (810) 232-3522, as listed in official Medicare / NPI Registry data.
- What is Michael J. Neumann's NPI number?
- 1578549325. 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 J. Neumann works
Medicare's Facility Affiliation Data lists Michael J. Neumann at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension Genesys HospitalGrand Blanc, MI · Acute Care Hospital · CCN 230197
Practice locations
Addresses where Michael J. Neumann is enrolled with Medicare (CMS data updated 2026-10-02).
- 420 S Saginaw StFlint, MI 48502 (810) 232‑3522
- 600 Health Park Blvd, Suite DGrand Blanc, MI 48439
- 8275 Holly Rd, Suite 2Grand Blanc, MI 48439 (810) 603‑8400
Group practices
Medicare enrollment lists Michael J. Neumann as a member of these groups (CMS data updated 2026-10-02).
- Henry Ford Health Genesys Hospital84 clinicians in the group
- Flint Gastroenterology Associates PC11 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Flint
Clinicians with the same Medicare primary specialty in Flint, MI — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Michigan State University College Of Osteopathic Medicine |
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578549325 |
| 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