Quick answers
- Where does Michael H. Oster see patients?
- Medicare's clinician data lists 2 practice locations, including Madison, WI and Kenosha, WI. Call before your visit to confirm the address.
- What is Michael H. Oster's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Michael H. Oster accept Medicare assignment?
- Yes. Medicare's clinician data says Michael H. Oster 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 H. Oster?
- (608) 807-1428, as listed in official Medicare / NPI Registry data.
- What is Michael H. Oster's NPI number?
- 1356333991. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Michael H. Oster is enrolled with Medicare (CMS data updated 2026-10-02).
- 210 E Olin AveMadison, WI 53713 (608) 807‑1428
- 3825 39th Ave, Suite 120Kenosha, WI 53144 (262) 946‑5752
Group practices
Medicare enrollment lists Michael H. Oster as a member of this group (CMS data updated 2026-10-02).
- Addiction Services and Pharmacotherapy SC4 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Madison
Clinicians with the same Medicare primary specialty in Madison, WI — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Midwestern University, Chicago College Of Osteopathic Med |
| Graduation year | 1978 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1356333991 |
| 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
- 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