Quick answers
- Which hospitals does Mark Zawisa work at?
- Medicare's official clinician data lists Mark Zawisa at 2 hospitals: Trinity Health Ann Arbor Hospital and Trinity Health Livingston Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark Zawisa see patients?
- Medicare's clinician data lists 2 practice locations, including South Lyon, MI and Brighton, MI. Call before your visit to confirm the address.
- What is Mark Zawisa's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Mark Zawisa accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Zawisa 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 Mark Zawisa?
- (734) 747-6766, as listed in official Medicare / NPI Registry data.
- What is Mark Zawisa's NPI number?
- 1386612406. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark Zawisa works
Medicare's Facility Affiliation Data lists Mark Zawisa at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Trinity Health Ann Arbor HospitalAnn Arbor, MI · Acute Care Hospital · CCN 230156
- Trinity Health Livingston HospitalBrighton, MI · Acute Care Hospital · CCN 230069
Practice locations
Addresses where Mark Zawisa is enrolled with Medicare (CMS data updated 2026-10-02).
- 23200 Pontiac Trl, Suite 100South Lyon, MI 48178 (734) 747‑6766
- 7575 Grand River Rd, Suite 210Brighton, MI 48114 (810) 844‑7950
Group practices
Medicare enrollment lists Mark Zawisa as a member of this group (CMS data updated 2026-10-02).
- Iha Health Services Corporation1,168 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in South Lyon
Clinicians with the same Medicare primary specialty in South Lyon, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Michigan Medical School |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1386612406 |
| 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