Quick answers
- Which hospitals does Mark L. Passow work at?
- Medicare's official clinician data lists Mark L. Passow at 2 hospitals: Munson Healthcare Grayling Hospital and St Joe Mercy Hospital System Livonia. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark L. Passow see patients?
- Medicare's clinician data lists 8 practice locations, including Grayling, MI, Livonia, MI and Prudenville, MI. Call before your visit to confirm the address.
- What is Mark L. Passow's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Mark L. Passow accept Medicare assignment?
- Yes. Medicare's clinician data says Mark L. Passow 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.
- Does Mark L. Passow offer telehealth?
- Medicare's clinician data says Mark L. Passow offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark L. Passow?
- (231) 876-7476, as listed in official Medicare / NPI Registry data.
- What is Mark L. Passow's NPI number?
- 1871908897. 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 L. Passow works
Medicare's Facility Affiliation Data lists Mark L. Passow at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Munson Healthcare Grayling HospitalGrayling, MI · Acute Care Hospital · CCN 230058
- St Joe Mercy Hospital System LivoniaLivonia, MI · Acute Care Hospital · CCN 230002
Practice locations
Addresses where Mark L. Passow is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 1010 W N Down River Rd, Munson Healthcare Grayling Physician NetworGrayling, MI 49738 (231) 876‑7476
- 1100 E Michgan AveGrayling, MI 49738 (989) 348‑0594
- 1200 W N Down River Rd C, Milltown ClinicGrayling, MI 49738 (989) 344‑5910
- 1250 E Michigan Ave, Grayling Community Health CenterGrayling, MI 49738 (989) 348‑0550
- 1250 E Michigan Ave C, Munson Audiology GraylingGrayling, MI 49738 (231) 935‑6455
Group practices
Medicare enrollment lists Mark L. Passow as a member of these groups (CMS data updated 2026-10-02).
- Munson Healthcare Grayling66 clinicians in the group
- Nova Medica PLLC4 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Grayling
Clinicians with the same Medicare primary specialty in Grayling, MI — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1871908897 |
| 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