Quick answers
- Where does John M. Marshall see patients?
- Medicare's clinician data lists 1 practice location in Southfield, MI. Call before your visit to confirm the address.
- What is John M. Marshall's specialty?
- Medicare lists Physical Medicine and Rehabilitation as the primary specialty.
- Does John M. Marshall accept Medicare assignment?
- Yes. Medicare's clinician data says John M. Marshall 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 John M. Marshall offer telehealth?
- Medicare's clinician data says John M. Marshall offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John M. Marshall?
- (248) 351-6300, as listed in official Medicare / NPI Registry data.
- What is John M. Marshall's NPI number?
- 1174515381. 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 John M. Marshall is enrolled with Medicare (CMS data updated 2026-10-02).
- 29275 Northwestern Hwy, Suite 100Southfield, MI 48034 (248) 351‑6300
Group practices
Medicare enrollment lists John M. Marshall as a member of this group (CMS data updated 2026-10-02).
- University Neurosurgical Associates PC35 clinicians in the group
Specialties
Find other Physical Medicine and Rehabilitation doctors in Michigan →
Other rehabilitation doctors in Southfield
Clinicians with the same Medicare primary specialty in Southfield, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Louisville School Of Medicine |
| Graduation year | 1987 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1174515381 |
| 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