Quick answers
- Which hospitals does Patrick R. Brennan work at?
- Medicare's official clinician data lists Patrick R. Brennan at 3 hospitals: Ascension Providence Hospital, Southfield and Novi…, Trinity Health Ann Arbor Hospital and University of Michigan Health System. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Patrick R. Brennan see patients?
- Medicare's clinician data lists 2 practice locations, including South Lyon, MI and Big Spring, TX. Call before your visit to confirm the address.
- What is Patrick R. Brennan's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Patrick R. Brennan accept Medicare assignment?
- Yes. Medicare's clinician data says Patrick R. Brennan 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 Patrick R. Brennan offer telehealth?
- Medicare's clinician data says Patrick R. Brennan offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Patrick R. Brennan?
- (248) 437-2525, as listed in official Medicare / NPI Registry data.
- What is Patrick R. Brennan's NPI number?
- 1770582793. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Patrick R. Brennan works
Medicare's Facility Affiliation Data lists Patrick R. Brennan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension Providence Hospital, Southfield and Novi…Southfield, MI · Acute Care Hospital · CCN 230019
- Trinity Health Ann Arbor HospitalAnn Arbor, MI · Acute Care Hospital · CCN 230156
- University of Michigan Health SystemAnn Arbor, MI · Acute Care Hospital · CCN 230046
Practice locations
Addresses where Patrick R. Brennan is enrolled with Medicare (CMS data updated 2026-10-02).
- 22024 Pontiac TrlSouth Lyon, MI 48178 (248) 437‑2525
- 306 W 3rd StBig Spring, TX 79720 (432) 267‑3806
Group practices
Medicare enrollment lists Patrick R. Brennan as a member of these groups (CMS data updated 2026-10-02).
- Dora Roberts Rehabilitation Center106 clinicians in the group
- VMD Primary Providers Eastern Michigan PC61 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 | DO |
|---|---|
| Medical school | Michigan State University College Of Osteopathic Medicine |
| Graduation year | 2001 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1770582793 |
| 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