Quick answers
- Which hospitals does Brett A. Holmes work at?
- Medicare's official clinician data lists Brett A. Holmes at 1 hospital: Beaumont Hospital Royal Oak. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Brett A. Holmes see patients?
- Medicare's clinician data lists 6 practice locations, including Berkley, MI, Royal Oak, MI and Troy, MI. Call before your visit to confirm the address.
- What is Brett A. Holmes's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Brett A. Holmes accept Medicare assignment?
- Yes. Medicare's clinician data says Brett A. Holmes 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 Brett A. Holmes?
- (248) 551-0615, as listed in official Medicare / NPI Registry data.
- What is Brett A. Holmes's NPI number?
- 1306284666. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Brett A. Holmes works
Medicare's Facility Affiliation Data lists Brett A. Holmes at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Beaumont Hospital Royal OakRoyal Oak, MI · Acute Care Hospital · CCN 230130
Practice locations
Addresses where Brett A. Holmes is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1949 W 12 Mile RdBerkley, MI 48072 (248) 551‑0615
- 3601 W 13 Mile RdRoyal Oak, MI 48073
- 3601 W 13 Mile Rd Ec, Beaumont Emergency Services RoRoyal Oak, MI 48073 (248) 898‑0575
- 44201 Dequindre RdTroy, MI 48085
- 44201 Dequindre Rd Ec, Beaumont Emergency Services TrTroy, MI 48085 (248) 964‑5111
Group practices
Medicare enrollment lists Brett A. Holmes as a member of this group (CMS data updated 2026-10-02).
- Beaumont Medical Group Hospital Based Services584 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Berkley
Clinicians with the same Medicare primary specialty in Berkley, MI — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Michigan State University College Of Osteopathic Medicine |
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1306284666 |
| 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