Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Brett Holmes, DO

Individual provider Internal Medicine Physician · NPI 1306284666

Brett Holmes, DO practises Internal Medicine in Royal Oak, Michigan. Graduated from Michigan State University College of Osteopathic Medicine in 2013, 13 years ago. Practices with Beaumont Medical Group Hospital Based Services, a 572-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
13
Trained at
Michigan State University College of Osteopathic Medicine
Licensed in
MI
In the registry since
2013
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

3601 W 13 Mile Rd
Royal Oak, MI 48073-6712
Phone: (248) 551-3000
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 5101020318 (MI)

Record details

NPI number1306284666
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 10, 2013
Last updated in NPPESOctober 21, 2020
Certification dateOctober 21, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2013 (13 years in practice)
Group practice Beaumont Medical Group Hospital Based Services — 572 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients198
Services billed 756 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Beaumont Hospital Royal Oak Hospital · Royal Oak, MI

Colleagues at Beaumont Medical Group Hospital Based Services

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 572 clinicians in the practice; 12 are shown here.

Other providers in Royal Oak