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

William Cosgrove, DO

Individual provider Anesthesiology Physician · NPI 1891743829

William Cosgrove, DO practises Anesthesiology in Royal Oak, Michigan. Graduated from Michigan State University College of Osteopathic Medicine in 1992, 34 years ago. Practices with Ambulatory Anesthesia Associates PC, a 28-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
34
Trained at
Michigan State University College of Osteopathic Medicine
Licensed in
MI
In the registry since
2006
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.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

3601 W 13 Mile Rd William Beaumont Hospital
Royal Oak, MI 48073-6712 Not confirmed with CMS for 19 years — call before visiting
Phone: (248) 458-0400
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 5101011702 (MI)

Record details

NPI number1891743829
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 4, 2006
Last updated in NPPESJuly 25, 2007

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 1992 (34 years in practice)
Group practice Ambulatory Anesthesia Associates Pc — 28 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients1,089
Services billed 1,350 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.

  • Promedica Monroe Regional Hospital Hospital · Monroe, MI

Colleagues at Ambulatory Anesthesia Associates PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 28 clinicians in the practice; 11 are shown here.

Other providers in Royal Oak