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

Dr. Michael Walter Fill, DO

Individual provider Emergency Medicine Physician · NPI 1487866976

Dr. Michael Walter Fill, DO practises Internal Medicine in Farmington Hills, Michigan. Graduated from Lake Erie College of Osteopathic Medicine, Erie in 2005, 21 years ago. Practices with Independent Observation Physicians PLLC, a 136-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
21
Trained at
Lake Erie College of Osteopathic Medicine, Erie
Licensed in
MI
In the registry since
2007
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

28050 Grand River Ave
Farmington Hills, MI 48336-5919 Not confirmed with CMS for 19 years — call before visiting
Phone: (248) 471-8000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 5101016586 (MI)

Record details

NPI number1487866976
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedMay 4, 2007
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesEMERGENCY MEDICINE
Medical schoolLAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE
Graduated 2005 (21 years in practice)
Group practice Independent Observation Physicians Pllc — 136 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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 patients561
Services billed 876 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

Colleagues at Independent Observation Physicians PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 136 clinicians in the practice; 12 are shown here.

Other providers in Farmington Hills