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

William J Deaton, DO

Individual provider Emergency Medicine Physician · NPI 1336181981

William J Deaton, DO practises Emergency Medicine in Grand Haven, Michigan. Graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 2004, 22 years ago. Practices with Lake Michigan Observation Services PLLC, a 32-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Michigan, Minnesota and Wisconsin.

Years since qualifying
22
Trained at
Kansas City University of Med & Biosciences, College of Osteo Med
Licensed in
MI, MN, WI
In the registry since
2006
Specialties on file
3
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

13872 128th Ave
Grand Haven, MI 49417-9775
Phone: (616) 856-1264
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 98 Sherry Ave, Park Falls, WI 54552-1412 — (715) 762-2484

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 5101015965 (MI)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 13267 (WI)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 80964 (MN)

Record details

NPI number1336181981
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 11, 2006
Last updated in NPPESJanuary 16, 2026
Certification dateJanuary 16, 2026

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolKANSAS CITY UNIVERSITY OF MED & BIOSCIENCES, COLLEGE OF OSTEO MED
Graduated 2004 (22 years in practice)
Group practice Lake Michigan Observation Services Pllc — 32 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients189
Services billed 219 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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. Those with a page here are linked.

Colleagues at Lake Michigan Observation Services PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 32 clinicians in the practice; 12 are shown here.

Other providers in Grand Haven