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

Michael J Dejong, MD

Individual provider Surgery Physician · NPI 1609857143

Michael J Dejong, MD practises General Surgery in Wyoming, Michigan. Graduated from Michigan State University College of Human Medicine in 1993, 33 years ago. Practices with Advantage Health/Saint Mary's Medical Group, a 494-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
33
Trained at
Michigan State University College of Human Medicine
Licensed in
MI
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1045 Gezon Pkwy SW
Wyoming, MI 49509
Phone: (616) 456-5311
Fax: (616) 456-7955
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 4301059493 (MI)

Record details

NPI number1609857143
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 10, 2005
Last updated in NPPESJuly 13, 2018

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF HUMAN MEDICINE
Graduated 1993 (33 years in practice)
Group practice Advantage Health/Saint Mary'S Medical Group — 494 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 1–10 times
Hernia repair - groin (open) 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients92
Services billed 176 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

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 Advantage Health/Saint Mary's Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 494 clinicians in the practice; 12 are shown here.

Other providers in Wyoming