Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Steven John Tenelshof, MD

Individual provider Emergency Medicine Physician · NPI 1801919303

Dr. Steven John Tenelshof, MD practises Emergency Medicine in Muskegon, Michigan. Graduated from Wayne State University School of Medicine in 2004, 22 years ago. Practices with Grand River Emergency Medical Group PLC, a 42-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
22
Trained at
Wayne State University School of Medicine
Licensed in
MI
In the registry since
2007
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

1700 Clinton St Emergency Dept Attn: Peggy Anderson
Muskegon, MI 49442-5502 Not confirmed with CMS for 16 years — call before visiting
Phone: (231) 728-4936
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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 4301084258 (MI)

Record details

NPI number1801919303
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 9, 2007
Last updated in NPPESAugust 19, 2010

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolWAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice Grand River Emergency Medical Group Plc — 42 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 patients167
Services billed 229 a service is one billed item, such as a visit, a test or a procedure
Average patient age66

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 Grand River Emergency Medical Group PLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 42 clinicians in the practice; 12 are shown here.

Other providers in Muskegon