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

Dr. Matthew Tanis, DO

Individual provider Emergency Medicine Physician · NPI 1851654487

Dr. Matthew Tanis, DO practises Emergency Medicine in Grand Rapids, Michigan. Graduated from Michigan State University College of Osteopathic Medicine in 2012, 14 years ago. Practices with Certified Emergency Medicine Specialists PC, a 14-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
14
Trained at
Michigan State University College of Osteopathic Medicine
Licensed in
MI
In the registry since
2012
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

80 68th St SE
Grand Rapids, MI 49548-6980 Not confirmed with CMS for 12 years — call before visiting
Phone: (616) 486-5111
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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 5101020029 (MI)

Record details

NPI number1851654487
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 19, 2012
Last updated in NPPESOctober 10, 2014

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2012 (14 years in practice)
Group practice Certified Emergency Medicine Specialists Pc — 14 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 patients242
Services billed 402 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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 Certified Emergency Medicine Specialists PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 14 clinicians in the practice; 11 are shown here.

Other providers in Grand Rapids