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

Individual provider Emergency Medicine Physician · NPI 1356661342

Dr. Joshua Dean Mastenbrook, MD practises Emergency Medicine in Kalamazoo, Michigan. Graduated from Michigan State University College of Human Medicine in 2010, 16 years ago. Practices with Vituity-Michigan Health Services PC, a 55-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
16
Trained at
Michigan State University College of Human Medicine
Licensed in
MI
In the registry since
2010
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

1521 Gull Rd
Kalamazoo, MI 49048-1640
Phone: (269) 226-7000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 601 John St, Kalamazoo, MI 49007-5341 — (269) 343-3900

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 4301096214 (MI)

Record details

NPI number1356661342
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 2, 2010
Last updated in NPPESNovember 19, 2018

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF HUMAN MEDICINE
Graduated 2010 (16 years in practice)
Group practice Vituity-Michigan Health Services Pc — 55 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 patients110
Services billed 183 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 Vituity-Michigan Health Services PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 55 clinicians in the practice; 12 are shown here.

Other providers in Kalamazoo