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

John Carr, MD

Individual provider Family Medicine Physician · NPI 1821471509

John Carr, MD is registered under Family Practice in Rockford, Michigan. Graduated from University of Louisville School of Medicine in 2015, 11 years ago. Practices with Advantage Health/Saint Mary's Medical Group, a 494-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
11
Trained at
University of Louisville School of Medicine
Licensed in
MI
In the registry since
2015
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

6050 Northland Dr NE Ste 200
Rockford, MI 49341
Phone: (616) 685-8350
Fax: (616) 363-8870
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 300 Lafayette Ave Se Ste 4000, Grand Rapids, MI 49503 — (616) 685-6741
  • 300 Lafayette Ave Se Ste 4000, Grand Rapids, MI 49503 — (616) 685-6741

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 4301108246 (MI)

Record details

NPI number1821471509
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 30, 2015
Last updated in NPPESSeptember 20, 2018

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF LOUISVILLE SCHOOL OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Advantage Health/Saint Mary'S Medical Group — 494 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 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.

Melanoma (skin cancer) excision 1–10 times
Removal of skin lesions 1–10 times
Removal or shaving of skin growth 1–10 times
Skin biopsy 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 patients163
Services billed 388 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 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 Rockford