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

John Thore Duhn, DO

Individual provider Family Medicine Physician · NPI 1821043613

John Thore Duhn, DO is registered under Family Practice in Grand Rapids, Michigan. Graduated from Michigan State University College of Osteopathic Medicine in 2003, 23 years ago. Practices with Vpa PC, a 182-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Michigan.

Years since qualifying
23
Trained at
Michigan State University College of Osteopathic Medicine
Licensed in
MI
In the registry since
2006
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

3355 Eagle Park Dr NE Ste 103
Grand Rapids, MI 49525-7004
Phone: (616) 942-7400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 4868-2 Lake Michigan Dr, Allendale, MI 49401-7415 — (616) 391-2800

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 5101015743 (MI)

Record details

NPI number1821043613
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 23, 2006
Last updated in NPPESApril 23, 2024
Certification dateApril 23, 2024

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2003 (23 years in practice)
Group practice Vpa Pc — 182 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients181
Services billed 446 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

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.

  • Mercy Health Saint Mary'S Hospital · Grand Rapids, MI
  • Spectrum Health Hospital · Grand Rapids, MI · listed as Spectrum Health Hospital
  • Mary Free Bed At Home, Llc Home health agency · Grand Rapids, MI
  • Alpine Care Home Health Home health agency · Grand Rapids, MI
  • Corewell Health Visiting Nurse Association Home health agency · Grand Rapids, MI
  • Elara Caring Home health agency · Jackson, MI
  • Interim Healthcare Of West Michigan Home health agency · Grand Rapids, MI

Colleagues at Vpa PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 182 clinicians in the practice; 12 are shown here.

Other providers in Grand Rapids