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Endocrinology

John Brunner, MD

Works at hospitals in Cadillac, MI · Grayling, MI · Manistee, MI … · Michigan

Summary

John Brunner, MD (Endocrinology) is listed by Medicare at 5 hospitals in Cadillac, MI, Grayling, MI and Manistee, MI and other places. NPI 1245236793. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about John Brunner, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

EndocrinologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
46Years since medical school (graduated 1980)
MaleGender (as listed)
Munson Medical CenterGroup practice

Quick answers

Which hospitals does John Brunner work at?
Medicare's official clinician data lists John Brunner at 5 hospitals: Munson Healthcare Cadillac Hospital, Munson Healthcare Grayling Hospital, Munson Healthcare Manistee Hospital, Munson Healthcare Otsego Memorial Hospital and Munson Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John Brunner see patients?
Medicare's clinician data lists 1 practice location in Traverse City, MI. Call before your visit to confirm the address.
What is John Brunner's specialty?
Medicare lists Endocrinology as the primary specialty.
Does John Brunner accept Medicare assignment?
Yes. Medicare's clinician data says John Brunner accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does John Brunner offer telehealth?
Medicare's clinician data says John Brunner offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for John Brunner?
(231) 935-2045, as listed in official Medicare / NPI Registry data.
What is John Brunner's NPI number?
1245236793. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John Brunner works

Medicare's Facility Affiliation Data lists John Brunner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where John Brunner is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists John Brunner as a member of this group (CMS data updated 2026-10-02).

  • Munson Medical Center384 clinicians in the group

Specialties

Find other Endocrinology doctors in Michigan →

Other endocrinologists in Michigan

Clinicians with the same Medicare primary specialty in Michigan — not a recommendation.

All endocrinologists in Michigan →

Clinician information

CredentialMD
Graduation year1980
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1245236793
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians