John Brunner, M.D.
NPI 1245236793 · Endocrinology, Diabetes & Metabolism Physician · Traverse City, MI
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Brunner, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Traverse City, MI (NPI 1245236793).
Provider details
- NPI number
- 1245236793
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4301044585 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
21 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
352 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 140 | $92 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 83 | $63 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 37 | $77 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 31 | $128 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 26 | $115 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 333 | 95 |
| Hydrocortisone | 85 | 24 |
| Empagliflozinbrand: Jardiance | 56 | — |
| Methimazole | 49 | 15 |
| Testosterone | 48 | 12 |
| Prednisone | 47 | — |
| Metformin Hcl | 43 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$148 across 8 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-21
- Last updated
- 2023-02-28
- Certified
- 2023-02-28
Frequently asked questions
- What is John Brunner's NPI number?
- John Brunner's National Provider Identifier (NPI) is 1245236793, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Brunner's specialty?
- John Brunner is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is John Brunner located?
- John Brunner's practice location on file with NPPES is 1221 Sixth St Ste 208, Traverse City, MI 49684-2360.
- What is John Brunner's phone number?
- The practice phone number listed in the NPPES registry for John Brunner is (231) 935-2045.
- Does John Brunner accept Medicare?
- John Brunner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Brunner's NPI active?
- Yes — John Brunner's NPI (1245236793) is active in the NPPES registry as of the last update on 2023-02-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.