IndividualActive
John Diedrich, M.D.
NPI 1114924610 · Internal Medicine Physician · Petoskey, MI
John Diedrich, M.D. is a Internal Medicine Physician provider in Petoskey, MI (NPI 1114924610).
Provider details
- NPI number
- 1114924610
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4301044782 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
Practice location
560 W Mitchell St
Petoskey, MI 49770-2278
Phone: (231) 487-2460
Fax: (231) 487-6596
Street-level locationGet directions
Mailing address
560 W Mitchell St
Petoskey, MI 49770-2278
Registry dates
- Enumerated
- 2005-06-30
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Diedrich's NPI number?
- John Diedrich's National Provider Identifier (NPI) is 1114924610, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Diedrich's specialty?
- John Diedrich is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Diedrich located?
- John Diedrich's practice location on file with NPPES is 560 W Mitchell St, Petoskey, MI 49770-2278.
- What is John Diedrich's phone number?
- The practice phone number listed in the NPPES registry for John Diedrich is (231) 487-2460.
- Is John Diedrich's NPI active?
- Yes — John Diedrich's NPI (1114924610) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.