John Frownfelter, MD
NPI 1548268626 · Internal Medicine Physician · Southfield, MI
John Frownfelter, MD is a Internal Medicine Physician provider in Southfield, MI (NPI 1548268626).
Provider details
- NPI number
- 1548268626
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- 4301061866 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2005-07-12
- Last updated
- 2023-03-07
Frequently asked questions
- What is John Frownfelter's NPI number?
- John Frownfelter's National Provider Identifier (NPI) is 1548268626, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Frownfelter's specialty?
- John Frownfelter is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Frownfelter located?
- John Frownfelter's practice location on file with NPPES is 16001 W 9 Mile Rd, Southfield, MI 48075-4818.
- What is John Frownfelter's phone number?
- The practice phone number listed in the NPPES registry for John Frownfelter is (248) 849-3152.
- Is John Frownfelter's NPI active?
- Yes — John Frownfelter's NPI (1548268626) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.