John Gewin, M.D.
NPI 1427180785 · Psychiatry Physician · Huntsville, AL
Enrolled with Medicare as Order and Referring Only - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Gewin, M.D. is a Psychiatry Physician provider in Huntsville, AL (NPI 1427180785).
Provider details
- NPI number
- 1427180785
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 26301 (AL)
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
19 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
- 2007-03-12
- Last updated
- 2017-01-25
Frequently asked questions
- What is John Gewin's NPI number?
- John Gewin's National Provider Identifier (NPI) is 1427180785, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Gewin's specialty?
- John Gewin is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is John Gewin located?
- John Gewin's practice location on file with NPPES is 500 Markaview Rd Nw, Huntsville, AL 35805-3652.
- What is John Gewin's phone number?
- The practice phone number listed in the NPPES registry for John Gewin is (256) 535-3100.
- Does John Gewin accept Medicare?
- John Gewin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Gewin's NPI active?
- Yes — John Gewin's NPI (1427180785) is active in the NPPES registry as of the last update on 2017-01-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.