John Fay, MD
NPI 1104888783 · Family Medicine Physician · Los Alamos, NM
John Fay, MD is a Family Medicine Physician provider in Los Alamos, NM (NPI 1104888783).
Provider details
- NPI number
- 1104888783
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- DR44193 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2006-04-06
- Last updated
- 2012-01-17
Frequently asked questions
- What is John Fay's NPI number?
- John Fay's National Provider Identifier (NPI) is 1104888783, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Fay's specialty?
- John Fay is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Fay located?
- John Fay's practice location on file with NPPES is 3917 West Road, Los Alamos, NM 87544.
- What is John Fay's phone number?
- The practice phone number listed in the NPPES registry for John Fay is (505) 661-8900.
- Is John Fay's NPI active?
- Yes — John Fay's NPI (1104888783) is active in the NPPES registry as of the last update on 2012-01-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.