Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mr. John Matthew Fay, MD

Individual provider Family Medicine Physician · NPI 1104888783

Mr. John Matthew Fay, MD is a Family Medicine Physician in Los Alamos, New Mexico. Licensed in Colorado and New Mexico. Registered with an NPI since 2006.

Licensed in
CO, NM
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

3917 W Rd Ste A Mannm
Los Alamos, NM 87544
Phone: (505) 661-8900
Fax: (505) 661-8916
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence MD20060672 (NM)
Family Medicine Physician Taxonomy 207Q00000X · Licence DR44193 (CO)

Record details

NPI number1104888783
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 6, 2006
Last updated in NPPESJanuary 17, 2012

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