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

Frederick Timothy Guilford

Individual provider Allergy & Immunology (Internal Medicine) Physician · NPI 1548345770

Frederick Timothy Guilford is an Allergy & Immunology (Internal Medicine) Physician in Los Altos, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006

Practice location Address checks out

5050 El Camino Real #110
Los Altos, CA 94022
Phone: (650) 964-6700
Fax: (650) 964-3495
Show map & directions

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

Specialties & licences

Allergy & Immunology (Internal Medicine) Physician (primary) Taxonomy 207RA0201X · Licence C38149 (CA)

Record details

NPI number1548345770
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedOctober 26, 2006
Last updated in NPPESJuly 8, 2007
Mailing address5050 El Camino Real, 110, Los Altos, CA 94022