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

John Fonmin, MD

Individual provider Family Medicine Physician · NPI 1629147319

John Fonmin, MD is a Family Medicine Physician in Diamond Bar, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
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

2707 S Diamond Bar Blvd #104
Diamond Bar, CA 91765
Phone: (909) 594-8331
Fax: (909) 869-6631
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 A37367 (CA)

Record details

NPI number1629147319
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 7, 2006
Last updated in NPPESJuly 8, 2007
Mailing address2707 S Diamond Bar Blvd, 104, Diamond Bar, CA 91765

Other providers in Diamond Bar