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

David C. Klonoff, MD, Inc

Organization Medical Specialty Clinic/Center · NPI 1174763866

David C. Klonoff, MD, Inc is a Medical Specialty Clinic/Center in Foster City, California. Licensed in California. Registered with an NPI since 2009.

Licensed in
CA
In the registry since
2009
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

1157 Chess Dr Ste 100
Foster City, CA 94404-1116
Phone: (650) 357-7140
Fax: (650) 349-6497
Show map & directions

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

Specialties & licences

Medical Specialty Clinic/Center (primary) Taxonomy 261QM2500X · Licence G35726 (CA)

Record details

NPI number1174763866
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official David Klonoff — President · (650) 697-4345
NPI enumeratedFebruary 20, 2009
Last updated in NPPESFebruary 20, 2009
Mailing address1720 El Camino Real, Ste 130, Burlingame, CA 94010-3226