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

Individual provider Internal Medicine Physician · NPI 1861727950

Dr. Catherine Koss, MD is an Internal Medicine Physician in San Francisco, California. Works from 2 locations. Licensed in California.

Licensed in
CA
In the registry since
2009
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Partly verified

Some contact details are missing from the federal record.

UCSF Dept OF Medicine 505 Parnassus Avenue
San Francisco, CA 94143-0001
Phone: (415) 476-1528
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Additional practice locations (1)

  • 995 Potrero Ave., San Francisco, CA 94110-3518 — (628) 206-2400

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence A115493 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A115493 (CA)

Record details

NPI number1861727950
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 8, 2009
Last updated in NPPESMay 13, 2026
Certification dateMay 13, 2026

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