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

Dr. Karen Mary Johnson, MD

Individual provider Psychiatry Physician · NPI 1700942844

Dr. Karen Mary Johnson, MD is a Psychiatry Physician in Palo Alto, California. Practices as a sole proprietor. Licensed in California.

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

550 Hamilton Ave Ste 310
Palo Alto, CA 94301-2010
Phone: (650) 325-8680
Fax: (650) 325-2655
Show map & directions

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

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence G035164 (CA)

Record details

NPI number1700942844
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 30, 2006
Last updated in NPPESJuly 8, 2007

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