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

Karen D Nicholson, MD, MPH

Individual provider Public Health & General Preventive Medicine Physician · NPI 1679668297

Karen D Nicholson, MD, MPH is a Public Health & General Preventive Medicine Physician in San Marcos, 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.
MPH — Master of Public Health
A graduate degree in population health.

See every abbreviation used in this directory →

Practice location Address checks out

333 S Twin Oaks Valley Rd Cal State San Marcos Shcs
San Marcos, CA 92096-0001
Phone: (760) 750-4920
Fax: (760) 750-3181
Show map & directions

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

Specialties & licences

Public Health & General Preventive Medicine Physician (primary) Taxonomy 2083P0901X · Licence G74856 (CA)

Record details

NPI number1679668297
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD , MPH
Sole proprietorNo
NPI enumeratedOctober 3, 2006
Last updated in NPPESJuly 8, 2007

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