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

Dr. Diane Marie Highum, MD

Individual provider Psychiatry Physician · NPI 1396868386

Dr. Diane Marie Highum, MD is a Psychiatry Physician in Costa Mesa, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
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

301 Victoria St
Costa Mesa, CA 92627-1995
Phone: (949) 642-2734
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence G68947 (CA)

Record details

NPI number1396868386
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 6, 2007
Last updated in NPPESAugust 29, 2017

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