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

Dr. Karen Yen Quan, MD, MS

Individual provider Psychiatry Physician · NPI 1023713450

Dr. Karen Yen Quan, MD, MS is a Psychiatry Physician in Orange, California. Works from 3 locations. Licensed in California.

Licensed in
CA
In the registry since
2023
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MS — Master of Science
A graduate science degree.

See every abbreviation used in this directory →

Practice location Address checks out

101 The City Dr S Bldg 3
Orange, CA 92868-3201
Phone: (714) 456-5770
Show map & directions

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

Additional practice locations (2)

  • 3800 W Chapman Ave Ste 500, Orange, CA 92868-1638 — (714) 456-5770
  • 800 N Main St, Santa Ana, CA 92701-3576 — (714) 456-5770

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence A199635 (CA)

Record details

NPI number1023713450
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD , MS
Sole proprietorNo
NPI enumeratedApril 4, 2023
Last updated in NPPESMay 27, 2026
Certification dateMay 27, 2026

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