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

Dr. Martha Brewer Koo, MD

Individual provider Mental Health Counselor · NPI 1497899728

Dr. Martha Brewer Koo, MD is a Mental Health Counselor in Hermosa Beach, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
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 Address checks out

2615 Pacific Coast Hwy #215
Hermosa Beach, CA 90254-2225
Phone: (310) 318-2566
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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 G78080 (CA)
Mental Health Counselor Taxonomy 101YM0800X · Licence G78080 (CA)

Record details

NPI number1497899728
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 19, 2007
Last updated in NPPESJune 23, 2022
Certification dateJune 23, 2022

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