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

Martha B. Koo, MD, Ltd

Organization Adult Mental Health Clinic/Center · NPI 1487848404

Martha B. Koo, MD, Ltd is an Adult Mental Health Clinic/Center in Hermosa Beach, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
Ltd — Limited
A form of business registration, not a clinical qualification.

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Practice location Address checks out

2615 Pacific Coast Hwy 215
Hermosa Beach, CA 90254-2225
Phone: (310) 318-2566
Show map & directions

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

Specialties & licences

Adult Mental Health Clinic/Center (primary) Taxonomy 261QM0850X · Licence G78080 (CA)

Record details

NPI number1487848404
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Martha Koo — President · (310) 318-2566
NPI enumeratedSeptember 3, 2007
Last updated in NPPESSeptember 3, 2007
Mailing address515 Larsson St, Manhattan Beach, CA 90266-6734