Martha B. Koo, M.D., Ltd.
NPI 1487848404 · Adult Mental Health Clinic/Center · Hermosa Beach, CA
Martha B. Koo, M.D., Ltd. is a Adult Mental Health Clinic/Center organization in Hermosa Beach, CA (NPI 1487848404).
Provider details
- NPI number
- 1487848404
- Entity type
- Organization
- Primary specialty
- Adult Mental Health Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Martha Koo, President(310) 318-2566
- License
- G78080 (CA)
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-09-03
- Last updated
- 2007-09-03
Frequently asked questions
- What is Martha B. Koo, M.D., Ltd.'s NPI number?
- Martha B. Koo, M.D., Ltd.'s National Provider Identifier (NPI) is 1487848404, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Martha B. Koo, M.D., Ltd.?
- Martha B. Koo, M.D., Ltd. is classified in the NPPES registry as Adult Mental Health Clinic/Center (Ambulatory Health Care Facilities).
- Where is Martha B. Koo, M.D., Ltd. located?
- Martha B. Koo, M.D., Ltd.'s practice location on file with NPPES is 2615 Pacific Coast Hwy, Hermosa Beach, CA 90254-2225.
- What is Martha B. Koo, M.D., Ltd.'s phone number?
- The practice phone number listed in the NPPES registry for Martha B. Koo, M.D., Ltd. is (310) 318-2566.
- Who is the authorized official for Martha B. Koo, M.D., Ltd.?
- The authorized official listed on Martha B. Koo, M.D., Ltd.'s NPPES record is Martha Koo, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Martha B. Koo, M.D., Ltd.'s NPI active?
- Yes — Martha B. Koo, M.D., Ltd.'s NPI (1487848404) is active in the NPPES registry as of the last update on 2007-09-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.