OrganizationActive
Cynthia W Chao D O a Professional Corporation
NPI 1164800488 · Obstetrics & Gynecology Physician · Los Alamitos, CA
Provider details
- NPI number
- 1164800488
- Entity type
- Organization
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Cynthia Chao, Doctor(562) 961-3137
- License
- 20A7343 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Managed Care Organizations
Profile Score
Established profile(74/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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
10861 Cherry St Ste 109
Los Alamitos, CA 90720-5400
Phone: (562) 961-3137
Fax: (562) 961-3196
Street-level locationGet directions
Mailing address
1540 W Averill Park Dr
San Pedro, CA 90732-3924
Other names (DBA / former)
- Former legal business name
- Cynthia W. Chao D O a Professional Corporation
Registry dates
- Enumerated
- 2015-05-07
- Last updated
- 2024-04-20
- Certified
- 2024-04-20
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.