Karen Singer, PA
NPI 1477731628 · Medical Physician Assistant · Fountain Valley, CA
Karen Singer, PA is a Medical Physician Assistant provider in Fountain Valley, CA (NPI 1477731628).
Provider details
- NPI number
- 1477731628
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- PA16138 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
- 2008-02-08
- Last updated
- 2008-02-08
Frequently asked questions
- What is Karen Singer's NPI number?
- Karen Singer's National Provider Identifier (NPI) is 1477731628, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Singer's specialty?
- Karen Singer is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Singer located?
- Karen Singer's practice location on file with NPPES is 17100 Euclid St, Fountain Valley, CA 92708-4004.
- What is Karen Singer's phone number?
- The practice phone number listed in the NPPES registry for Karen Singer is (714) 966-7253.
- Is Karen Singer's NPI active?
- Yes — Karen Singer's NPI (1477731628) is active in the NPPES registry as of the last update on 2008-02-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.