IndividualActive
Karen Alexander, PH.D
NPI 1841455003 · Psychologist · Vacaville, CA
Karen Alexander, PH.D is a Psychologist provider in Vacaville, CA (NPI 1841455003).
Provider details
- NPI number
- 1841455003
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D
- Sex
- Female
- Sole proprietor
- No
- License
- PSY16061 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(87/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
1600 California Dr
Vacaville, CA 95687
Phone: (707) 449-6582
Street-level locationGet directions
Mailing address
331 Kingsberry Cir
Vacaville, CA 95687-4305
Registry dates
- Enumerated
- 2008-07-26
- Last updated
- 2008-07-26
Frequently asked questions
- What is Karen Alexander's NPI number?
- Karen Alexander's National Provider Identifier (NPI) is 1841455003, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Alexander's specialty?
- Karen Alexander is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Karen Alexander located?
- Karen Alexander's practice location on file with NPPES is 1600 California Dr, Vacaville, CA 95687.
- What is Karen Alexander's phone number?
- The practice phone number listed in the NPPES registry for Karen Alexander is (707) 449-6582.
- Is Karen Alexander's NPI active?
- Yes — Karen Alexander's NPI (1841455003) is active in the NPPES registry as of the last update on 2008-07-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.