Sandra Harwin, PHD
NPI 1669025771 · Psychologist · Calabasas, CA
Sandra Harwin, PHD is a Psychologist provider in Calabasas, CA (NPI 1669025771).
Provider details
- NPI number
- 1669025771
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSY23651 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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
- 2019-07-17
- Last updated
- 2019-07-17
Frequently asked questions
- What is Sandra Harwin's NPI number?
- Sandra Harwin's National Provider Identifier (NPI) is 1669025771, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sandra Harwin's specialty?
- Sandra Harwin is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Sandra Harwin located?
- Sandra Harwin's practice location on file with NPPES is 23250 Park Corniche, Calabasas, CA 91302-2819.
- What is Sandra Harwin's phone number?
- The practice phone number listed in the NPPES registry for Sandra Harwin is (818) 321-6780.
- Is Sandra Harwin's NPI active?
- Yes — Sandra Harwin's NPI (1669025771) is active in the NPPES registry as of the last update on 2019-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.