Alicia Grefenson, PSYD, LP
NPI 1073707451 · Clinical Psychologist · Walnut Creek, CA
Alicia Grefenson, PSYD, LP is a Clinical Psychologist provider in Walnut Creek, CA (NPI 1073707451).
Provider details
- NPI number
- 1073707451
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSYD, LP
- Sex
- Female
- Sole proprietor
- No
- License
- 31315 (CA)
Specialties & taxonomies
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
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
- 2007-08-29
- Last updated
- 2025-07-14
- Certified
- 2025-07-14
Frequently asked questions
- What is Alicia Grefenson's NPI number?
- Alicia Grefenson's National Provider Identifier (NPI) is 1073707451, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alicia Grefenson's specialty?
- Alicia Grefenson is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Alicia Grefenson located?
- Alicia Grefenson's practice location on file with NPPES is 2970 Camino Diablo Ste 300, Walnut Creek, CA 94597-4001.
- What is Alicia Grefenson's phone number?
- The practice phone number listed in the NPPES registry for Alicia Grefenson is (925) 282-1778.
- Is Alicia Grefenson's NPI active?
- Yes — Alicia Grefenson's NPI (1073707451) is active in the NPPES registry as of the last update on 2025-07-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.