Hayley Demarest
NPI 1952620874 · Marriage & Family Therapist · Grass Valley, CA
Hayley Demarest is a Marriage & Family Therapist provider in Grass Valley, CA (NPI 1952620874).
Provider details
- NPI number
- 1952620874
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
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
16 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2010-05-18
- Last updated
- 2019-07-29
Frequently asked questions
- What is Hayley Demarest's NPI number?
- Hayley Demarest's National Provider Identifier (NPI) is 1952620874, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hayley Demarest's specialty?
- Hayley Demarest is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Hayley Demarest located?
- Hayley Demarest's practice location on file with NPPES is 988 Mccourtney Rd, Grass Valley, CA 95949.
- What is Hayley Demarest's phone number?
- The practice phone number listed in the NPPES registry for Hayley Demarest is (530) 470-2444.
- Is Hayley Demarest's NPI active?
- Yes — Hayley Demarest's NPI (1952620874) is active in the NPPES registry as of the last update on 2019-07-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.