Nancy Yance Chavez
NPI 1689559437 · Marriage & Family Therapist · Millbrae, CA
Nancy Yance Chavez is a Marriage & Family Therapist provider in Millbrae, CA (NPI 1689559437).
Provider details
- NPI number
- 1689559437
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 155680 (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
Under 1 yr in 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
- 2025-08-11
- Last updated
- 2025-08-17
- Certified
- 2025-08-17
Frequently asked questions
- What is Nancy Yance Chavez's NPI number?
- Nancy Yance Chavez's National Provider Identifier (NPI) is 1689559437, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Yance Chavez's specialty?
- Nancy Yance Chavez is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Nancy Yance Chavez located?
- Nancy Yance Chavez's practice location on file with NPPES is 400 Murchison Dr, Millbrae, CA 94030-3024.
- What is Nancy Yance Chavez's phone number?
- The practice phone number listed in the NPPES registry for Nancy Yance Chavez is (650) 558-2565.
- Is Nancy Yance Chavez's NPI active?
- Yes — Nancy Yance Chavez's NPI (1689559437) is active in the NPPES registry as of the last update on 2025-08-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.