Katherine Warner
NPI 1285916940 · Marriage & Family Therapist · San Mateo, CA
Katherine Warner is a Marriage & Family Therapist provider in San Mateo, CA (NPI 1285916940).
Provider details
- NPI number
- 1285916940
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 87393 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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
- 2011-09-19
- Last updated
- 2022-06-27
- Certified
- 2022-06-20
Frequently asked questions
- What is Katherine Warner's NPI number?
- Katherine Warner's National Provider Identifier (NPI) is 1285916940, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Warner's specialty?
- Katherine Warner is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Katherine Warner located?
- Katherine Warner's practice location on file with NPPES is 126 W 25th Ave, San Mateo, CA 94403-2208.
- What is Katherine Warner's phone number?
- The practice phone number listed in the NPPES registry for Katherine Warner is (650) 286-2090.
- Is Katherine Warner's NPI active?
- Yes — Katherine Warner's NPI (1285916940) is active in the NPPES registry as of the last update on 2022-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.