What is Susan Fan's NPI number?

Susan Fan's National Provider Identifier (NPI) is 1639026669, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Susan Fan's specialty?

Susan Fan is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).

Where is Susan Fan located?

Susan Fan's practice location on file with NPPES is 4984 El Camino Real Ste 208, Los Altos, CA 94022-1433.

What is Susan Fan's phone number?

The practice phone number listed in the NPPES registry for Susan Fan is (650) 297-3400.

Is Susan Fan's NPI active?

Yes — Susan Fan's NPI (1639026669) is active in the NPPES registry as of the last update on 2026-03-10.

IndividualActive

Susan Fan, AMFT

NPI 1639026669 · Marriage & Family Therapist · Los Altos, CA

Susan Fan, AMFT is a Marriage & Family Therapist provider in Los Altos, CA (NPI 1639026669).

Provider details

NPI number: 1639026669
Entity type: Individual
Primary specialty: Marriage & Family TherapistBehavioral Health & Social Service Providers
Credential: AMFT
Sex: Female
Sole proprietor: Yes
License: 124759 (CA)

Specialties & taxonomies

Marriage & Family TherapistPrimary106H00000XLicense 124759 (CA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(53/100 index)

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

4984 El Camino Real Ste 208

Los Altos, CA 94022-1433

Phone: (650) 297-3400

Fax: (650) 897-1005

Approximate (ZIP-level) locationGet directions

More CA providers

Mailing address

Po Box 60847

Palo Alto, CA 94306-0847

Enumerated: 2026-03-10
Last updated: 2026-03-10
Certified: 2026-03-10

Frequently asked questions

What is Susan Fan's NPI number?: Susan Fan's National Provider Identifier (NPI) is 1639026669, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Susan Fan's specialty?: Susan Fan is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
Where is Susan Fan located?: Susan Fan's practice location on file with NPPES is 4984 El Camino Real Ste 208, Los Altos, CA 94022-1433.
What is Susan Fan's phone number?: The practice phone number listed in the NPPES registry for Susan Fan is (650) 297-3400.
Is Susan Fan's NPI active?: Yes — Susan Fan's NPI (1639026669) is active in the NPPES registry as of the last update on 2026-03-10.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.