What is Wen Chang's NPI number?

Wen Chang's National Provider Identifier (NPI) is 1508546540, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Wen Chang's specialty?

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

Where is Wen Chang located?

Wen Chang's practice location on file with NPPES is 300 S San Antonio Rd, Los Altos, CA 94022-3614.

What is Wen Chang's phone number?

The practice phone number listed in the NPPES registry for Wen Chang is (408) 215-8682.

Is Wen Chang's NPI active?

Yes — Wen Chang's NPI (1508546540) is active in the NPPES registry as of the last update on 2026-03-18.

IndividualActive

Wen Chang, LMFT

NPI 1508546540 · Marriage & Family Therapist · Los Altos, CA

Wen Chang, LMFT is a Marriage & Family Therapist provider in Los Altos, CA (NPI 1508546540).

Provider details

NPI number: 1508546540
Entity type: Individual
Primary specialty: Marriage & Family TherapistBehavioral Health & Social Service Providers
Credential: LMFT
Sex: Male
Sole proprietor: No
License: 162371 (CA)

Specialties & taxonomies

Marriage & Family TherapistPrimary106H00000XLicense 162371 (CA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(58/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
2 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

300 S San Antonio Rd

Los Altos, CA 94022-3614

Phone: (408) 215-8682

Street-level locationGet directions

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Mailing address