William Trang
NPI 1740026079 · Marriage & Family Therapist · Richmond, CA
William Trang is a Marriage & Family Therapist provider in Richmond, CA (NPI 1740026079).
Provider details
- NPI number
- 1740026079
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 158535 (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
1 yr in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 1038 Post StSan Francisco, CA 94109-5603Phone: (415) 775-2636
Registry dates
- Enumerated
- 2024-07-05
- Last updated
- 2025-10-22
- Certified
- 2025-10-22
Frequently asked questions
- What is William Trang's NPI number?
- William Trang's National Provider Identifier (NPI) is 1740026079, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Trang's specialty?
- William Trang is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is William Trang located?
- William Trang's practice location on file with NPPES is 3919 Macdonald Ave, Richmond, CA 94805-2229.
- What is William Trang's phone number?
- The practice phone number listed in the NPPES registry for William Trang is (510) 233-7555.
- Is William Trang's NPI active?
- Yes — William Trang's NPI (1740026079) is active in the NPPES registry as of the last update on 2025-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.