William Dexter, AMFT
NPI 1821694951 · Mental Health Counselor · Santa Ana, CA
William Dexter, AMFT is a Mental Health Counselor provider in Santa Ana, CA (NPI 1821694951).
Provider details
- NPI number
- 1821694951
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- AMFT
- Sex
- Male
- Sole proprietor
- Yes
- License
- 114366 (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
5 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
- 2020-12-04
- Last updated
- 2020-12-04
- Certified
- 2020-12-04
Frequently asked questions
- What is William Dexter's NPI number?
- William Dexter's National Provider Identifier (NPI) is 1821694951, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Dexter's specialty?
- William Dexter is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is William Dexter located?
- William Dexter's practice location on file with NPPES is 1950 E 17th St Ste 150, Santa Ana, CA 92705-6852.
- What is William Dexter's phone number?
- The practice phone number listed in the NPPES registry for William Dexter is (949) 296-4536.
- Is William Dexter's NPI active?
- Yes — William Dexter's NPI (1821694951) is active in the NPPES registry as of the last update on 2020-12-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.