William Breer, LCSW
NPI 1982820650 · Marriage & Family Therapist · Grand Terrace, CA
William Breer, LCSW is a Marriage & Family Therapist provider in Grand Terrace, CA (NPI 1982820650).
Provider details
- NPI number
- 1982820650
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- LCS 7330 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
19 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
- 2007-04-18
- Last updated
- 2025-09-11
Frequently asked questions
- What is William Breer's NPI number?
- William Breer's National Provider Identifier (NPI) is 1982820650, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Breer's specialty?
- William Breer is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is William Breer located?
- William Breer's practice location on file with NPPES is 22365 Barton Rd, Grand Terrace, CA 92313-5015.
- What is William Breer's phone number?
- The practice phone number listed in the NPPES registry for William Breer is (909) 825-2151.
- Is William Breer's NPI active?
- Yes — William Breer's NPI (1982820650) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.