John Simmons, LMFT
NPI 1821311234 · Marriage & Family Therapist · Murrieta, CA
John Simmons, LMFT is a Marriage & Family Therapist provider in Murrieta, CA (NPI 1821311234).
Provider details
- NPI number
- 1821311234
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LMFT
- Sex
- Male
- Sole proprietor
- Yes
- License
- 8151 (SC)
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
16 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
- 2010-03-12
- Last updated
- 2025-01-27
- Certified
- 2025-01-27
Frequently asked questions
- What is John Simmons's NPI number?
- John Simmons's National Provider Identifier (NPI) is 1821311234, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Simmons's specialty?
- John Simmons is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is John Simmons located?
- John Simmons's practice location on file with NPPES is 39755 Murrieta Hot Springs Rd Ste D160, Murrieta, CA 92563-9113.
- What is John Simmons's phone number?
- The practice phone number listed in the NPPES registry for John Simmons is (310) 570-9368.
- Is John Simmons's NPI active?
- Yes — John Simmons's NPI (1821311234) is active in the NPPES registry as of the last update on 2025-01-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.