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Mark Diamond, PHD
NPI 1831247998 · Clinical Psychologist · Temecula, CA
Mark Diamond, PHD is a Clinical Psychologist provider in Temecula, CA (NPI 1831247998).
Provider details
- NPI number
- 1831247998
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY8771 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
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
29377 Rancho California Rd
Suite 201
Temecula, CA 92591-5206
Phone: (951) 693-2486
Street-level locationGet directions
Mailing address
24980 Terreno Dr
Temecula, CA 92590-3989
Registry dates
- Enumerated
- 2007-01-08
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Diamond's NPI number?
- Mark Diamond's National Provider Identifier (NPI) is 1831247998, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Diamond's specialty?
- Mark Diamond is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Mark Diamond located?
- Mark Diamond's practice location on file with NPPES is 29377 Rancho California Rd, Temecula, CA 92591-5206.
- What is Mark Diamond's phone number?
- The practice phone number listed in the NPPES registry for Mark Diamond is (951) 693-2486.
- Is Mark Diamond's NPI active?
- Yes — Mark Diamond's NPI (1831247998) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.