What is Spencer Diamond's NPI number?

Spencer Diamond's National Provider Identifier (NPI) is 1518899442, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Spencer Diamond's specialty?

Spencer Diamond is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).

Where is Spencer Diamond located?

Spencer Diamond's practice location on file with NPPES is 2421 Portola Rd, Ventura, CA 93003-8046.

What is Spencer Diamond's phone number?

The practice phone number listed in the NPPES registry for Spencer Diamond is (858) 264-5858.

Is Spencer Diamond's NPI active?

Yes — Spencer Diamond's NPI (1518899442) is active in the NPPES registry as of the last update on 2026-06-03.

IndividualActive

Spencer Diamond

NPI 1518899442 · Behavior Analyst · Ventura, CA

Spencer Diamond is a Behavior Analyst provider in Ventura, CA (NPI 1518899442).

Provider details

NPI number: 1518899442
Entity type: Individual
Primary specialty: Behavior AnalystBehavioral Health & Social Service Providers
Sole proprietor: No

Specialties & taxonomies

Behavior AnalystPrimary103K00000X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(46/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
83% 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

2421 Portola Rd

Ventura, CA 93003-8046

Phone: (858) 264-5858

Street-level locationGet directions

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Mailing address