What is Belen Guillen's NPI number?

Belen Guillen's National Provider Identifier (NPI) is 1821930975, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Belen Guillen's specialty?

Belen Guillen is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).

Where is Belen Guillen located?

Belen Guillen's practice location on file with NPPES is 3186 Airway Ave Ste a, Costa Mesa, CA 92626-4650.

What is Belen Guillen's phone number?

The practice phone number listed in the NPPES registry for Belen Guillen is (714) 881-0427.

Is Belen Guillen's NPI active?

Yes — Belen Guillen's NPI (1821930975) is active in the NPPES registry as of the last update on 2026-04-08.

IndividualActive

Belen Guillen

NPI 1821930975 · Behavior Technician · Costa Mesa, CA

Belen Guillen is a Behavior Technician provider in Costa Mesa, CA (NPI 1821930975).

Provider details

NPI number: 1821930975
Entity type: Individual
Primary specialty: Behavior TechnicianBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Behavior TechnicianPrimary106S00000X
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

3186 Airway Ave Ste a

Costa Mesa, CA 92626-4650

Phone: (714) 881-0427

Street-level locationGet directions

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Mailing address