What is Gabrielle Mesmer's NPI number?

Gabrielle Mesmer's National Provider Identifier (NPI) is 1255206611, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Gabrielle Mesmer's specialty?

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

Where is Gabrielle Mesmer located?

Gabrielle Mesmer's practice location on file with NPPES is 22593 Three Notch Rd, California, MD 20619-3202.

What is Gabrielle Mesmer's phone number?

The practice phone number listed in the NPPES registry for Gabrielle Mesmer is (301) 862-2505.

Is Gabrielle Mesmer's NPI active?

Yes — Gabrielle Mesmer's NPI (1255206611) is active in the NPPES registry as of the last update on 2025-10-07.

IndividualActive

Gabrielle Mesmer

NPI 1255206611 · Behavior Technician · California, MD

Gabrielle Mesmer is a Behavior Technician provider in California, MD (NPI 1255206611).

Provider details

NPI number: 1255206611
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(47/100 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

22593 Three Notch Rd

California, MD 20619-3202

Phone: (301) 862-2505

Fax: (301) 862-2548

Street-level locationGet directions

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Mailing address