What is Marissa Dier's NPI number?

Marissa Dier's National Provider Identifier (NPI) is 1811875495, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Marissa Dier's specialty?

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

Where is Marissa Dier located?

Marissa Dier's practice location on file with NPPES is 2000 Tower Oaks Blvd Ste 500, Rockville, MD 20852-4377.

What is Marissa Dier's phone number?

The practice phone number listed in the NPPES registry for Marissa Dier is (301) 444-5001.

Is Marissa Dier's NPI active?

Yes — Marissa Dier's NPI (1811875495) is active in the NPPES registry as of the last update on 2025-08-22.

IndividualActive

Marissa Dier

NPI 1811875495 · Behavior Technician · Rockville, MD

Marissa Dier is a Behavior Technician provider in Rockville, MD (NPI 1811875495).

Provider details

NPI number: 1811875495
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(48/100 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

2000 Tower Oaks Blvd Ste 500

Rockville, MD 20852-4377

Phone: (301) 444-5001

Street-level locationGet directions

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Mailing address