What is Mallory Grimste's NPI number?

Mallory Grimste's National Provider Identifier (NPI) is 1841591609, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mallory Grimste's specialty?

Mallory Grimste is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).

Where is Mallory Grimste located?

Mallory Grimste's practice location on file with NPPES is 250 W Main St Ste 203, Branford, CT 06405-4032.

What is Mallory Grimste's phone number?

The practice phone number listed in the NPPES registry for Mallory Grimste is (203) 228-8971.

Is Mallory Grimste's NPI active?

Yes — Mallory Grimste's NPI (1841591609) is active in the NPPES registry as of the last update on 2025-10-06.

IndividualActive

Mallory Grimste, LCSW

NPI 1841591609 · Social Worker · Branford, CT

Mallory Grimste, LCSW is a Social Worker provider in Branford, CT (NPI 1841591609).

Provider details

NPI number: 1841591609
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Credential: LCSW
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Social WorkerPrimary104100000X
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(76/100 index)

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

Registry tenure38% of score
15 yrs in NPPES 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

250 W Main St Ste 203

Branford, CT 06405-4032

Phone: (203) 228-8971

Fax: (203) 429-8628

Street-level locationGet directions

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Mailing address