Mallory Grimste LLC

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

Legal business name

MALLORY GRIMSTE LLC

Doing business as

Mallory Grimste, LCSW

Practice address

250 W Main St Ste 203
Branford, CT 06405-4032

Phone

(203) 228-8971

Fax

(203) 429-8628

NPI assigned

Apr 19, 2018

Organization subpart

No

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name

Mallory Anne Grimste, LCSWNPI 1841591609

Title

Owner

Phone

(203) 228-8971

Specialties & licenses 1

Addresses

Other names 1

• Mallory Grimste, LCSW Doing business as

Locations

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Mallory Anne Grimste, LCSW

  • Social Worker
  • Branford, CT
  • NPI 1841591609
  NPD Authorized official

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1524096000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1766707200000",
    "number": "1417444910",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "250 W MAIN ST STE 203",
            "city": "BRANFORD",
            "state": "CT",
            "postal_code": "064054032",
            "telephone_number": "203-228-8971",
            "fax_number": "203-429-8628"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "250 W MAIN ST STE 203",
            "city": "BRANFORD",
            "state": "CT",
            "postal_code": "064054032",
            "telephone_number": "203-228-8971",
            "fax_number": "203-429-8628"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "MALLORY GRIMSTE LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2018-04-19",
        "last_updated": "2025-12-26",
        "certification_date": "2025-12-26",
        "status": "A",
        "authorized_official_last_name": "GRIMSTE",
        "authorized_official_first_name": "MALLORY",
        "authorized_official_middle_name": "ANNE",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "203-228-8971",
        "authorized_official_credential": "LCSW"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Social Worker, Clinical",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Mallory Grimste, LCSW",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

• Laura Madden, MD
• Patricia Magida, MSW
• Sara F. Magistro, L.C.S.W.
• Laura Elizabeth Mainelli, AU.D., CCC-A
• Ellen Majors, PAC
• Linda A Mancini, LCSW
• Cecelia Hope Manley, MA, LPC
• William Lawrence Mannle, LMFT
• Brianna M Marcucio, AUD
• Deborah E Marcus, LCSW

• Clinical Social Worker in Branford, CT
• Providers in Branford, CT by specialty
• Clinical Social Worker in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 26, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.