Jennifer Jean Mercier, MSW

Primary specialty

CounselorTaxonomy code 101Y00000X

Practice address

334 Fenn St
Pittsfield, MA 01201-5286

Phone

(413) 499-0412

NPI assigned

Jan 21, 2026

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• The Brien Center for Mental Health and Substance Abuse Services Inc.

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Pittsfield, MA
  • NPI 1518984251
  NPD (past)

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

{
    "created_epoch": "1768953600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768953600000",
    "number": "1033078399",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "146 DRAPER AVE",
            "city": "PITTSFIELD",
            "state": "MA",
            "postal_code": "012013495",
            "telephone_number": "413-446-0907"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "334 FENN ST",
            "city": "PITTSFIELD",
            "state": "MA",
            "postal_code": "012015286",
            "telephone_number": "413-499-0412"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MERCIER",
        "first_name": "JENNIFER",
        "middle_name": "JEAN",
        "credential": "MSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-01-21",
        "last_updated": "2026-01-21",
        "certification_date": "2026-01-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101Y00000X",
            "taxonomy_group": "",
            "desc": "Counselor",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kristin Mendoza, MSOT, OTR/L
• Fred E Mensch, MD
• Elizabeth Mentado, MS
• Valerie Mercado
• Holly Merchant, LICSW
• Stephanie Merwin, PT
• Alan Wayne Metzger, D.D.S.
• Christina Meucci, A.T.C., L.A.T, CES
• Corey Jon Meyers, M.D.
• Lynn D Meyers, CEIS

• Counselor in Pittsfield, MA
• Providers in Pittsfield, MA by specialty
• Counselor in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 21, 2026; 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.