Margaret S Mercer, LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

LC24403 Issued in ME

Practice address

22 Bramhall St
Portland, ME 04102-3134

Phone

(207) 662-2911

Fax

(207) 662-6006

NPI assigned

Dec 15, 2008

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in ME

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Clinical Social Worker

Education

Other, 2006

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

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 Counseling Center of Nashua Inc

  • Clinical Psychologist
  • Nashua, NH
  • NPI 1144275389

  ME

  Medicare reassignment NPD
• Mainehealth

  • Community/Retail Pharmacy
  • Portland, ME
  • NPI 1013868181
  NPD
• Mainehealth

  • Clinic/Center
  • Portland, ME
  • NPI 1487346722
  NPD
• Mainehealth

  • Psychiatric Hospital
  • Westbrook, ME
  • NPI 1790265502
  NPD
• Mainehealth

  • Family Medicine Physician
  • Portland, ME
  • NPI 1629761978
  NPD (past)

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

{
    "created_epoch": "1229299200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1746403200000",
    "number": "1508001934",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "22 BRAMHALL ST",
            "city": "PORTLAND",
            "state": "ME",
            "postal_code": "041023134",
            "telephone_number": "207-662-2911",
            "fax_number": "207-662-6006"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "22 BRAMHALL ST",
            "city": "PORTLAND",
            "state": "ME",
            "postal_code": "041023134",
            "telephone_number": "207-662-2911",
            "fax_number": "207-662-6006"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2950 Tennyson St",
            "address_purpose": "LOCATION",
            "city": "Denver",
            "state": "CO",
            "postal_code": "802123029",
            "country_code": "US",
            "telephone_number": "720-588-3324",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MERCER",
        "first_name": "MARGARET",
        "middle_name": "S",
        "name_prefix": "Miss",
        "credential": "LCSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2008-12-15",
        "last_updated": "2025-05-05",
        "certification_date": "2025-05-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "CO",
            "license": "CSW-1190",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "ME",
            "license": "LC24403",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Alexander John Ment
• Mental Health Associates of Maine LLC
• Katherine Mercedes
• Delinda Mercer, PSYD
• Erik Mercer, L.C.S.W.
• Ashley Mercier, OTR/L
• Christopher Frank Mercier, PA-C
• Kathleen A Mercier, ANP
• Mercy Hospital
• Mercy Hospital

• Clinical Social Worker in Portland, ME
• Providers in Portland, ME by specialty
• Clinical Social Worker in Maine

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 5, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.