Mary C Alexander, LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

100078 Issued in NY

Practice address

134 N 4TH St
Brooklyn, NY 11249-3296

Phone

(757) 831-7966

NPI assigned

Apr 8, 2021

Sex

Female

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in NY

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, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Valera Medical PCGroup PAC ID 0547690521, 160 clinicians

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.

• Valera Medical, P.C.

  • Psychiatry Physician
  • Brooklyn, NY
  • NPI 1437782349

  Social Worker

  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1617840000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1746662400000",
    "number": "1629657358",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "134 N 4TH ST",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112493296"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "134 N 4TH ST",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112493296",
            "telephone_number": "757-831-7966"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ALEXANDER",
        "first_name": "MARY",
        "middle_name": "C",
        "credential": "LCSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-04-08",
        "last_updated": "2025-05-08",
        "certification_date": "2025-05-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "TX",
            "license": "104233",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "NY",
            "license": "100078",
            "primary": true
        },
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "MI",
            "license": "6801108341",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Krystal Renee Alexander, PA-C
• Lavern Alexander
• Lenessa Chioma Alexander, LCSW
• Makeda Alexander, PA-C
• Mallory Alexander
• Melissa Koreen Alexander
• Michael Alexander, PHD
• Natacha Alexander
• Rachel Sonia Alexander
• Raymond Anthony Alexander, PT

• Clinical Social Worker in Brooklyn, NY
• Providers in Brooklyn, NY by specialty
• Clinical Social Worker in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 8, 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.