Megan Collins Williamson, LICSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

122537 Issued in MA

Practice address

98 Lower Westfield Rd
Holyoke, MA 01040-9403

Phone

(413) 533-5201

NPI assigned

Sep 20, 2016

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

Other identifiers 2

Medicare fee-for-service enrollment

Enrolled in MA

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

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.

• Servicenet Inc

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Northampton, MA
  • NPI 1659314425
  Medicare reassignment NPD

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

{
    "created_epoch": "1474329600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780012800000",
    "number": "1255889184",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1350 MAIN ST STE 1500",
            "city": "SPRINGFIELD",
            "state": "MA",
            "postal_code": "011031667",
            "telephone_number": "413-288-5882"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "98 LOWER WESTFIELD RD",
            "city": "HOLYOKE",
            "state": "MA",
            "postal_code": "010409403",
            "telephone_number": "413-533-5201"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "COLLINS WILLIAMSON",
        "first_name": "MEGAN",
        "credential": "LICSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-09-20",
        "last_updated": "2026-05-29",
        "certification_date": "2026-05-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "MA",
            "license": "122537",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LICSW",
            "identifier": "122537",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "NPI",
            "identifier": "1255889184",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Steven Michael Cole, MA. LMHC
• Amanda Coleman
• Caitlin Coleman
• Heather L Coleman
• Sydney Coleman
• Anastasia Collins
• Paula Collins, RN
• Stephen Anthony Collins Jr., MPH, BSN
• Gicela M.M. Colon Alvira
• Jose F. Colon Sifonte, MSW

• Clinical Social Worker in Holyoke, MA
• Providers in Holyoke, MA by specialty
• Clinical Social Worker in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 29, 2026; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.