Katherine Williams Duhamel, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

PA6492 Issued in MA

Practice address

1493 Cambridge St
Cambridge, MA 02139-1047

Phone

(617) 665-1000

NPI assigned

Dec 18, 2017

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 1

Medicare fee-for-service enrollment

Enrolled in MA

Eligible to order & refer

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

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

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.

• Cambridge Public Health Commission

  dba Cambridge Health Alliance

  • General Acute Care Hospital
  • Cambridge, MA
  • NPI 1932313228
  Medicare reassignment NPD
• Steward Medical Group, Inc

  • Specialist
  • Watertown, MA
  • NPI 1629398219
  Medicare reassignment NPD
• Umass Memorial Medical Group Inc

  • Internal Medicine Physician
  • Worcester, MA
  • NPI 1760445373

  Physician Assistant

  Medicare reassignment NPD
• Milford Regional Physician Group, Inc.

  • Internal Medicine Physician
  • Milford, MA
  • NPI 1902856024
  Medicare reassignment
• Milford Regional Physician Group, Inc.

  dba Milford Regional Cardiology

  • Cardiovascular Disease Physician
  • Milford, MA
  • NPI 1285031039
  NPD
• Milford Regional Physician Group, Inc.

  dba Sports Medicine & Wellness in Medway

  • Sports Medicine (Family Medicine) Physician
  • Medway, MA
  • NPI 1508681321
  NPD
• Steward Medical Group, Inc

  • Specialist
  • Brighton, MA
  • NPI 1356654495
  NPD
• Umass Memorial Medical Group, Inc.

  dba Urgent Care Express at Harrington

  • Urgent Care Clinic/Center
  • Oxford, MA
  • NPI 1982381018
  NPD

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

{
    "created_epoch": "1513555200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764720000000",
    "number": "1497261168",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "CAMBRIDGE HOSPITAL",
            "address_2": "1493 CAMBRIDGE STREET",
            "city": "CAMBRIDGE",
            "state": "MA",
            "postal_code": "02139",
            "telephone_number": "617-498-1660"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1493 CAMBRIDGE ST",
            "city": "CAMBRIDGE",
            "state": "MA",
            "postal_code": "021391047",
            "telephone_number": "617-665-1000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "14 Prospect St",
            "address_purpose": "LOCATION",
            "city": "Milford",
            "state": "MA",
            "postal_code": "017573003",
            "country_code": "US",
            "telephone_number": "508-482-5405",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "136 Harrison Ave Ste 207",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021111817",
            "country_code": "US",
            "telephone_number": "617-636-0405",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DUHAMEL",
        "first_name": "KATHERINE",
        "middle_name": "WILLIAMS",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-12-18",
        "last_updated": "2025-12-03",
        "certification_date": "2025-12-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MA",
            "license": "PA6492",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110029050A",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Rachael Duda
• Julie Anne Duffy
• John H. Dugan, LICSW
• Anna Duggan
• Sandra Marie Duggan, LICSW
• Bernice S. Duhl, ED.D.
• Dulong Kronstein MC Manama Fish PC (Restorative Dental Group of Cambridge)
• Stephen Dulong, DMD
• Lauren Dumont, PSYD
• Miles Aaron Dunbar, M.D.

• Physician Assistant in Cambridge, MA
• Providers in Cambridge, MA by specialty
• Physician Assistant in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 3, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.