Courtney Constantine Walsh, PT, DPT

Primary specialty

Physical TherapistTaxonomy code 225100000X

License

PTL18267 Issued in MA

Practice address

1493 Cambridge St
Cambridge, MA 02139-1047

Phone

(617) 665-1000

NPI assigned

Sep 30, 2025

Sex

Female

Sole proprietor

Yes

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

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: cwalsh125163@direct.challiance.masshiway.net

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 1487603585
  NPD

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

{
    "created_epoch": "1759190400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759190400000",
    "number": "1891669164",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "109 LINDEN ST",
            "city": "EVERETT",
            "state": "MA",
            "postal_code": "021492124",
            "telephone_number": "617-571-3561"
        },
        {
            "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": [],
    "basic": {
        "last_name": "WALSH",
        "first_name": "COURTNEY",
        "middle_name": "CONSTANTINE",
        "name_prefix": "Mrs.",
        "credential": "PT, DPT",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2025-09-30",
        "last_updated": "2025-09-30",
        "certification_date": "2025-09-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225100000X",
            "taxonomy_group": "",
            "desc": "Physical Therapist",
            "state": "MA",
            "license": "PTL18267",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Linda M. Wallace, CCC-A
• Ryan J Wallace
• Rebecca Wallenstein
• Alexis Waller
• Edward Nicholas Waller, FNP-BC
• Eileen Walsh, PA-C
• Elizabeth Paige Walsh, MD
• Enedina Walsh
• Kayley Walsh, MSW, LICSW
• Laura Walsh, R.PH.

• Physical Therapist in Cambridge, MA
• Providers in Cambridge, MA by specialty
• Physical Therapist in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 30, 2025; 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.