Individual provider Active NPI

Joanne E Cox, MD

  • Adolescent Medicine (Family Medicine) Physician
  • Boston, MA
National Provider Identifier
1629187273
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Adolescent Medicine (Family Medicine) PhysicianTaxonomy code 207QA0000X
License
53346 Issued in MA
Practice address
300 Longwood Ave
Boston, MA 02115-5724
Phone
(617) 355-7701
NPI assigned
Aug 29, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Adolescent Medicine (Family Medicine) Physician 207QA0000X 53346 MA Primary
Pediatrics Physician 208000000X 53346 MA

Addresses

Primary practice location

300 Longwood Ave
Boston, MA 02115-5724

Mailing address

65 Arrowhead Rd
Weston, MA 02493-1706
Phone (781) 893-7203

Other identifiers 1

IdentifierTypeStateIssuer
3013900MedicaidMA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
53346MAMDAdolescent Medicine (Family Medicine) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Children'S Hospital Pediatric Associates, Inc Pediatrics Past Accepting new patients

Interoperability endpoints

  • Direct secure messaging: jcox25818@direct.bostonchildrens.org

Organizations & group practices 1

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.

NPI Registry JSON

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

{
    "created_epoch": "1156809600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1629187273",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "65 ARROWHEAD RD",
            "city": "WESTON",
            "state": "MA",
            "postal_code": "024931706",
            "telephone_number": "781-893-7203"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 LONGWOOD AVE",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021155724",
            "telephone_number": "617-355-7701"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "COX",
        "first_name": "JOANNE",
        "middle_name": "E",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-08-29",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207QA0000X",
            "taxonomy_group": "",
            "desc": "Family Medicine, Adolescent Medicine",
            "state": "MA",
            "license": "53346",
            "primary": true
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MA",
            "license": "53346",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3013900",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 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.