Back 9 Physical Therapy and Performance

Primary specialty

Physical Therapy Clinic/CenterTaxonomy code 261QP2000X

Legal business name

BACK 9 PHYSICAL THERAPY AND PERFORMANCE

Practice address

350 Massachusetts Ave
Cambridge, MA 02139-4182

Phone

(617) 802-8036

NPI assigned

Mar 15, 2025

Organization subpart

No

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

Authorized official

Name

Mr. Donald Feeney Jr., DPTNPI 1598375016

Title

Manager

Phone

(617) 802-8036

Specialties & licenses 1

Addresses

Locations

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Donald Feeney Jr., PT,DPT

  • Orthopedic Physical Therapist
  • Braintree, MA
  • NPI 1598375016
  NPD Authorized official

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

{
    "created_epoch": "1741996800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1742169600000",
    "number": "1699575985",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "168 WALNUT ST APT 6",
            "city": "WATERTOWN",
            "state": "MA",
            "postal_code": "024724035"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "350 MASSACHUSETTS AVE",
            "city": "CAMBRIDGE",
            "state": "MA",
            "postal_code": "021394182",
            "telephone_number": "617-802-8036"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "BACK 9 PHYSICAL THERAPY AND PERFORMANCE",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-03-15",
        "last_updated": "2025-03-17",
        "certification_date": "2025-03-17",
        "status": "A",
        "authorized_official_last_name": "FEENEY",
        "authorized_official_first_name": "DONALD",
        "authorized_official_title_or_position": "MANAGER",
        "authorized_official_telephone_number": "617-802-8036",
        "authorized_official_name_prefix": "Mr.",
        "authorized_official_name_suffix": "Jr.",
        "authorized_official_credential": "DPT"
    },
    "taxonomies": [
        {
            "code": "261QP2000X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Physical Therapy",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Fatima Pirzada Aziz, D.M.D.
• Camila Rene Azuero, MSW, LICSW
• Chris Andrew Babbage, M.D.
• Nastela Babo, DMD
• Hannah Bach, M.D.
• Stella J Bae, M.D.
• Emily Elizabeth Baer, LCSW
• Janet Baer, MD
• Mark T Baetzhold
• Jamie Baik

• Physical Therapy Clinic/Center in Cambridge, MA
• Providers in Cambridge, MA by specialty
• Physical Therapy Clinic/Center in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 17, 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.