Joy O'Brien

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

RN213177 Issued in MA

Practice address

25 Boylston St Ste 302
Chestnut Hill, MA 02467-1710

Phone

(617) 916-0895

Fax

(617) 916-0937

NPI assigned

Jan 6, 2026

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

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

{
    "created_epoch": "1767657600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767657600000",
    "number": "1689531386",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "25 BOYLSTON ST STE 302",
            "city": "CHESTNUT HILL",
            "state": "MA",
            "postal_code": "024671710",
            "telephone_number": "617-916-0895",
            "fax_number": "617-916-0937"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "25 BOYLSTON ST STE 302",
            "city": "CHESTNUT HILL",
            "state": "MA",
            "postal_code": "024671710",
            "telephone_number": "617-916-0895",
            "fax_number": "617-916-0937"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'BRIEN",
        "first_name": "JOY",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-01-06",
        "last_updated": "2026-01-06",
        "certification_date": "2026-01-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "RN213177",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• NVP Medical Group Ca, P.C
• NVP Medical Group KS, P.a.
• NVP Medical Group NJ, PC
• NVP Medical Group Ny PC
• Alexander Thomas O'Brien, PMHNP
• Roselle P O'Brien, LMHC
• Mark E O'Connell, PH.D.
• Claire Marie O'Connor, LICSW
• Samantha Ann O'Hearn
• Ryan O'Malley, PTA

• Internal Medicine Physician in Chestnut Hill, MA
• Providers in Chestnut Hill, MA by specialty
• Internal Medicine Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 6, 2026; 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.