Clare O'Callaghan, RN.C.S., ED.D

Primary specialty

Psychiatric/Mental Health Registered NurseTaxonomy code 163WP0808X

License

121276 Issued in MA

Practice address

1601 Washington St
Boston, MA 02118-1951

Phone

(617) 425-2000

Fax

(617) 425-2043

NPI assigned

Jan 16, 2007

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

State licenses

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

{
    "created_epoch": "1168905600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1235280389",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "42 OLD QUARRY DR",
            "city": "WEYMOUTH",
            "state": "MA",
            "postal_code": "021883867",
            "telephone_number": "781-337-2118"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1601 WASHINGTON ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021181951",
            "telephone_number": "617-425-2000",
            "fax_number": "617-425-2043"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'CALLAGHAN",
        "first_name": "CLARE",
        "credential": "RN.C.S., ED.D",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-01-16",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103G00000X",
            "taxonomy_group": "",
            "desc": "Clinical Neuropsychologist",
            "state": "MA",
            "license": "2024",
            "primary": false
        },
        {
            "code": "163WP0808X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Psychiatric/Mental Health",
            "state": "MA",
            "license": "121276",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Patricia O'Brien, RR, CPNP-AC
• Rachel O'Brien
• Rebecca F O'Brien, MD
• Sharon E O'Brien, MD
• Emily M O'Bryan, PH.D.
• Conall Michael O'Cleirigh, PHD
• Amy E O'Connell, M.D., PH.D.
• Caitlin Maria O'Connell, CPNP
• Christopher Thomas O'Connell, PSY.D
• Douglas O'Connell

• Psychiatric/Mental Health Registered Nurse in Boston, MA
• Providers in Boston, MA by specialty
• Psychiatric/Mental Health Registered Nurse in Massachusetts

• 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.