Barbara Ellen Breslau, EDD

Primary specialty

Clinical PsychologistTaxonomy code 103TC0700X

License

2018 Issued in MA

Practice address

55 Fruit St Wac 812
Massachusetts General Hospital
Boston, MA 02114

Phone

(617) 724-5600

NPI assigned

Feb 13, 2006

Sex

Female

Sole proprietor

No

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

Opted out of Medicare

Yes, effective Mar 20, 2021 through Mar 20, 2027

Medicare enrollment (NPD)

Not enrolled

Practice roles

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.

• Massachusetts General Physicians Organization Inc

  • Dermatology Physician
  • Boston, MA
  • NPI 1801874573
  NPD (past)

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

{
    "created_epoch": "1139788800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1699749275",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 9142",
            "address_2": "MASS GENERAL PHYSICIAN ORGANIZATION",
            "city": "CHARLESTOWN",
            "state": "MA",
            "postal_code": "021299142",
            "telephone_number": "617-724-0287",
            "fax_number": "617-726-2894"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST WAC 812",
            "address_2": "MASSACHUSETTS GENERAL HOSPITAL",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "02114",
            "telephone_number": "617-724-5600"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BRESLAU",
        "first_name": "BARBARA",
        "middle_name": "ELLEN",
        "name_prefix": "Dr.",
        "credential": "EDD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-02-13",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "MA",
            "license": "2018",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Michael B Brenner, MD
• Todd Aaron Brenner, MD
• Claudia Helen Brennick
• Laura Brenninkmeyer, MS
• Benjamin Brent, M.D., M.S.
• Karen C Bresnahan, M.D.
• Morgan Alyssa Bresnick, M.D.
• John Matthew Bresnihan
• Danielle Bressoud
• Marisa B Brett-Fleegler, MD

• Clinical Psychologist in Boston, MA
• Providers in Boston, MA by specialty
• Clinical Psychologist in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.