Karen Ann Defazio, M.D.

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

74130 Issued in MA

Practice address

14 Prospect Street
Milford-Whitinsville Hos
Milford, MA 01757

Phone

(508) 473-1190

NPI assigned

Jun 1, 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

Enrolled in MA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Merit-based Incentive Payment System (MIPS)

Final score

93.61 of 100Reported as group

Quality

85.22

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Orion Emergency Services, Inc.

  • Emergency Medicine Physician
  • Milford, MA
  • NPI 1588728240
  Medicare reassignment NPD

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

{
    "created_epoch": "1149120000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1982641676",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "46 LATISQUAMA RD",
            "city": "SOUTHBOROUGH",
            "state": "MA",
            "postal_code": "017721609",
            "telephone_number": "508-473-1190"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "14 PROSPECT STREET",
            "address_2": "MILFORD-WHITINSVILLE HOS",
            "city": "MILFORD",
            "state": "MA",
            "postal_code": "01757",
            "telephone_number": "508-473-1190"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DEFAZIO",
        "first_name": "KAREN ANN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-06-01",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "MA",
            "license": "74130",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Rachel Plumb Decola
• Michelle Dedeian Dedeian-Ritter
• Alexia Dedeus
• Taylor Nicole Deegan
• Shelley Ann Deering, MS, RD, LDN
• Abigail Defrancesco
• Nazio Hakim Defreitas
• Sara Patricia Defronzo
• April Marie Degbor
• Casey Degray

• Emergency Medicine Physician in Milford, MA
• Providers in Milford, MA by specialty
• Emergency Medicine Physician 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; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.