Margaret Callahan, MD

Primary specialty

Medical Oncology PhysicianTaxonomy code 207RX0202X

License

075986 Issued in CT

Practice address

263 Farmington Ave
Farmington, CT 06030

Phone

(860) 679-2100

NPI assigned

Aug 9, 2009

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

Enrolled in CT

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

Specialty

Hematology/Oncology

Education

Other, 2007

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University of Connecticut Health Center 624 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• John Dempsey Hospital of the University of Connect Hospital, Farmington, CT, CCN 070036

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mcallahan72851@direct.med.uchc.edu

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.

• University of Connecticut Health Center

  • General Practice Physician
  • Farmington, CT
  • NPI 1720083769

  CT

  Medicare reassignment Care Compare group NPD
• University of Connecticut Health Center

  • Durable Medical Equipment & Medical Supplies
  • Farmington, CT
  • NPI 1104809375
  Care Compare group NPD
• University of Connecticut Health Center

  • Clinical Medical Laboratory
  • Farmington, CT
  • NPI 1427031293
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• John Dempsey Hospital at Solnit - South Campus

  • Psychiatric Hospital Unit
  • Middletown, CT
  • NPI 1154263713

  Hospital

  Care Compare affiliation
• State of Connecticut

  • General Acute Care Hospital
  • Farmington, CT
  • NPI 1669466561

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1249776000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1705363200000",
    "number": "1508098534",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "263 FARMINGTON AVE",
            "city": "FARMINGTON",
            "state": "CT",
            "postal_code": "060308082",
            "telephone_number": "860-679-2100"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "263 FARMINGTON AVE",
            "city": "FARMINGTON",
            "state": "CT",
            "postal_code": "06030",
            "telephone_number": "860-679-2100"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1275 York Ave",
            "address_purpose": "LOCATION",
            "city": "New York",
            "state": "NY",
            "postal_code": "100656007",
            "country_code": "US",
            "telephone_number": "800-585-4118",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CALLAHAN",
        "first_name": "MARGARET",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2009-08-09",
        "last_updated": "2024-01-16",
        "certification_date": "2024-01-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "CT",
            "license": "075986",
            "primary": true
        },
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "NY",
            "license": "251318-1",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Cadtc Partners LLP
• Alfonso Caetta, MD
• Laurie Cosker Caines, MD
• Annette Marie Calafell
• Gabriel Calderon, DDS
• Hayley Callaway
• Calming Autumn Counseling LLC
• Carolina Camargo Ferraz de Oliveria, M.D.
• Nicholas David Camic, DMD
• Caitlyn Campagna

• All providers in Farmington, CT
• Medical Oncology Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 16, 2024; 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.