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Dr. Margaret Callahan, MD

Dr. Margaret Callahan, MD

Medical Oncology*

Dr. Margaret Callahan, MD is a medical oncologist in Farmington, CT. She is affiliated with medical facilities such as Stony Brook University Hospital and Memorial Sloan Kettering Cancer Center. She is accepting telehealth appointments.

Practice

263 Farmington Ave Farmington, CT 06030
Telehealth available

Make an Appointment

(860) 679-2100

Hospital Highlight

Dr. Callahan is affiliated with Stony Brook University Hospital Stony Brook, a highly rated hospital.

At a Glance

  • Area of Expertise
    Dr. Callahan specializes in the area of Medical Oncology. • See board certifications
  • Offers Telehealth
    This doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital
    America's 100 Best Hospitals Award™ • See hospitals
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Dr. Callahan's Reviews

Know Before You Go

About Me

biography

Dr. Margaret Callahan, MD is a medical oncologist in Farmington, CT. She is affiliated with medical facilities such as Stony Brook University Hospital and Memorial Sloan Kettering Cancer Center. She is accepting telehealth appointments.

  • Medical Oncology

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

American Board of Medical Specialties®
American Board of Internal Medicine®
- 
Medical Oncology
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

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Focus on Breast Cancer

Locations

Practice

UConn John Dempsey Hospital263 Farmington Ave Farmington, CT 06030
1
Office135 Farmington Ave Farmington, CT 06030
2
Memorial Hospital Opd at 66TH St300 E 66th St New York, NY 10065
3

Affiliated Hospitals

  • Stony Brook University Hospital

    101 Nicolls Rd
    Stony Brook, NY 11794
    Recipient of 33
    hospital awards

    America's 100 Best Hospitals Award™ (2025, 2024, 2023)

    Top 1% in the nation for providing the highest clinical quality year over year

    America's 250 Best Hospitals Award™ (2025, 2024, 2023)

    Top 1% in the nation for providing the highest clinical quality year over year

    View all awards

    How patients felt about the care they received at this hospital.

    86%
    Patients said they were given information about recovering at home

    2% higher than the national average

    74%
    Patients said that doctors always listened to them and explained things well

    2% lower than the national average

    View all patient feedback

  • Memorial Sloan Kettering Cancer Center

    1275 York Ave
    New York, NY 10065

  • Our Lady of Lourdes Memorial Hospital

    169 Riverside Dr
    Binghamton, NY 13905
    Recipient of 19
    hospital awards

    Surgical Care Excellence Award™ (2025, 2023)

    Superior clinical outcomes in surgical care across 15 of the most common in-hospital surgical procedures including cardiac, vascular, joint replacement, prostate, spine, and gastrointestinal surgeries

    View all awards

    How patients felt about the care they received at this hospital.

    86%
    Patients said they were given information about recovering at home

    2% higher than the national average

    73%
    Patients said that nurses always listened to them and explained things well

    2% lower than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality