Physician Detail

Joseph Garret Sinning, MD

4.9 /5
143 surveys


Hartford HealthCare Medical Group


Medical Oncology, Board Certified < Accepting new patients for this specialty
Hematology / Oncology, Board Certified < Accepting new patients for this specialty
Internal Medicine, Board Certified < Not accepting new patients for this specialty

Areas of Interest

Breast Cancer, Gastrointestinal Cancer, Hematologic Malignancy

Physician Quicklink

Institute URL

Sinning, Joseph Garret, MD



Office Locations

  • Hartford HealthCare Cancer Institute - Plainville, Medical Oncology, Infusion Services

    201 North Mountain Road
    Suite 202
    Plainville, CT 06062
    Medical Arts Building
    Get Directions >>

    Phone: 860.224.4408
    Fax: 860.827.3428

  • Hartford HealthCare Cancer Institute - Southington, Medical Oncology

    55 Meriden Avenue
    Suite 1A
    Southington, CT 06489
    Get Directions >>

    Phone: 860.621.9316
    Fax: 860.620.5526

  • Hartford HealthCare Cancer Institute at The Hospital of Central Connecticut - Torrington, Medical Oncology

    540 Litchfield Street
    6th Floor
    Torrington, CT 06790
    Charlotte Hungerford Hospital
    Get Directions >>

    Phone: 860.496.6825
    Fax: 860.496.6882

  • Hartford HealthCare Cancer Institute - New Britain, Infusion Services

    183 North Mountain Road
    Suite 202
    New Britain, CT 06053
    Get Directions >>

    Phone: 860.827.4185
    Fax: 860.223.0121

  • Hartford HealthCare Cancer Institute at The Hospital of Central Connecticut Bradley Memorial Campus - Southington, Infusion Services

    81 Meriden Avenue
    Southington, CT 06489
    Get Directions >>

    Phone: 860.279.5006
    Fax: 860.276.5165


Joseph Sinning, MD, is a hematologist/oncologist with the Hartford HealthCare Cancer Institute, seeing patients in Plainville, Southington and Torrington.

Dr. Sinning served the greater Hartford and Waterbury communities in private practice and on the staff of St. Francis Hospital for years. His clinical interests include hematologic malignancies, general hematology and oncology, and breast cancer.

After earning a bachelor’s degree in biochemistry from Dartmouth College, he graduated from the Columbia University College of Physicians & Surgeons. He completed his internship and residency in internal medicine at the Naval Medical Center in Oakland, CA, and the University of California San Francisco, then went on to complete a pair of fellowships. One was in bone marrow transplantation at Stanford University School of Medicine, and the second was in hematology and medical oncology at Yale University School of Medicine.

Board-certified in medical oncology, hematology and internal medicine,Dr. Sinning is also an active researcher. He has served as sub-investigator in medical oncology and blood disorders with the Cooperative Group and Pharmaceutical Studies and has been named a Top Doctor by Connecticut Magazine for many years.



Medical School

  • Columbia University College of Physicians & Surgeons MD


  • Naval Medical Center


  • University of California, Internal Medicine
  • Naval Medical Center, Internal Medicine


  • Stanford University School of Medicine, Bone Marrow Transplantation
  • Yale University School of Medicine, Hematology and Medical Oncology

Other Reviews from Around the Web

Insurance Accepted*

Aetna, Anthem, BCBS Medicare, CarePartners of Connecticut, Cigna Healthcare, Colonial Cooperative Care, Community Health Network of Connecticut, Inc., Connecticare, Connecticare Commercial, Connecticare Medicare, Corvel, Coventry, Essence Healthcare, Evercare, First Health Group Corp., Focus, Harvard Pilgrim, Health Connecticut, Health Direct, Health New England, Healthy Connecticut, HMC/ Northeast Healthcare, Medspan Commercial, Medspan Medicare, Multiplan, Northeast Health Direct, One Health Plan/ Great-West Healthcare, Oxford Health Plans, Prime Health Services, Private Health Care Systems, Inc., Senior Whole Health, United Healthcare, WellCare of Connecticut, Inc.

*This information is subject to change at any time. Please check with your insurance provider before scheduling your appointment or receiving services to confirm they are a participating member of the Hartford HealthCare network.

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