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John Gregory Mears, MD

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Physician Detail


J. Gregory Mears, M.D. is a Clinical Professor of Medicine at Columbia University Medical Center.

After receiving a B.S. at Trinity College, Dr. Mears obtained an M.D. at The College of Physicians and Surgeons, Columbia University. He undertook his Internal Medicine residency at Boston University Medical Center and his Hematology-Medical Oncology fellowship at Columbia University Medical Center.

Dr. Mears’ early career was research based and involved studies of the molecular genetics of disorders of hemoglobin as well as chronic myelogenous leukemia. For the past 25 years Dr. Mears has maintained a clinical practice caring for people with blood disorders with an emphasis on leukemia, non-Hodgkin’s lymphoma, Hodgkin’s disease, and multiple myeloma. Dr. Mears has a strong clinical interest in women with breast cancer and is the Medical Director of the OctoberWoman Foundation.

Additionally, Dr. Mears is pursuing clinical research in the fields of Hodgkin’s and non-Hodgkin’s lymphoma as well as breast cancer. He is also actively engaged in the teaching of medical students, residents and fellows.

Primary Specialties
Medical Oncology
Hematology (Board Certified)
Board Certification
Internal Medicine
Education And Training
Columbia University College of Physicians and Surgeons
Internship: Boston University Medical Center
Residency: Boston University Medical Center
Fellowship: Columbia Presbyterian Medical Center, NY
Clinical Expertise
Medical Oncology
Breast Cancer
Anemia, Iron Deficiency
Sickle Cell Anemia
Multiple Myeloma
Bleeding Disorder
Insurance Programs
Please contact the doctor's office to verify that your insurance is accepted.
CIGNA [Great West, HMO, POS, PPO]
Empire Blue Cross Blue Shield [NYP Employee Plan]
Health Insurance Plan of NY (HIP) [ConnectiCare, EPO, HMO, Medicaid, Medicare, PPO, Select Care (Exchange), Vytra]
Medicare [Medicare]
Oxford Health Plans [Freedom, Liberty, Medicare]
UnitedHealthcare [Compass (Exchange), HMO, Medicare, POS, PPO]


This provider accepts new patients
Appointment Phone Number:
(212) 305-3506
Primary Office
Herbert Irving Pavilion
161 Fort Washington Avenue
Suite 923
New York, NY 10032

Phone: (212) 305-3506
Fax: (212) 305-4667
Public Transportation: Yes
Disabled Access: Yes
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