J. Gregory Mears, M.D.

J. Gregory Mears, M.D.

Tel - 212 305-3506
Fax - 212 305-4667

Outpatients Office Location

Irving Pavilion 9 923
161 Fort Washington Ave.

Physician Summary

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 & 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.

Clinical Expertise

Breast Cancer
Leukemia & Myeloma

Board Certifications

Internal Medicine


Clinical Professor of Medicine, Columbia University Medical Center


B.S., 1969, Trinity College, Hartford, CT
M.D., 1973, Columbia University, New York, NY

Internship and Residency

Internal Medicine, 1974, University Hospital, Boston University Medical Center, Boston, MA


Hematology/Oncology, 1978, NewYork-Presbyterian/Columbia University Medical Center, New York, NY