John E. McKnight,MD, MBA


Medical Oncologist, CTCA Atlanta

John McKnight - Medical Oncologist

Every patient and every family member deserves to leave a consultation with the hope that treatment will make them better rather than worse. They also deserve to feel confident they will be treated with respect and compassion through one of the most challenging journeys of their lives.

CTCA Atlanta
Medical Oncology
Medical school:
Howard University College of Medicine, Washington, D.C.
D.C. General Hospital, Washington, D.C.
Internal Medicine –  University of Pittsburgh Medical Center / UPMC Presbyterian, Pittsburgh, PA
Medical Oncology – National Cancer Institute / National Institutes of Health, Bethesda, MD
Advanced degrees:
MBA, Health Care Management – Johns Hopkins University Carey Business School, Baltimore, MD
Medical Oncology - American Board of Internal Medicine

Dr. John McKnight is a patient advocate, lecturer and educator dedicated to providing cancer care that is compassionate and patient­ and family-focused. He believes in care of the "whole person," not just managing the disease.

"In my mind, the medical oncologist is there to guide the cancer patient's care," says Dr. McKnight, Medical Oncologist at Cancer Treatment Centers of America® (CTCA), Atlanta.

"CTCA® has done an incredible job of removing barriers so a doctor can be a doctor and patients can be embraced and enveloped in care," he adds. "It is the place where patients receive a more complete understanding of their illness, as well as direction for fighting the disease."

Dr. McKnight has more than 30 years of experience treating a broad range of cancers. He has established a reputation in the diagnosis and treatment of breast cancer and lung cancer. In addition to his clinical practice, Dr. McKnight works to raise awareness about cancer risks associated with obesity and lectures frequently on the topic.

Dr. McKnight is a graduate of Howard University College of Medicine in Washington, D.C. He completed an internal medicine residency at UPMC Presbyterian, which is affiliated with the University of Pittsburgh.

Dr. McKnight completed his medical oncology fellowship at the National Cancer Institute at the National Institutes of Health. He also earned an MBA with a focus in medical management from Johns Hopkins University.

Prior to joining CTCA, Dr. McKnight owned a private practice in Washington, D.C., for 23 years. He was also the vice chairman of the Department of Medicine at Washington Hospital Center in Washington, D.C., and a senior staff oncologist at the Washington Cancer Institute at Washington Hospital Center.

Dr. McKnight has received Washington Hospital Center's highest honor for excellence in teaching, the Joe H. Gaskin MD Award, eight times in his career. Both Washingtonian Magazine (1999, 2002, 2005, 2008, 2010 and 2012) and Washington Consumers’ Checkbook consistently voted him as one of the top doctors in Washington, D.C.

Dr McKnight also was selected by his peers to the Top Doctors List by Atlanta magazine in 2017, 2018 and 2019, and he was named Oncologist of the Year by the Charge Up Campaign in June 2019.

Dr. McKnight also was the 2002 recipient of the Insignis Medal from the Georgetown Preparatory School in Bethesda, Maryland. The school, founded in 1789, offers this award to those who perform outstanding service to God and the community.

Patient ratings
Star ratings and comments are only available for medical, radiation and gynecologic oncologists. Gynecologic surgical offerings are not included at this time due to a different survey tool required to evaluate these services. CTCA uses a validated Press Ganey® survey, which captures patient experience feedback for the primary oncology services of chemotherapy and radiation therapy at our comprehensive care and research centers. Following industry best practice, star ratings and comments are only published for physicians with a minimum of 30 completed patient surveys.