Physicians

Dr. Christopher Bozarth, Radiation Oncologist

Dr. Bozarth attended medical school at the University of Oklahoma where he graduated in 1994. After completing a residency program in radiotherapy at the University of Oklahoma Health Sciences Center in 1994, Dr. Bozarth served as the Assistant Chief of Radiation Oncology at Brooke Army Medical Center. Board Certified in Radiation Oncology in 1999, Dr. Bozarth began as the Director of Radiotherapy at the Cancer Treatment Center of Oklahoma in January, 2002.

Location: Midwest City


Dr. Teresa Craig, Radiation Oncologist

Dr. Craig earned her Bachelor of Science, and Medical Degrees from the University of Oklahoma. She completed her residency in internal medicine at the OU Tulsa Medical College. After 2 years of practicing internal medicine, she began her residency in Radiation Oncology at OU. She is the former Medical Director of Radiation Oncology at Integris Oklahoma City. Dr. Craig is board certified in Radiation Oncology and a member of the American Society of Therapeutic Radiation Oncologists, Oklahoma State Medical Association, and the American College of Radiation Oncology.

Locations: Oklahoma CityMoore


Dr. Stephen Hamilton, Medical Oncologist

Dr. Hamilton graduated with a Medical Degree in 1991 from the University of Oklahoma. After completing his Internal Medicine residency program in 1994, he finished a Hematology/Oncology fellowship. Dr. Hamilton received his Board Certification in both Internal Medicine and Medical Oncology in 1996. Dr. Hamilton has served as the Chief of Staff at Midwest Regional Medical Center and has practiced at Cancer Treatment Center of Oklahoma since 1997.

Location: Midwest City


Dr. Todd Kliewer, Medical Oncologist

After completing residency plus serving as Chief Resident in Internal Medicine at the University of Oklahoma, Dr. Kliewer finished his Hematology/Oncology fellowship in 1999. He received several prestigious honors while in training at OUHSC. Dr. Kliewer has served throughout Oklahoma since beginning practice in 2000 and is Board Certified in both Internal Medicine and Medical Oncology.

Locations: Midwest CityMoore


Dr. Sumbal Nabi, Medical Oncologist

Dr. Nabi received her medical degree in 2002 from Aga Khan University Medical College, Pakistan. After completing her Internal Medicine Residency Program in 2008 at the University of Oklahoma Health Sciences Center, Dr. Nabi finished her Medical Oncology/Hematology Fellowship at Roswell Park Cancer Institute. She received her Board Certification in both Internal Medicine and Hematology/Oncology in 2011. Since August of 2010, Dr. Nabi has practiced Community Hematology/Oncology at Cancer Centers of Southwest Oklahoma, Lawton, Oklahoma. She joined the Optim Oncology family in the Summer of 2013 and is providing chemotherapy and infusion services to patients at our Oklahoma City, Edmond and Chickasha locations.



Dr. Troy Richards, Radiation Oncologist

Dr. Richards attended medical school at the Tulane Medical School where he graduated in 1996. After completing a residency program in radiotherapy and serving as Chief Resident in Radiation Oncology at the University of Texas in 2001, Dr. Richards has extensive experience practicing with IMRT/3D Conformal Radiation, LDR and HDR Brachytherapy, Cyberkife and Gamma Knife Stereotactic Radiosurgery, and Tomotherapy.

Locations: Ponca CityMoore