Oak Cliff Health Center

Dr. Morris-Harris joined Prism Health North Texas as its first Chief Medical Officer (CMO) in July 2017.  In this role, Dr. Morris-Harris works with patients, medical staff, and its medical director.

Dr. Morris-Harris previously served as CMO at Austin-based CommUnityCare, a large, federally qualified health center known for its outpatient HIV-practice. Prior to CommUnityCare, she worked as a staff physician at Parkland Health. Dr. Morris Harris is a Fellow of the Institute of the Infectious Disease Society of America, a designation she earned in 2021. She is also a Board-Certified Internist and is AAHIVM certified.

Dr. Morris-Harris received her Ph.D. in Neurobiology from Yale University.  She received her Medical Degree, with a special concentration in Neurology, from Harvard Medical School and her MBA from Texas Christian University.

Elizabeth Race is a medical doctor at Prism Health North Texas.

Dr. Sinclair is a Graduate of Case Western Reserve University School of Medicine. He has practiced Infectious Disease Medicine and HIV Primary Care since finishing his Fellowship in Infectious Diseases at Case Western in July of 2000. He was a faculty member at The University of Texas Southwestern Medical Center at Dallas between 2000 and 2010 and achieved the rank of Associate Professor. In 2006, he took a year-long sabbatical to work at Merck and Co., Inc., where he was part of the team that prepared the New Drug Application which led to FDA approval of Isentress in 2007. He has served as the Director of Medical Education for the Texas Oklahoma AIDS Education and Training Center. He has been involved in the President’s Emergency Plan for AIDS Relief and participated in training events in Oshakati, Namibia, and in the Limpopo Province of South Africa. He currently practices HIV Medicine at Prism Health NTX in the southern sector of Dallas, Texas, and he holds privileges in Internal Medicine and Infectious Diseases at Baylor University Medical Center in Dallas. His clinical focus has always been expanding access to new treatment modalities in underserved communities, particularly for people with stigmatizing illnesses such as HIV, Hepatitis C, Sexually Transmitted Infections, and Tuberculosis.

Amy Barrier is a nurse practitioner with Prism Health North Texas.

Emilija Rosenthal is a nurse practitioner at Prism Health North Texas.

Jennifer Klein is a Family Nurse Practitioner in Dallas who has provided primary and specialized care for people living with HIV since 2005. Her professional experience prior to working in HIV includes public education, community health, and specifically health promotion. Jennifer was fortunate enough to stumble into her career with Prism Health North Texas while fulfilling her commitment to working in an underserved clinic through National Health Service Corps. She completed her Master of Science in Nursing at Johns Hopkins University School of Nursing in 2004. Jennifer maintains credentialing as an AAHIVM Specialist, acts as a sub-investigator on multiple clinical trials, and currently sees patients full-time.

Richard Ornberg is passionate about providing inclusive, patient-centered, holistic primary care to his patients. He completed nursing school at the University of Texas at Arlington with a Bachelor of Science in Nursing. He worked as a nurse in the emergency department at multiple Level I trauma centers. Rick then earned his Doctorate in Nursing Practice from Texas Wesleyan University. His doctoral project studied alternative, mindfulness-based, and holistic interventions to manage chronic pain. After graduation, he worked as a primary care provider in an addiction and recovery facility. He is a board-certified Family Nurse Practitioner through the American Association of Nurse Practitioners as well as credentialed by the American Academy of HIV Medicine as an HIV Specialist ^TM.

Rick grew up in Chicago before relocating to Dallas where he has lived for over 30 years. He enjoys traveling and spending time with his family and three pups in his free time.