Our Staff

Julio Rosenstock, M.D.
Dr. Julio Rosenstock received his medical degree from the University of Costa Rica School of Medicine. He completed fellowships in endocrinology and diabetes at the Royal Postgraduate Medical School at Hammersmith Hospital in London and at the University of Texas Southwestern Medical Center in Dallas. He is board certified in internal medicine and in endocrinology and metabolism. He is fluent in both English and Spanish.

Dr. Rosenstock is the director of the Dallas Diabetes and Endocrine Center, an endocrine practice and clinical research facility. He is also a clinical professor of medicine at the University of Texas Southwestern Medical School at Dallas. He is a member of numerous professional societies and the former president of the Greater Dallas Chapter of the American Diabetes Association and the Texas Diabetes and Endocrine Association.

He is actively involved in diabetes education and is an advisory board member of CADRE (Council for the Advancement of Diabetes Research and Education-www.cadre-diabetes.org). He serves as the representative of The Endocrine Society to NDEP (National Diabetes Education Program sponsored by NIH and CDC).

His clinical and research activities have focused on intensive diabetes management strategies exploring novel therapies and agents to improve glycemic control and to prevent and retard diabetes complications. Dr Rosenstock’s main interest has been early insulin intervention with combination strategies to reach glycemic targets in type 2 diabetes. Over the last 20 years he has participated in hundreds of clinical trials for the development of new oral agents and insulin preparations. He is recognized as a Key Opinion Leader (KOL) in the field of Diabetes and has extensively published on exploring novel therapies to improve glycemic control.

He has more than 200 publications, including peer-reviewed papers and numerous abstracts, and has also contributed to eleven clinics and book chapters on various topics in the field of Diabetes. He is currently an editorial board member of Practical Diabetology and Cardiovascular Diabetology, and is an active reviewer for several journals. He has chaired or been a featured speaker at multiple lectures and presentations in Diabetes both nationally and internationally.

Salomon Banarer, M.D.
Dr. Salomon Banarer graduated with an M.D. from Universidad Peruana Cayetano Heredia in Lima-Peru in 1995. He subsequently finished a 3-year residency program in Internal Medicine at University of Texas Southwestern Medical Center at Dallas. Dr. Banarer was an endocrine fellow at Washington University School of Medicine, where his research with Dr. Philip Cryer focused on the field of hypoglycemia and diabetes.

Dr. Banarer is a member of the American Diabetes Association and has been awarded recognition by the National Committee of Quality Assurance by the American Diabetes Association, Diabetes Physician Recognition Program. (This recognition extends for a 3-year period starting May 2007.) He is Board certified in Internal Medicine, as well as Endocrinology and is fluent in both English and Spanish.

Dr. Banarer joined the Dallas Diabetes and Endocrine Center in October 2005. He spends most of his time in the direct care of patients with a variety of endocrine disorders and is a member of the medical staff of Medical City Hospital at Dallas. Dr. Banarer is also an active clinical researcher, now serving as the primary investigator or sub-investigator of multiple studies.

Outside of work, Dr. Banarer stays busy as husband and father of four active children. He is involved in multiple community institutions and charitable organizations.

Dr. Banarer is a caring and compassionate clinician--always striving to provide excellent medical care in a personalized manner.

Wendy Kniffen, PA-C
Wendy Kniffen graduated from the University of Colorado in 1994 with a Bachelor of Arts in Biology. While there, she served as president of Alpha Epsilon Delta, a pre-medical honor society. She received a Bachelor of Medical Science in Physician Assistant Studies from Midwestern University where she graduated with honors in 1997. Wendy is nationally board certified by the National Commission on Certification of Physician Assistants and licensed by the State of Texas.

From 1997-2004, Wendy worked in family practice where she cared for a wide range of patients of all ages. She especially enjoyed the areas of women’s health, pediatrics, and diabetes care.

It was the challenge of providing excellent, comprehensive care for diabetics that brought Wendy to the Dallas Diabetes and Endocrine Center in 2004. She joined the clinical research team under Dr. Rosenstock as a sub-investigator and is responsible for patient care during their participation in clinical trials.

Wendy resides in Frisco, TX where her other full-time job is raising two small children with her husband. Her family is involved in various church activities and likes to maintain an active lifestyle by going to the gym. Wendy is a very caring, personable practitioner who provides quality medical care for every patient she encounters at the Dallas Diabetes and Endocrine Center.