Our Doctors

ER Board-Certified

Quality care. Guaranteed.

Being sick or injured is hard enough. You don’t need the added stress of worrying if your doctor is qualified and trained to correctly diagnose and treat your condition, especially if it’s life threatening or when your loved one is the patient. At America’s ER, we strive to make our patients feel confident with the care they receive and that’s the reason we only hire board certified ER doctors to staff our facilities. Having trained in world-renowned medical centers from across the nation, the physicians managing your care at America’s ER have the knowledge, experience and excellence you can trust. As an added benefit, these highly qualified ER physicians also staff our 24/7 urgent care center, so regardless which department you’re in, you will be treated only by the best. And why shouldn’t you expect the best? We sure do.

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TERRY J. LETSINGER, M.D., F.A.C.E.P.

As an athlete himself, Dr. Letsinger is a favorite among our high school and college students. While musculoskeletal and long bone injuries are his bread and butter given his extensive knowledge of human anatomy, having trained at both the University of Cincinnati and Scott and White, there is nothing he can’t diagnose and treat. A great doctor with a great talent in caring for patients and their families with the compassion and warmth you’d expect from a big teddy bear like him.

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ANDREW S. BUTLER, M.D.

As our newest physician, Dr. Butler is by no means new to emergency medicine. Trained at University of Cincinnati’s prestigious emergency medicine residency program and with almost a decade of experience as a practicing ER board-certified doctor, Dr. Butler is fully prepared to handle anything that comes through our doors. His friendly smile and gentle demeanor put every patient completely at ease.

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KIMBERLEY M. WAASO, D.O., F.A.C.E.P., MEDICAL DIRECTOR

Dr. Waaso completed her emergency medicine residency at Michigan State University in one of the country’s most demanding programs. With over 16 years of experience as a practicing emergency room physician, Dr. Waaso’s impressive talent comes from her extensive experience as one who has seen it all. It’s this experience and talent that has placed her in positions as team doctor for the Green Bay Packers and now as medical director for America’s ER and the EMS Medical Director for Atascocita Fire Department and EMS Services.

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Rick G. Lorentz, M.D.

Always steady as a rock, there is no emergency situation that rattles Dr. Lorentz. His straight to business, no-nonsense clinical style and infamously friendly bedside manner match his abilities to keep a calm and level head during the chaos of the emergency room. With tens of thousands of hours in the ER and a background in trauma surgery, Dr. Lorentz’s vast clinical skills are a valuable asset to America’s ER.

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Mark E.S. Escott, M.D., M.P.H., F.A.C.E.P.

With more letters behind his name than the alphabet, Dr. Escott’s clinical knowledge is truly impressive. With the slightest information and clinical exam, his tremendous knowledge base gets him to the right diagnosis every time. Currently serving as Rice University’s Medical Director, Montgomery County Health Care District’s Director of Public Health and his most recent appointment to EMS Medical Director for Austin County EMS, Dr. Escott is a incredible addition to the team.

Why shouldn’t you expect the best?
We sure do.