Houston Methodist. Leading Medicine.
Houston Methodist. Leading Medicine

Our Physicians

Our Physicians

Ana Blackmon, MD

Ana Blackmon, M.D., F.A.C.P.

Dr. Blackmon graduated from the University of Texas Southwestern Medical School and completed her internship and Internal Medicine residency at The National Naval Medical Center in Bethesda, MD. Active duty service took Dr. Blackmon to Yokosuka, Japan where she served three years practicing Internal Medicine at the Yokosuka Naval Hospital.

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Ronnie Gentry, M.D.

Ronnie Gentry, M.D., F.A.C.P.

Dr. Gentry obtained his medical degree and completed his residency at the University of Texas Medical School at Houston. He has practiced in Houston for over 10 years and is board certified in Internal Medicine. He is member of the American College of Physicians, Texas Medical Association, and Harris County Medical Society.

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Eric Mueller, M.D.

Eric Mueller, M.D.

Dr. Eric Mueller specializes in general internal medicine and is board certified by the American Board of Internal Medicine. He received his undergraduate degree from West Texas A&M University and his medical degree from The University of Texas Medical School at Houston. He completed his residency at The Methodist Hospital and was chosen as chief resident for his final year.

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Christopher Robben, MD

Christopher Robben, M.D., F.A.C.P.

Dr. Robben graduated from New York University School of Medicine and completed his Internal Medicine residency at Baylor College of Medicine in Houston. He served four years in the U.S. Navy Medical Corps at the National Naval Medical Center in Bethesda, MD and the Naval Hospital in Rota, Spain.

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Sheena Gibbons Stubbers, MD

Sheena Gibbons Stubbers, M.D., F.A.C.P.

Dr. Stubbers received her bachelor’s degree in biology and chemistry from Malone College in Ohio. She has completed her graduate education in medicine and training at the University of Texas at Houston. She now serves the general internal medicine needs of patients in the Greater Houston area as a founding member of the Internal Medicine Group (IMG) at The Methodist Hospital. Her Middle Eastern and European familial background along with her fluency in English, Arabic, French and Spanish, help bridge the gap between the needs of her patients and the resources available to her in the Texas Medical Center. Prior to serving patients at The Methodist, Dr. Stubbers started her private practice at The Diagnostic Clinic of Houston and honed her academic skills as an Assistant Professor at Texas Tech University at El Paso serving as Chief of General Medicine, Director of the Medicine Clinics, and to her students as clinical assistant professor. In order to better serve her patients Dr. Stubbers is board certified by the American Board of Internal Medicine, and is a Fellow of the American College of Physicians.

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