Visit our Locations page to learn more about your local Center Director.
William Reilly, M.D., National Medical Director
Dr. Reilly attended undergraduate school at Purdue University, where he earned a Bachelor of Science in Aeronautical Engineering. Following undergraduate school, Dr. Reilly earned his Medical Doctor degree Cum Laude from Georgetown University Medical School, graduating with honors. Upon completion of his residency at the prestigious Cleveland Clinic, Dr. Reilly practiced orthopedic surgery in Texas for more than 20 years. He has served as Chief of Surgery and President of a Texas hospital governing board, and has been a design consultant for Total Joint Replacements. Dr. Reilly is a “Certified Principal Investigator” for medical research and has directed multiple medical research studies. After himself experiencing symptoms related to low testosterone, Dr. Reilly sought specialized training in Age Management Medicine and has completed multiple advanced hormone replacement courses. He established a successful age management practice, and is the National Medical Director for Low T Centers. Dr. Reilly is a father of three grown children. His major outside interests include health and fitness in the aging male, sports, and piloting aircraft.

Kelly Cook, MPAS, PA-C, National Quality Assurance Director
Kelly Cook graduated from Hardin Simmons University in 1998. During his time at HSU, he received a Bachelor of Science degree. While earning this degree he was involved in many on campus activities, and played football, where he was part of teams won that won multiple conference championships. For Physician Assistant school, Kelly attended the University of North Texas Health Science Center, where he received the degree Master of Physician Assistant studies in 2003. Kelly has worked in family practice, and orthopedics over the years, where he was part of some of the most respected teams in the orthopedic field. This orthopedic work allowed him to work with athletes of all levels, including many professional athletes, in multiple sports. His family practice experience was with a large, fast paced group, in his home town of Coppell, Texas. Including his time with the Low T Center, this caring PA has been providing excellent care to patients for a total of 11 years. Kelly is married and lives locally with his three children, where he is involved in many volunteer activities with their schools and sporting teams.

Sudipta Chaudhuri, M.D.
Dr. Chaudhuri started his undergraduate career at University of Texas at Austin earning a Bachelor of Science degree in Chemical Engineering. He went on to complete a master’s degree in Public Health at University of North Texas Health Science Center in 2001. Dr. Chaudhuri began his medical career at Texas College of Osteopathic Medicine and graduated in 2005. He went on to complete his Internal Medicine residency in 2008 at Seton Hall University of Graduate Medical Sciences / St. Michael’s Medical Center in New Jersey and subsequently completed his Board Certification. Dr. Chaudhuri moved to Texas where he worked as medical consultant and physician for several urgent care centers in the Houston area. Prior to Low T Center, Dr. Chaudhuri worked as medical director for an outpatient clinic at PCP for Life primarily working with underserved populations. Dr. Chaudhuri is fluent in English and Spanish, is married, and has a daughter.

Dr. Carlos Herrera
Dr. Herrera graduated from Harvard Medical School in 1983. He has trained at the Central Texas Medical Foundation, the University of Texas School of Public Health and at the U.S. Food & Drug Administration. Dr. Herrera worked as an associate professor at the University of Texas Medical School at Houston. He is Board Certified by the American Board of Internal Medicine.

Lawrence E. Huber, D.O.
Dr. Huber left a successful career as district supervisor for a multi-state grocery chain to attend the University of Texas at El Paso where he majored in chemical engineering. While there, he became interested in medicine, and moved to Fort Worth to attend the Texas College of Osteopathic Medicine. Dr. Huber received his Doctorate of Osteopathy in 1987, and is Board Certified in Family Practice. His 25 years of experience have been diverse–serving many years as a solo family practitioner, as well as serving the Federal Bureau of Prisons as Clinical Director in Oklahoma City and as Hospital Clinical Director at the prison hospital in Fort Worth. Dr. Huber currently resides in west Fort Worth with his wife of 45 years in a house he and his son designed and built from the ground up.

Jason Kouri, M.D.
Dr. Kouri graduated Magna Cum Laude from the University of California at Irvine in 1991 and earned Bachelor of Science in Biological Sciences. He continued his graduate education at the School of Medicine at the University of California, San Diego where he received a Medical Doctor degree in 1996. Dr. Kouri then entered the United States Navy as a Family Practice intern and went on to become a General Medical Officer. He spent most of his four years in the Navy caring for Marines and Sailors on land and at sea while attached to a Marine Expeditionary Unit. Upon honorable discharge, Dr. Kouri practiced Family Medicine for five years caring for American Indians on several reservations in Southern California. In 2005, Dr. Kouri began to focus on Urgent Care, Occupational and Integrative Medicine. As part of this effort, Dr. Kouri focuses on leadership and wellness in preparation for the challenges of an aging population. Dr. Kouri is married and he and his wife have five children.

Joseph West, M.D.
Dr. West received his undergraduate degree from the University of Texas at Austin and earned a Master of Science degree majoring in Biostatistics from the University School of Public Health at Houston. Dr. West went on to earn his medical degree at Baylor College of Medicine. He completed his surgical internship at Mt. Zion Medical Center in San Francisco and his General Urology residency at Baylor College of Medicine Affiliated Hospitals. Dr. West is Board Certified by the American Board of Urology. Prior to joining Low T Center, he maintained a private practice in Urology for 32 years.

Raymond Westbrook, D.O.
Dr. Westbrook attended undergraduate school at Texas Tech University, and graduated from the University of North Texas Health Science Center in Fort Worth in 1999 as a Doctor of Osteopathy. He completed his residence in the Internal Medicine division of Methodist Hospital in Dallas, Texas, where he served as Chief Resident during his final year. Following completion of his residency, Dr. Westbrook established a successful, traditional Internal Medicine practice in Arlington, Texas. During the course of treating his patients, Dr. Westbrook developed a professional interest in focusing on the treatment of hormonal deficiencies. This interest led him to join the team at Low T Center where he currently serves as a supervising medical director.

Kynan Williams, M.D.
Dr. Williams graduated from the University of Texas at Austin in 1999 with a degree in Microbiology. From there he continued his studies at the University of Texas Southwestern Medical School where he earned his Medical Doctor degree. After graduating from medical school, Dr. Williams completed his Family Medicine residency at the Texas A&M Health Science Center in College Station, Texas. He is Board Certified by the American Board of Family Medicine. Dr. Williams is married and enjoys spending time with family, traveling, and attending sporting events.

Johannes Ramirez, M.D., M.S.
Dr. Ramirez earned his undergraduate degree from the Universidad Centro de Investigacion in the Dominican Republic and went on to earn his medical degree with honors from the Universidad Central del Este. He later earned a Master of Science in Physiology and Neurobiology from the University of Medicine and Dentistry of New Jersey. Dr. Ramirez is Board Certified by the American Board of Obstetrics and Gynecology. He enjoys spending time with family, being outdoors and playing the guitar.

James Franklin Owen Day, M.D.
Dr. Day started his undergraduate career at the University of Indiana where he received his bachelor’s degree in 1963. He attended medical school at the Indiana University School of Medicine and earned a master’s degree in 1967. Dr. Day completed his internship at the University of Texas Medical Branch of Internal Medicine in 1968. He began residency at Saint Joseph Hospital in General Practice and Internal Medicine at the University of Colorado Health Science Center. He continued on with his fellowship at the University of Colorado Health Science Center where he entered Academic Medicine as an Associate Clinical Professor.

James R. Mosby M.D., FACEP
Dr. Mosby attended Howard University in Washington, D.C. and received a Bachelor of Science in Zoology with a minor in Chemistry. He then received his Medical Doctor degree from Indiana University School of Medicine. Dr. Mosby’s residency training was completed at University of Colorado Health Science Center. He has practiced Emergency Medicine for the past 39 years and has been Medical Director of the Emergency Department at Spanish Peaks Regional Health Center in Walsenburg, Colo. for the past five years. Dr. Mosby enjoys participating in medical missions to third world countries, and also enjoys hiking, biking, skiing and quality time with family and friends.

Aaron Hanshaw, D.O.
Dr. Hanshaw earned a Bachelor of Science in Biology at Wright State University. He later completed with doctoral training at the Ohio University College of Osteopathic Medicine, graduating in 2006. Dr. Hanshaw completed postgraduate training at Grandview Medical Center in Dayton, Ohio, and is Board Certified in Family Medicine as well as Hospice/Palliative Medicine. Dr. Hanshaw is active with his church, and is an avid sports fan. He is married with three children.

Brian Seifferth, M.D.
Dr. Seifferth graduated from Ohio State University in 1989 with a Bachelor of Science in Biology. He went on the Medical School at the Ohio State University College of Medicine, earning a Medical Doctor degree in 1994. Dr. Seifferth completed his residency in Emergency Medicine at Ohio State University Wexner Medical Center, and has served as the Emergency Department Medical Director, and Medical Staff President for Memorial Hospital of Union County. Dr. Seifferth is Board Certified in Emergency Medicine. He resides in Dublin with his wife and three daughters.

William Price, D.O.
Dr. Price completed his undergraduate studies at Oklahoma State University graduating with a Bachelor of Science in Medical Technology. During his time in school, Dr. Price joined the Army, completing Airborne School, and served as a Fire Support Specialist at Fort Carson, Colorado. He worked as a medical technologist prior to medical school. Dr. Price attended Oklahoma State University’s College of Osteopathic Medicine, graduating with a Doctor of Osteopathy in 2002. He completed a Family Practice internship and residency through Oklahoma State University and Tulsa Regional Medical Center, serving as Chief Resident during his final year of residency. Dr. Price practiced medicine in the Tulsa area for eight years before joining Low T Center.

Henry Ramirez, M.D.
Dr. Ramirez earned a Bachelor of Science from Midwestern State University in 1996. Continuing his education, he completed a Master of Occupational Therapy at Texas Woman’s University in 1998. Dr. Ramirez attended medical school at Saba University School of Medicine where he received his Medical Doctor degree in 2004. Dr. Ramirez returned to Texas and completed his residency at Texas Tech University Health Center and received awards for excellence in teaching. Dr. Ramirez became Chief Resident in 2008, and following his residency, continued to work with Texas Tech University Health and Science Center as an Assistant Professor, as well as practicing with Southern Oklahoma Women’s Health P.C. He is fluent in English and Spanish, is married and has three children.

William Sobat, M.D.
Dr. Sobat is Board Certified in General Surgery and is a Fellow of the American College of Surgeons. He graduated from the Indiana University School of Medicine with Honors and has practiced medicine in Indianapolis for over 40 years. Dr. Sobat served as Director of the Surgery Residency program at Methodist Hospital from 1975-1991. He was a pioneer in the kidney transplant program at Methodist Hospital. Dr. Sobat focused on immunology and endocrine surgery as well as nutritional support in hospitalized patients. He was chairman of the Indiana State Liaison Committee on cancer care of the American College of surgeons for six years. Dr. Sobat started the Colonoscopy Lab at Methodist Hospital, as well as the Noninvasive Vascular Laboratory. From 2005 until 2008 he served as Director of Integrative Medicine at Indiana University West Hospital. During this time Dr. Sobat focused on the role of nutrition and hormone imbalance in health and wellness, as well serving as a nutrition consultant and for the Comprehensive Breast Center at Indiana University North. In addition to caring for patients at Low T Center, Dr. Sobat continues to serve as a volunteer clinical professor of surgery at the Indiana University Department of Surgery.

Anthony L. Bilotta, D.O.
Dr. Bilotta received his undergraduate degree at the University of Illinois. He worked in medical education and EMS for eight years prior to entering the D.O. program at Des Moines University, where he graduated in 1985. Dr. Bilotta’s Family Medicine residency was completed at the Chicago Osteopathic Medical Center in 1987. He has served as an ER staff physician at trauma centers in the Chicago area and was the Medical Director of an Occupational and Immediate Care center for ten years. Dr. Bilotta has held faculty positions at both Northwestern Memorial Hospital and Midwestern University. In addition to Low T Center, he practices in Willowbrook, and serves as the Flight Surgeon for the Chicago Air and Water Show. In his free time, Dr. Bilotta travels to Dyersville, Iowa (from Field of Dreams) to assist in a rural emergency room.

Frederic M. Ettner, M.D.
Dr. Ettner is a Board Certified Family Physician whose 37-year practice has included the delivery of over 3,000 babies, caring for newborns, pediatrics, adult and geriatric patients. He is active in hormone replacement practice, and serves as a clinical instructor for the Feinberg School of Medicine at Northwestern University, Pritzker School of Medicine at the University of Chicago, and Keck School of Medicine at the University of Southern California. Dr. Ettner is active in public service activities and was previously a Medical Director of Alternative Medicine for Advocate Health Care, a consultant to the Head Start Program, and a consultant to the Public Guardian of Cook County, Ill.

Robert Noven, M.D.
Dr. Noven has been practicing medicine in Chicago since 1987. He completed his medical school and residency training at the Feinberg School of Medicine at Northwestern University and at Northwestern Memorial Hospital. Dr. Noven has participated in teaching activities at the medical school since 1987. He has been involved in Concierge Medicine, Primary Care Internal Medicine, Occupational Medicine and Aviation Medicine. Dr. Noven has worked as an Aviation Medical Examiner and as the Medical Director for United Airlines Health Clinic at O’Hare Airport. He has had a long-term interest in men’s health issues and serves as a Medical Director in Illinois.

Thomas Oyer, M.D.
Dr. Oyer completed his pre-medical and medical education at Ohio State University. He completed a rotating internship in the Air Force at Wright-Patterson Air Force Base (AFB), and spent the next two years as a Flight Surgeon at Bergstrom AFB in Austin, Texas. After discharge from the Air Force Dr. Oyer returned to his home area and practiced Emergency Medicine for nine years as the director of an emergency department for the last six of those years. He built his own urgent care/general practice center in Lima, Ohio, and after selling that facility, continued General Practice for an additional three years. Dr. Oyer then made the transition to Occupational Medicine, which he has practiced for approximately 18 years before joining Low T Center.

Glen Anderson, M.D., M.P.H.
Dr. Anderson is a native of Mississippi and attended the University of Mississippi where he received his Bachelor of Science in Biology in 1984. He later earned a Medical Doctor degree at the University of Mississippi School of Medicine in 1988. Dr. Anderson interned at the University of Mississippi Medical Center where he trained in Internal Medicine and Emergency Medicine. He became the Assistant Professor of Medicine in the Emergency Medicine Division at the University Medical Center until 1994. In 1996, Dr. Anderson graduated from the University of Alabama Birmingham where he earned a Master of Public Health. He has an extensive medical background and resides and practices in Tennessee. Dr. Anderson is married and has four children.

Stephen Stevenson, M.D.
Dr. Stevenson completed medical school at Kansas City University of Medicine in 1987. He completed a residency in Family Medicine in 1990 through the Kansas University Department of Family Medicine. Dr. Stevenson is Board Certified in Family Medicine and practiced Out-Patient Family Medicine up until he started working at the Low T Center in March of 2012. He and his wife live on a farm and raise organic fruits and vegetables.

Glenn Simon, D.O.
Dr. Simon received his medical degree from Kansas City University of Medicine and Biosciences in 1998, and three years later completed his residency in Family Medicine. He practiced Emergency Medicine for 15 years and was Medical Director of an addiction medicine clinic for nine years prior to becoming medical director of the Low T Center. Dr. Simon holds a Master of Science in Human Biology from the University of Bridgeport and a doctorate in Chiropractic Medicine from Cleveland Chiropractic College, where he also served as an associate professor for four years. He is Board Certified by the American College of Osteopathic Family Physicians and brings a broad base of medical training as well as over 20 years of experience in direct patient care to Low T Center. Dr. Simon is married with four children.