Physicians
Joan E. Baumer, MD, FAAFP
Dr. Baumer is the President and Chief Medical Officer of MassTex Imaging, LLC. She has over 45 years of experience in medicine, as she graduated in 1978 from Davis University in California and has completed both residency and fellowship in Family Medicine. Her career has expanded to not only direct patient care, but chairing departments, supervising other physicians, and developing programs to better serve her patients. Dr. Baumer is one of the founding members of MassTex Imaging, LLC and is also a member and president of DiagnosTEX and Professional Imaging, LLC in Texas. Separate from Dr. Baumer’s duties as president and direct patient care, she runs and chairs the Family Medicine Department at John Peter Smith Hospital in Texas.
Michael Stevens, MD
Dr. Stevens joined MassTex Imaging in 2012 and serves as Medical Director. He is a graduate of Tufts University School of Medicine and the Tufts/New England Medical Center Family Medicine Residency, where he served as Academic Chief Resident. Following five years of private practice primary care, Dr. Stevens shifted his clinical focus to swallowing disorders. He has 15 years experience in MBSS, and dysphagia management with a focus on the geriatric population. Dr. Stevens has held teaching positions at Tufts University School of Medicine and Boston University School of Medicine.
Stephen Brand, MD, PhD
Dr. Brand joined MassTex Imaging in 2012 where he serves as radiation safety officer. He graduated in Medicine from University of Western Australia and also holds a PhD in Physiology. Subsequently, he was a research fellow at the University of Copenhagen Denmark and Fellow in Endocrinology & Gastroenterology at the Massachusetts General Hospital, Harvard Medical School. For ten years, Dr Brand was on the faculty in the Gastrointestinal Unit, Massachusetts General Hospital achieving the rank of Clinical Associate in Medicine and Associate Professor of Medicine at Harvard Medical School. He was an internationally recognized leader in gastroenterology research and was elected to American Society for Clinical Investigation. He has published over 75 papers in leading journals. He then pursued a successful career in the Bio Pharmaceutical Industry as a research director at Proscript, Tanabe Research Laboratory, and Waratah Pharmaceuticals leading the discovery and development of novel drugs, for the treatment of cancer, inflammatory diseases and diabetes, which are now in the clinic.
Beverly Timerding, MD
Dr. Timerding graduated from University of Cincinnati College of Medicine and completed her residency in Emergency Medicine at Allegheny General Hospital in Pittsburgh, Pennsylvania in 1986 along with board certification. She subsequently entered an emergency medicine research fellowship in Cincinnati completing multiple studies concerning the treatment of the complications of severe hypovolemic shock and early studies of anti-thrombolytics in the treatment of stroke. She received the Smith, Kline and French/Emergency Medicine Foundation Fellowship Award.
After practicing academic and clinical emergency medicine at Wake Forest University in Winston-Salem, NC until 2001, she entered a busy emergency medicine practice in Omaha, Nebraska. In 2012 to be nearer to family, she moved to Massachusetts and continued working with emergency department patients at some of the most critical times in their lives.
Martha Martents, MD
Dr. Martents is an Internal Medicine Specialist with over 45 years of experience in the medical field. She graduated from Armenian Medical Institute, Faculty Of Medicine medical school in 1977. She is affiliated with Massachusetts General Hospital and Mount Auburn Hospital.
Diane Dickinson, MD
Dr. Dickinson is a family practice physician. She attended the University of Massachusetts Medical School via a winding road: starting her health care work as a nurses aide and then attended nursing school at MGH in Boston, becoming an RN. As a physician she worked in Northern California for 30 years after doing residency training there. She moved back to New England in 2020. She has worked in many different sites, often overlapping, including: private practice, community clinic, hospitalist in a community hospital, supervisor of a public health clinic, and as an attending physician at skilled nursing facilities.
Tina Gardner, MD
Dr. Gardner is a retired US Army doctor, a veteran of the war in Afghanistan. A board certified family physician, she completed fellowship training at UConn to become a board certified geriatrician in 2009. She also completed a tour of duty as a teaching faculty member in Family Medicine at Tripler Army Medical Center in Hawaii.
Maria Kim, MD
Dr. Kim decided to become a physician at age 7 y.o.
Thanks to her dedicated Middle School Science teachers, she became fascinated with science and graduated from the Bronx High School of Science in N.Y.C. where she participated in research at the Memorial Sloan-Kettering Institute competing at the National level with other students. Dr. Kim graduated from the Boston University School of Medicine and completed her residency at the Boston City Hospital and Boston Medical Center in Internal Medicine. She has experience in all aspects of Internal Medicine and loves practicing medicine, especially caring for the geriatric population.
Mario E. Motta, MD, FACC
Dr. Motta had been in practice at North Shore Medical Center in Salem, Massachusetts, since 1983, recently retiring in 2022. He is a graduate of Boston College, with a BS in physics and biology, and of Tufts Medical School. He is board certified in Internal medicine, the American College of Cardiology, and of the American Society of Nuclear Cardiology. He is an associate professor of medicine at Tufts University School of Medicine. Dr. Motta has long been active in organized medicine, both in the American Medical Association (AMA) and in the Massachusetts Medical Society (MMS), holding a number of posts through the years. He is a past President of the MMS, and represents Massachusetts at the AMA. He was elected and served 8 years on the AMA council of Science and Public Health, and then elected to the Board of Trustees of the AMA in 2018, recently completing his term. In May of 2023 at its annual meeting, the MMS awarded Dr. Motta its highest honor, the “Award for Distinguished Service.”
Also, Dr. Motta has a lifelong interest in astronomy, and has hand built a number of telescopes and observatories through the years to do astronomical research, including his entirely homemade 32 inch, F6 relay telescope located in Gloucester, MA. He has been awarded several national awards in astronomy, including the Las Cumbras award from the Astronomical Society of the Pacific in 2003, and also the Walter Scott Houston award from the northeast section of the Astronomical League, and in 2017 the Henry Olcott Award from the American Association of Variable star Observers (AAVSO). He has served as a president of the ATM’s of Boston, and has served as a council member of the AAVSO, and is a past president as well. He has also served on the Board of the IDA. He has worked on light pollution issues, and published several white papers on LP as a member of the AMA council of science and public health. He served on a UN committee (COPUOS) representing the AMA on light pollution for a worldwide effort to control LP and satellite proliferation. Finally, several years ago the International Astronomical Union awarded Dr. Motta an asteroid in part for his work on light pollution as well as amateur research, asteroid 133537MarioMotta.
Leslie C. Huff, MD
Dr. Huff graduated ranked first in her medical school class at the University of Kentucky College of Medicine. She received awards and honors during medical school including the Outstanding Academic Performance in Internal Medicine as a graduating senior. Dr. Huff completed her internship and residency at the Johns Hopkins Hospital in Baltimore, Maryland. She is a double board-certified pathologist who enjoyed a long career in private practice, after which she transitioned into wellness and complementary medicine following additional training with Harvard Medical School in Boston, Massachusetts.
Speech Language Pathologists
