Joan E. Baumer, MD, FAAFP
The President and Chief Medical Officer of MassTex Imaging, LLC. She has 32 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. She a family medicine physician and has developed the skills and knowledge to work alongside the speech language pathologist to improve patient care around dysphagia management. 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. Dr. Baumer truly understands the necessity of not only providing a Modified Barium Swallow Study to determine safe swallow strategies, but the importance of looking at the whole patient separate from the MBSS. This is why MassTex Imaging is more than just a MBSS mobile practice, but a medical practice that focuses on Dysphagia consultation including MBSS, and provides both initial consultations to patients as well as continuity of care.
Stephen Brand, MD, PhD
Dr. Brand 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. Since 2006, Dr Brand has specialized as physician in diagnostic radiology to diagnose disorders of swallowing and esophageal function.
Daniel P. DeGruttola, Jr, MD
Dr. DeGruttola joined MassTex Imaging, LLC in December 2009. He has worked for more than five years in the field of dysphagia by performing evaluations and conducting an extensive number of Modified Barium Swallowing Studies. As a diplomat of the Board of Physical Medicine & Rehabilitation, his knowledge of swallowing dysfunction and rehabilitation augments the strong clinical performance of the Speech Language Pathologist.
Clement J. Grassi, MD, FSIR
Dr. Grassi joined MassTex Imaging in December 2013. Dr. Grassi is a Board Certified Radiologist with a BA in Biology from Harvard College and an MD from Tufts University School of Medicine. He completed his radiology residency at Beth Israel/Deaconess Hospital. Dr. Grassi has performed numerous Videoflouroscopic studies during his career and continues as a staff Radiologist at NE Baptist Hospital.
Olena Marta Saikewicz, MD
Dr. Saikewicz joined MassTex Imaging in June 2014. Dr. Saikewicz graduated from State University at New York at Buffalo and completed her residency in Radiology at BU Medical Center. She brings years of experience performing Videoflouroscopic Studies in various NE hospitals. Dr. Saikewicz is certified by the American Board of Radiology.
Michael Stevens, MD
Dr. Stevens joined MassTex Imaging in June 2012. 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 mechanics/disorders and dysphagia pathophysiology. He has four years experience in MBSS, dysphagia consultation 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, and has served as Medical Director for a company that specialized in diagnostic testing for swallowing disorders.
Joan F. Tryzelaar, MD FACS, FACCP, FAPWCA, CWSP®- Sept 2017
We welcomed Dr. Tryzelaar in September. Dr. Joan Tryzelaar is a licensed physician and a graduate from University of Leiden Medical School in Leiden, Netherlands. Following graduation in 1972, he completed his Internship at Princeton Medical Center in New Jersey and a General Surgeon Residency at the Harvard Surgical Service of New England Deaconess Hospital in Boston, followed by a residency in Cardiovascular and Thoracic also at New England Deaconess Hospital and Pediatric Cardiac Surgery at Children’s Hospital Medical Center in Boston, completed in 1981.
He practiced as a cardiothoracic and vascular surgeon at the Maine Medical Center in Portland, Maine from 1981-2001, and subsequently helped create a cardiac surgery program in Tuzla, Bosnia Herzegovina, being actively involved with that programs till 2007. After retiring, he became a Certified Would Specialist and presently works part-time as a provider at the Chronic Wound Care Clinic of York Hospital in Maine.
Dr. Tryzelaar received Video-flouroscopic training at MTI and he brings with him a focus from his training and prior practice that includes esophageal diseases to complete the dysphagia consultations.
Genevieve von Walstrom, MD
Dr. von Walstrom began a career in research as an undergraduate at the University of Vermont. Her work focused on the use of multiple displacement amplification (MDA) in the investigation of human papilloma virus (HPV) physical status and continued in cancer based research studying the CDKN2A tumor suppressor gene in the development of Familial Melanoma. Both studies were published in the Journal of Clinical Pathology and the journal of Human Mutation in 2007 and 2011, respectively.
Before matriculating into medical school Dr. von Walstrom co-published another paper with the Department of Radiation Oncology at Downstate Medical University studying a predictive assay suitable for tumor surgical isolates using hybrid spheroids in suspension. Her work was published in the prestigious peer reviewed journal Acta Oncologica, the official journal of the five Nordic oncological societies.
After graduating from medical school with honors, Dr. von Walstrom began training in Obstetrics and Gynecology at New York Methodist Hospital – A Weill Cornell affiliate. Dr. von Walstrom received awards for her exceptional patient care and professionalism as a resident physician, but she is most proud of the work she did with patients suffering from gynecologic malignancies. Working with clinical teams of gynecologic oncologists at three neighboring academic institutions, Dr. von Walstrom investigated the utility of the ChemoFx® assay in predicting patient response to chemotherapy, making individualized, tumor specific cancer treatment possible. Dr. von Walstrom presented her research at multiple medical society meetings and research symposiums across the country; her work was published in the Journal of Clinical Oncology in 2013.
Dr. von Walstrom is also an avid writer and published poet. Her most recent interests focus on exploring the art of listening, storytelling, and the Spoken Word.
Frank J. Vittimberga, M.D., F.A.C.S
Dr. Frank Vittimberga is a licensed physician and a Harvard College graduate. Following graduation, he graduated from Tufts University Medical School where he was elected Class President. He completed his internship and residency in General Surgery at the Boston City Hospital. His vascular surgery fellowship training was completed at Baylor University, Houston Texas under the tutelage of the highly esteemed surgical pioneers, Drs. Michael De Bakey and Denton Cooley. He also served 2 years the United States Air Force based in Texas where he performed over 600 general and vascular surgeries during the Viet Nam war.
Returning to Boston, he joined Dr. Isaac Mehrez at the Mount Auburn Hospital in Cambridge, MA where he developed the vascular surgery program teaching hundreds of medical interns, students and surgical residents. A gifted teacher, he holds the position of Clinical Professor of Surgery at Harvard Medical School. A recipient of many professional awards including Boston Magazine’s prestigious Top Doc Heroes 2013 Award for saving the life of Officer Richard Donahue, who was critically injured during a shootout with the Boston Marathon bombing suspects. Dr. Vittimberga is double board certified in general and vascular surgery.
Speech Language Pathologists