Bone Health Specialists

The physician specialists of the Bone Health Program are world-renowned experts in research and clinical management of osteoporosis and other bone and mineral diseases. They have many years of experience in this specific field of medicine, also functioning as educators to new generations of specialists. They are faculty of Washington University School of Medicine, Division of Bone and Mineral Diseases and are affiliated with Barnes-Jewish Hospital.

James Avery, MD

Associate Professor of Clinical Medicine

Dr. James Avery, a Washington University trainee and board certified internist, joined the Bone Health Program in May 2011 as a part-time physician. He is a primary care physician at the Grant Medical Clinic in St. Louis, and has been active in the management of osteoporosis for many years. He has been voted one the “Best Doctors in St. Louis” since 2002 by the St. Louis Magazine. He brings his expertise as a general practitioner to our specialty, focusing on osteoporosis. Dr. Avery sees patients in the Bone Health Program at the Center for Advanced Medicine.

Roberto Civitelli, MD

Chief, Division of Bone and Mineral Diseases and Sydney M & Stella H Schoenberg Professor of Medicine

Dr. Roberto Civitelli, the current Chief of the Division of Bone and Mineral Diseases, is a world renowned expert on osteoporosis and bone mineral diseases. Originally trained in Siena, Italy, he has been affiliated with the Division of Bone and Mineral Diseases since 1985, and with the Bone Health Program since its inception. He is a physician-scientist, has authored over 200 publications, and runs an active bone biology program. Dr. Civitelli has served in the leadership of international professional organizations interested in bone health. He currently serves as the Editor-In-Chief of the Journal of Bone and Mineral Research. He sees patients at all Bone Health Program sites.

Kathryn Diemer, MD

Clinical Director of Bone Health Program and Professor of Medicine

Dr. Kathryn Diemer is a highly respected physician and a St. Louis native. She received her medical training at Washington University and has been part of the Bone Health Program since 1989. She is a leading expert on osteoporosis nationally, and has served in leadership roles in the International Society for Bone Densitometry. She lectures nationally and internationally on osteoporosis and bone densitometry, and has been named in the St. Louis Magazine as one of St. Louis’s 100 Best Doctors every year since 2002. She sees patients in the Bone Health Program at Barnes-Jewish West County Hospital.

Carolyn Jachna, MD

Assistant Professor of Medicine

Dr. Carolyn Jachna obtained her MD degree at Northwestern University, in Chicago, IL, in 1998; and completed her residency training in Internal Medicine at Barnes-Jewish Hospital in 2001. Afterwards she was appointed Assistant Professor of Medicine at the University of Kansas, where she also practiced at the Hiatt Osteoporosis Center. She in an expert in osteoporosis and other metabolic bone diseases and joined the Bone Health Program in 2010. She also maintains an active practice in primary care in the BJC network. Dr. Jachna sees patients in the Bone Health Program at Barnes-Jewish West County Hospital.

Betsy Lin, MD

Instructor in Medicine

Dr. Elizabeth (Betsy) Lin received her medical degree and completed her internal medicine residency and endocrine fellowship at the University of California, Irvine, and in part at Stanford University Hospital. She then completed a fellowship in bone and mineral diseases in our center, and joined the faculty of our Division and the Bone Health Program in 2018. Her expertise is in osteoporosis and rare bone disorders in adults. She sees patients in the Bone Health Program at the Center for Advanced Medicine and at Barnes-Jewish West County Hospital.

Mahshid Mohseni, MD

Instructor in Medicine

Dr. Mahshid Mohseni received her medical degree from Isfahan University of Medical Sciences in Isfahan, Iran; followed by an internship in the same Institution. She later completed her internal medicine residency at Joan C. Edwards School of Medicine, in Huntington WV, and her endocrinology fellowship at the University of Miami School of Medicine, in Miami, FL. Dr. Mohseni completed a fellowship in bone and mineral diseases in our center in 2017, and then joined the faculty of our Division and the Bone Health Program in 2018. Her expertise is in osteoporosis and metabolic bone disorders. She sees patients in the Bone Health Program at the Center for Advanced Medicine South County and at Barnes-Jewish West County Hospital.

Nilton Salles Rosa Neto, MD, PhD, RhMSUS

Clinical Fellow

Dr. Nilton Salles Rosa Neto received his medical degree from Universidade Federal do Parana, Brazil, followed by residency, and then a rheumatology fellowship at Universidade de São Paulo. He also holds a PhD in immunology and infectious processes from the same institution. Since 2017, he has worked as a rheumatologist in various medical centers in São Paulo, Brazil. Dr. Salles has served as Sub-Investigator in multiple industry-sponsored clinical trials on the effect of biologicals in rheumatic disorders; and has published 15 research articles. He is currently enrolled in a fellowship in bone and mineral diseases in our center.

Julie Unk, DNP, ANP

Nurse Practitioner

Ms. Unk is an Adult Nurse Practitioner who joined the Bone Health Program in 2015. She completed her nurse practitioner training in 1998 and has treated arthritis patients for the past 17 years, of which 11 years in the Rheumatology Division of Washington University. For 20 years she has been involved in multi-center clinical medication investigations which have led to the availability of many of the medications used today to treat arthritis. She completed her doctorate in nursing practice degree in 2011. Her focus is on osteoporosis disease understanding and treatment adherence. She sees patients in the Bone Health Program at Barnes-Jewish West County Hospital.

Michael Whyte, MD

Professor of Medicine, Pediatrics and Genetics

Dr. Michael Whyte earned his MD degree at Downstate College of Medicine, State University of New York, Brooklyn, NY, and then had residency training in Internal Medicine at Bellevue Hospital in New York City. After his fellowship in Endocrinology, he joined the faculty of our Division in the late 1970s. Dr. Whyte is a world-leading expert in heritable skeletal disorders in children and adults. He directs the Center for Metabolic Bone Disease and Molecular Research at Shriners Hospital for Children, St. Louis, which serves as a national resource for the diagnosis, treatment, and investigation of disorders of bone and mineral metabolism and skeletal dysplasias in children. In addition to his activities at Shriners Hospital, Dr. Whyte sees patients in the Bone Health Program at the Center for Advanced Medicine.

Naga Yalla, MD

Assistant Professor of Medicine

Dr. Naga Yalla completed her internal medicine training and endocrine fellowship at the University of Kentucky. A board certified endocrinologist and internist, Dr. Yalla works on the inpatient diabetes service at Barnes Jewish Hospital. After training in our Division’s clinical program, Dr. Yalla joined the Bone Health Program in July 2013. Her main clinical interests are osteoporosis, hyperparathyroidism, and other metabolic bone diseases. She sees patients in the Bone Health Program at the Center for Advanced Medicine.