Dr. Li is chair of the Division of Allergic Diseases in the Department of Internal Medicine and a board-certified asthma and allergy specialist. He hopes his expertise and the information on the site educates health care consumers in an area of rapid change both in medications and diagnoses. (more...)

Joanne Koenig Coste is a Caring.com Alzheimer's Expert and an outspoken advocate for patient and family care since 1973. She is the author of Learning to Speak Alzheimer's. Also, she currently is in private practice as an Alzheimer's family therapist. Ms. Koenig Coste also serves as President of Alzheimer Consulting Associates, implementing state-of-the-art Alzheimer care throughout the United States.

Dr. April Chang-Miller is board certified in internal medicine and rheumatology and is a consultant in the Division of Rheumatology and Internal Medicine at Mayo Clinic in Scottsdale, Ariz.

Dr. Chang-Miller's primary field is rheumatology with special interests in inflammatory joint diseases called seronegative spondyloarthropathies such as ankylosing spondylitis and psoriatic arthritis. She also cares for patients with rheumatoid arthritis and polymyalgia rheumatica. (more...)

Dr. Moynihan is a consultant in medical oncology at Mayo Clinic and an assistant professor at Mayo Clinic College of Medicine. He is board certified in internal medicine, medical oncology, and hospice and palliative care medicine. He did his medical oncology training at Johns Hopkins Hospital in Baltimore, and then went on to the University of Minnesota and St. Paul Regions Medical Center in St. Paul, Minn., for seven years before moving to Mayo Clinic in 1999. Dr. Moynihan is director of the palliative care consult service and associate medical director of the Mayo Clinic hospice. (more...)

Dr. Behrenbeck is a noninvasive cardiologist, specializing in cardiovascular (CV) imaging modalities (echocardiography, nuclear cardiology, and CT), coronary artery disease and prevention of coronary artery disease. His research interests are the application of imaging technology to early recognition and treatment of atherosclerosis. He is passionate about patients' involvement in their health issues. (more...)

Dr. Michael Picco has been with Mayo Clinic since 1999. He is board certified in internal medicine and gastroenterology. Dr. Picco is an assistant professor of medicine at Mayo Clinic College of Medicine and a consultant in gastroenterology at Mayo Clinic in Jacksonville, Fla. (more...)

Martica Heaner, Ph.D., M.A., M.Ed., is a Manhattan-based exercise physiologist and nutritionist, and an award-winning fitness instructor and health writer. She has a Ph.D. in behavioral nutrition and physical activity from Columbia University, an M.A. in applied physiology and an M.Ed. in nutrition, both from Columbia University, and a B.A. from Smith College in English and exercise science. She is also a NASM-certified personal trainer and teaches group-fitness classes including Spinning, body sculpting and aerobics at NYSC in New York City. (more...)

Robert Danoff, D.O., M.S., is a family physician and program director of The Family Practice Residency, as well as the combined Family Practice/Emergency Medicine Residency programs at Frankford Hospitals, Jefferson Health System, Philadelphia, Pa. (more...)

Dr. Jay Hoecker, an emeritus consultant in the Department of Pediatric and Adolescent Medicine, brings valuable expertise to MayoClinic.com in general and primary care pediatrics. He has a particular interest in infectious diseases of children. (more...)

Karen Collins, M.S., R.D., C.D.N., serves as the nutrition advisor to the American Institute for Cancer Research (AICR). Karen writes two syndicated weekly columns, "Nutrition Notes" and "Nutrition-Wise," distributed by AICR. (more...)

Joseph L. Matthews is a Caring.com senior editor, an attorney, and author. From 1975 to 1977 he taught at the School of Law at the University of California, Berkeley. He is the author of numerous books, including Social Security, Medicare, and Government Pensions; Long-Term Care: How to Plan and Pay for It; How to Win Your Personal Injury Claim; and The Lawyer Who Blew up His Desk.

As medical editor-in-chief, Dr. Roger Harms is excited about the potential for MayoClinic.com to help educate people about their health and provide them the tools and information to live healthier lives. (more...)

Dennis M. Robertson was born in South St. Paul, Minn., and grew up in a musical family on the Mississippi River. He completed his undergraduate and graduate training at the University of Minnesota, where he received a B.A., B.S. and M.D. (more...)

Dr. Sandhya Pruthi, certified by the American Board of Family Practice, has been practicing medicine at Mayo Clinic since 1995 with special interests in breast diseases and women's health.

She is a consultant in the Department of Internal Medicine, Division of General Internal Medicine, and the Breast Diagnostic Clinic. She is an assistant professor of medicine at Mayo Clinic College of Medicine in Rochester, Minn. (more...)