DOVER-FOXCROFT, Maine — Two veteran members of the Emergency Department staff at Mayo Regional Hospital, William Sheppard and Melanie Dumont, have passed the first-ever certification examination in emergency medicine offered by the National Commission on Certification of Physician Assistants.

Sheppard has been a full-time member of Mayo’s Emergency Department team since 1999, and Dumont has worked at Mayo since 2004.

“This is a big accomplishment for Bill and Mel, and is the equivalent of board certification for PAs in the Emergency Medicine discipline,” said Dr. David McDermott, Mayo’s medical director of emergency services. “Earning this certification demonstrates that both have outstanding skills, advanced knowledge and dedication to emergency medicine.”

Mayo is one of a half-dozen Critical Access Hospitals in Maine that continues to staff its Emergency Department at times with a sole-provider PA model.

Mayo’s Emergency Department also employs David Flaherty, PA-C, who arrived in 2010, on a full-time basis. Physician Assistants William “Guy” Mahan, Richard Wiemer and John Smith work in the department on a per-diem schedule.

Dumont, who lives in Lincoln, trained in the physician assistant program at the Yale University School of Medicine, and has a Bachelor of Science degree from the University of Vermont. She has worked as a PA since 1988, with experience in primary care, hospital and emergency department settings.

Sheppard, who lives in Dover-Foxcroft, graduated from Drexel University’s Hahnemann College of Medicine PA program in 1992, and has worked in the profession since that time. In 2010, he was named the Rural Physician Assistant of the Year by the Downeast Association of Physician Assistants.