Physicians & Staff

Noemi Baffy, MD, MPH

Dr. Baffy is board-certified in internal medicine and gastroenterology. She graduated magna cum laude from the University of Massachusetts-Amherst and obtained a master’s degree in public health from Drexel University. She then studied medicine in her native country, Hungary, at Semmelweis University. Following medical school, Dr. Baffy returned to Philadelphia for her internal medicine residency at Drexel University College of Medicine. She joins us directly from her gastroenterology and hepatology fellowship training at the Mayo Clinic in Scottsdale, Arizona. During her training, Dr. Baffy received the prestigious Hassan Loutfi, MD, Distinguished Fellow Award. Her clinical interests include general gastroenterology with a specific focus on women’s health. She is joined in Maine by her husband and two children, with whom she enjoys spending time outdoors.

 

 

Gennadiy Bakis, MD

Dr. Bakis is board-certified in gastroenterology. After graduating cum laude from Brooklyn College, he received his medical degree from Albany Medical College. Dr. Bakis completed his internship and residency at the UMass Memorial Medical Center and worked there as a hospitalist before his general gastroenterology fellowship at the State University of New York at Buffalo. He then completed an Advanced Interventional Endoscopy Fellowship at Maine Medical Center. Before joining Portland Gastroenterology Center, Dr. Bakis was an associate professor of medicine at Oregon Health & Sciences University, where he trained gastroenterology fellows and co-authored multiple publications. Dr. Bakis has clinical interests in therapeutic endoscopy including ERCP and EUS, pancreatic and biliary diseases, endoscopic mucosal resection of early malignancies or pre-malignant lesions throughout the GI tract, and Barrett’s esophagus.

 

 

Erkkinen2011John Erkkinen, MD

Dr. Erkkinen is board-certified in internal medicine and gastroenterology. He graduated cum laude from Bowdoin College and also received a bachelor of medical science degree from Dartmouth Medical School. Dr. Erkkinen received his medical degree from Harvard Medical School and following his medical internship served two years with the United States Army as a captain in the Medical Corps. He completed his residency and a fellowship in gastroenterology at Dartmouth Affiliated Hospitals. Dr. Erkkinen is the author or co-author of several publications. He is a clinical instructor at Tufts University School of Medicine and a member of the Maine Medical Center medical staff.

 

 

 

Joshua Goldman, MD

Dr. Goldman is board-certified in gastroenterology. He graduated cum laude from the University of Pennsylvania. He received his medical degree at the University of Connecticut School of Medicine, and then returned to Philadelphia for his residency in internal medicine at Thomas Jefferson University Hospital. Dr. Goldman completed his gastroenterology fellowship at Boston Medical Center, where he was recognized as the BMC Teaching Fellow of the Year. Prior to joining Portland Gastroenterology Center, Dr. Goldman spent nine years as a partner, and then as president, of Gastroenterology Affiliates of Southeastern Massachusetts. His practice areas of interest include colon cancer prevention, inflammatory bowel disease, irritable bowel syndrome, and management of upper GI disorders including gastroesophageal reflux disease.  In his free time, Dr. Goldman enjoys distance running, mountaineering, and traveling to remote areas of the world including Ushuaia, Svalbard and New Zealand.

 

 

Howell2011Douglas Howell, MD

Dr. Howell is board-certified in internal medicine and gastroenterology. He graduated from Rutgers University and Temple University School of Medicine, where he was a member of the Alpha Omega Alpha Medical Honor Society. Dr. Howell served his residency at Dartmouth-Hitchcock Medical Center, where he also completed a fellowship in gastroenterology. Dr. Howell is a clinical associate professor at Tufts University School of Medicine and a member of the Maine Medical Center medical staff. He serves as Maine Medical Center’s director of both its Advanced Interventional Endoscopy Fellowship and Pancreaticobiliary Center. Dr. Howell’s numerous professional positions have included past acting chief of the Division of Gastroenterology, chief of Interventional Endoscopy at Maine Medical Center, and president of the New England Endoscopy Society. He is currently an editorial review board member of Gastrointestinal Endoscopy and sub-editor of UpToDate. Dr. Howell has served as principal investigator of numerous scientific studies and currently heads an international clinical research group studying new techniques and equipment for endoscopic therapy. He has served visiting professorships to faculties in the United States and worldwide, including Europe, Australia, Mexico, Canada, India, and other Asian countries. He has received multiple recognitions, including the Davis Foundation Grant Award, Maine Medical Center Master Teacher Award, American Society of Gastrointestinal Endoscopy Scholarship Award, New England Endoscopy Society Original Research Award, and Maine Medical Association’s Young Doctor of the Year Award. In 2002, Dr. Howell received the ASGE’s Master Endoscopist Award at the Combined Society Gastroenterology meeting in San Francisco, California, an award given to one gastroenterologist annually among nearly 10,000 members worldwide, and in 2012, the ASGE’s Distinguished Teaching Award. His medical publications include many peer-reviewed original articles, book chapters and online contributions.

 

Kate Kennedy, MDKennedy resized

Dr. Kennedy is board-certified in internal medicine and gastroenterology. She graduated from Williams College and Tufts University School of Medicine, both in Massachusetts. Dr. Kennedy completed her internal medicine internship and residency at the University of Colorado Hospital. She spent one year after residency working as a clinical hospitalist in Littleton, Colorado. She then returned to training and completed a fellowship in gastroenterology and hepatology at the University of Rochester Medical Center. She practices general gastroenterology and hepatology with special clinical interests in inflammatory bowel disease and quality measures in colonoscopy. Dr. Kennedy is a clinical assistant professor at Tufts University School of Medicine and a member of the Maine Medical Center medical staff. In Dr. Kennedy’s free time, she enjoys getting outside as much as she can to participate in a variety of activities, including hiking and skiing.

 

 

Alan Kilby, MDKilby2011

Dr. Kilby is board-certified in internal medicine and gastroenterology, and has a special interest in the treatment of liver disease (hepatology). He received his undergraduate degree from Cornell University and his medical degree from Cornell University Medical College, where he was a member of the Alpha Omega Alpha Medical Honor Society. He completed his residency in internal medicine at the University of Michigan and his fellowship in gastroenterology at the University of Vermont. In addition to his clinical practice in gastrointestinal and liver diseases, Dr. Kilby is medical director for hepatitis at Maine Medical Center’s Virology Treatment Center. He is a clinical assistant professor at Tufts University School of Medicine and a member of the Maine Medical Center medical staff.

 

 

Mayes2011Thalia Mayes, MD

Dr. Mayes is board-certified in internal medicine and gastroenterology. She is the first female gastroenterologist to serve the Portland area. Originally from Central America, her family settled in Maine in her youth, and she graduated from Yarmouth High School. She was a Rochester Early Medical Scholar (REMS), a highly selective eight-year BA/BS-MD program at the University of Rochester in New York. After completing a degree in mathematics, she received her medical degree from the University of Rochester School of Medicine & Dentistry. She completed her residency, and a fellowship in gastroenterology and hepatology, at the University of Rochester Medical Center. During her training, Dr. Mayes received the Marvin J. Hoffman Award in Clinical Research and the Raphael Dolin Resident Research Award. Dr. Mayes’s areas of special interest include inflammatory bowel disease, celiac disease and autoimmune liver disease. She is a clinical assistant professor at Tufts University School of Medicine and a member of the Maine Medical Center medical staff.

 

G. Alex Millspaugh, MDMillspaugh2011

Dr. Millspaugh is board-certified in gastroenterology. He graduated from Princeton University and the Columbia University College of Physicians and Surgeons. Dr. Millspaugh completed his residency at Columbia Presbyterian Medical Center and served a fellowship in gastroenterology at Columbia University. Dr. Millspaugh was the recipient of a Rosenbluth Foundation Grant. He is a clinical assistant professor at Tufts University School of Medicine and a member of the Maine Medical Center medical staff.

 

 

Morse2011 James Morse, MD

Dr. Morse is board-certified in internal medicine and gastroenterology. He graduated cum laude from Harvard University and subsequently served a Shaw Fellowship at Harvard. He graduated from Tufts University School of Medicine and served a Kellogg Fellowship at the Harvard School of Public Health. Dr. Morse completed his residency at the University of Virginia Hospital and a fellowship in gastroenterology and hepatology at the University of Michigan Medical Center. Before joining Portland Gastroenterology Center, he was a member of the academic faculty of the University of Virginia Health Sciences Center, where he developed special expertise in nutritional deficiencies as well as the delivery of enteral and parenteral nutrition. Dr. Morse is the author of numerous publications. His extensive scientific activities include Crohn’s disease studies, colorectal cancer investigation and gastroenterological drug studies. Dr. Morse’s areas of special interest include celiac disease, GI bleeding/obscure anemia, hereditary colon polyp/cancer syndromes, TPN and enteral nutrition/feeding tube placement. He is director of the Maine Medical Center Adult Inpatient Nutrition Support Team. Dr. Morse is a clinical associate professor at Tufts University School of Medicine and a member of the Maine Medical Center medical staff.

 

Benjamin Potter, MDPotter2011

Dr. Potter is board-certified in internal medicine and gastroenterology. He graduated from Dartmouth College and Dartmouth Medical School. He was the recipient of the Lenna W. Perry Foundation Scholarship, a four-year, full-tuition scholarship awarded annually to a New Hampshire medical student. He completed his internal medicine residency at Maine Medical Center and his gastroenterology fellowship at the Lahey Clinic. Before joining Portland Gastroenterology Center, Dr. Potter practiced at Gastroenterology Associates of Eastern Maine. Dr. Potter’s areas of special interest include colon cancer prevention, Barrett’s esophagus/GERD, celiac disease, irritable bowel syndrome and inflammatory bowel disease. He is a clinical assistant professor at Tufts University School of Medicine and a member of the Maine Medical Center medical staff.

 

RolshudDaniil Rolshud, MD

Dr. Rolshud is board-certified in internal medicine and gastroenterology. After graduating summa cum laude from Hunter College, he received his medical degree from Mount Sinai School of Medicine and served his residency at Boston Medical Center. Dr. Rolshud completed a Gastroenterology Fellowship Program at Johns Hopkins University and an Advanced Endoscopy Fellowship Program at Columbia University. His areas of special interest are pancreaticobiliary medicine and the application of advanced diagnostic and therapeutic endoscopy, including ERCP (a procedure for the examination or treatment of the bile ducts and pancreatic ducts that combines the use of X-rays and an endoscope), endoscopic ultrasound, deep enteroscopy, endoscopic mucosal resection and radiofrequency ablation. Dr. Rolshud is a clinical assistant professor at Tufts University School of Medicine and a member of the Maine Medical Center medical staff.

 

Andreas Stefan, MDStefan2011

Dr. Stefan is board-certified in internal medicine and gastroenterology. He graduated summa cum laude from St. Olaf College and was a member of the Phi Beta Kappa Honor Society. He received his medical degree from the University of Minnesota Medical School, where he was awarded a four-year scholarship. In medical school, Dr. Stefan received the Richard C. Horns Award for clinical excellence and was elected to the Alpha Omega Alpha Medical Honor Society. He completed his residency at Harvard University’s Brigham and Women’s Hospital and served a fellowship in gastroenterology at Boston University Medical Center. Dr. Stefan completed a program in clinical effectiveness at Harvard School of Public Health and went on to finish an additional year of fellowship training in therapeutic endoscopy at the University of Toronto. Prior to joining Portland Gastroenterology Center, he was in practice in Portland, Oregon, in the Division of Gastroenterology at The Oregon Clinic. Dr. Stefan is an assistant clinical professor at Tufts University School of Medicine and is the author or co-author of numerous publications. His areas of special interest include pancreaticobiliary disease and advanced endoscopy/ERCP. At Maine Medical Center, Dr. Stefan is chief of the Division of Gastroenterology as well as associate director of the Pancreaticobiliary Center. He is a member of the Maine Medical Center medical staff and was recently given an outstanding teaching award by the Maine Medical Center internal medicine residents. In Dr. Stefan’s free time, he enjoys cycling and cross-country skiing.

 

Meet Our Physician Assistant and Family Nurse Practitioners

Screen Shot 2013-04-29 at 12.30.23 PMCaitlin Phelps, PA-C

Caitlin Phelps is a NCCPA-certified physician assistant. She has been practicing in gastroenterology since 2008. Caitlin started in healthcare as an emergency medical technician in 2000 in New Hampshire. She graduated from McGill University with a bachelor of science degree in physiology before earning a master of science degree from Northeastern University in physician assistant studies. Caitlin has lectured in gastroenterology at the Northeastern Physician Assistant Program and has a strong interest in healthcare education. She enjoys running, knitting and photography.

 

Melanie Connors, MSN, FNP-BCCarroll

Melanie Connors is a board-certified family nurse practitioner. Committed to patient care, Melanie has been a practicing nurse practitioner in family practice in the Portland, Maine, area since 2007. After eight years in the veterinary biotech industry, working in hematology research and development/technical support, she returned to graduate school and earned her master of science degree in nursing from the University of Southern Maine. Melanie, a member of the American Academy of Nurse Practitioners and the Maine Nurse Practitioner Association, received her undergraduate degree from the University of Maine prior to receiving her advanced degree in nursing. She enjoys gardening, photography and traveling.

 

Ekaterina Funk, MSN, FNP

Ekaterina Funk is a family nurse practitioner with four years of experience at Central Maine Medical Center. Ekaterina was a lead provider for the Behavioral Health Home Model, a collaboration with Tri-County Mental Health Services, and for the Medical Health Home Model, an initiative to bring the patient-centered medical home model to primary care practice in Maine. Before becoming a nurse practitioner, Ekaterina was a registered nurse at the Orthopedic Institute of Central Maine, CMMC, and The Barron Center in Portland. Ekaterina received her bachelor of science in nursing and master of science from the University of Southern Maine. In her free time she enjoys reading, and spending time outside exploring Maine with her family. Ekaterina is fluent in Russian.

 

Tara Hieger, MSN, FNP-C

Tara Hieger is a board-certified family nurse practitioner. She graduated cum laude from the University of Pennsylvania, where she also earned her master of science in nursing. Tara was elected to the Sigma Theta Tau International Honor Society of Nursing during her undergraduate studies. Originally from Kennebunk, Tara is happy to be back in Maine after studying out of state. Tara brings more than 18 years of experience as a nurse practitioner; most of those years have been spent practicing gastroenterology. Her medical interests include inflammatory bowel disease and liver disease. Tara has received special training in performing and interpreting video capsule endoscopy. She is the first advanced practice provider to be appointed as a board member to the Maine Gastroenterology Society. When not working, she enjoys travel, cooking, hiking, and spending time with her family.

 

Karen Stoughton, MSN, FNP-Coie_26222141YFZJ2F5H

Karen Stoughton is a board-certified family nurse practitioner. She graduated from the University of Connecticut with a bachelor of science degree in nursing. Prior to attending graduate school, Karen worked for over six years in gastroenterology as an endoscopy nurse and in medical-surgical hospital nursing. In May of 2014, she completed a master of science in nursing from the University of Southern Maine. Karen is a Sigma Theta Tau International Honor Society of Nursing inductee, and a member of the American Academy of Nurse Practitioners and the Maine Nurse Practitioner Association. For relaxation Karen enjoys time with her family, swimming, and gardening.

 

Karrie Sweet, MSN, FNP-C, RD, CNSC

Karrie Sweet is a board-certified family nurse practitioner and registered dietitian. She received her master of science degree in nursing at the University of Southern Maine and a master of science in human nutrition from Illinois State University. Karrie started her career in healthcare as a registered dietitian in 2002. She worked in both inpatient and outpatient settings, focusing on medical nutrition disease management of diabetes and gastrointestinal diseases. Her clinical interests include irritable bowel syndrome, inflammatory bowel disease, and using motivational interviewing to empower patients to optimally manage their health conditions. Karrie is a member of the American Academy of Nurse Practitioners and Sigma Theta Tau International Honor Society of Nursing. She is a certified nutrition support clinician (CNSC), specially trained in managing patients on parenteral and enteral nutrition therapies. In her spare time she enjoys training in kickboxing, reading fiction novels, dancing, and spending time with her family.