Elliot Health System is a non-profit organization serving your healthcare needs since 1890.

Gastroenterology

Elliot at River's Edge
185 Queen City Avenue
Manchester, NH 03101

Phone: (603) 314-6900
Fax: (603) 314-6909

Hours: Monday through Friday: 8:00 a.m. to 5:00 p.m.


Meet Our Providers


Vincent Aguirre, MD

Education:
Harvard Medical School MD 2002
Boston, MA

Residency:
Brigham and Women's Hospital
Boston, MA

Fellowship:
Massachusetts General Hospital
Boston, MA

Board Certification:
American Board of Internal Medicine, Gastroenterology, 2008
American Board of Internal Medicine, Internal Medicine, 2007


Dmitriy Kedrin MD, PhD

Education:
Albert Einstein College of Medicine
Yeshiva University
Bronx NY

Residency:
Beth Israel Deaconess Medical Center/Harvard Medical School
Boston, MA

Fellowship:
Massachusetts General Hospital/Harvard Medical School
Boston, MA

Board Certification:
American Board of Internal Medicine, 2014
American Board of Gastroenterology, 2017


Myles Keroack, MD

Dr. Keroack has dedicated his career to patient care and medical education. He is proud to join the Elliot and is looking forward to caring for the community and partnering with his patients for their healthcare needs.


Specialty:
Gastroenterology

Education:
Tufts University School of Medicine, 1988
Boston, MA

Internship:
University of Massachusetts Medical Center
Worcester, MA

Fellowship:
Lahey Clinic
Burlington, MA

Board Certification:
American Board of Internal Medicine, Gastroenterology, 1997
American Board of Internal Medicine, Internal Medicine, 1991

Experience:
Gastroenterologist
Marshfield Clinic Eau Claire Center
Eau Claire, WI

Gastroenterologist
Massachusetts General Hospital
Boston, MA
Two Time Teacher of The Year Award

Instructor in Medicine
Harvard Medical School
Boston, MA

Medical Director
Lynnfield Medical Associates
Peabody, MA

Gastroenterologist
Lynnfield Medical Associates
Peabody, MA


Stephen Wiener, MD

Experience:
Gastroenterologist, Pentucket Medical (full-time private practice)
· Early adopter of all Capsule Endoscopy technologies
· Invited to lecture on Capsule Endoscopy - University of Hong Kong, China
· NECN Interview & live patient demonstration of Esophageal Capsule Endoscopy
· Taught Capsule Endoscopy courses for Gastroenterologists
· Smartpill Capsule Motility clinical research publications

Fellowship:
Clinical Fellowship 1999-2003 Massachusetts General Hospital
(Gastroenterology) Boston, MA

Fellowship 2000-2003 Department of Surgical Research
(Angiogenesis) Children’s Hospital, Boston, MA

Staff Fellowship 1995-99 National Institutes of Health
(Gene Therapy) Bethesda, MD

Medical Staff Fellow 1993-95 RNA and Protein Biosynthesis Section,
(Molecular Hematology) Molecular Hematology Branch
National Heart, Lung, and Blood Institute
Bethesda, MD

Commissioned Officer 1993-99 United States Public Health Service
Bethesda, MD

Clinical Associate 1992-93 National Heart, Lung, and Blood Institute
(Internal Medicine) Bethesda, MD

Residency:
Strong Memorial Hospital
(Internal Medicine) University of Rochester
Rochester, NY

Education:
M.D. 1990 Tufts University School of Medicine Boston, MA
B.A. 1983 Colgate University Hamilton, NY

Board Certification:
1994 Diplomate, American Board of Internal Medicine
Internal Medicine Recertified through 12/31/2023

2003 Diplomate, American Board of Internal Medicine
Gastroenterology Recertified through 12/31/2023


Joyce Agarwal, APRN

Joyce Agarwal, APRN has been board certified by the American Nurses Credentialing Center as a Nurse Practitioner since 2012 when she earned a Master of Science in Nursing at Rivier College in Nashua, NH. Prior to that, she worked for many years in both clinical and management positions as a Registered Nurse. Joyce joined Elliot Health System in 2013 as family nurse practitioner and transferred to the Elliot Gastroenterology team in 2018.


Sharon Barker, APRN

Sharon Barker, APRN has been Board Certified by the American Nurses Credentialing Center since 1998 as a Family Nurse Practitioner. She received her Master of Science Degree as a Family Nurse Practitioner from Rivier College, Nashua, NH. Sharon began her career as a Registered Nurse with an Associate Degree in Nursing in 1982 from Northern Essex Community College, Haverhill, MA and completed her Bachelor of Science Degree in Nursing at the University of New Hampshire in 1995.

Prior to completing her education as a Family Nurse Practitioner, she had twelve years of experience in the ICU at Holy Family Hospital in Methuen, MA. Sharon has enjoyed being a preceptor for many Nurse Practitioner students from various local colleges over the years. Her past employment as a Nurse Practitioner includes: Urgent Care, Family Practice, Internal Medicine as well as six years of Gastroenterology experience with a southern NH private practice. It was her love for this specialty that brought her to Elliot Gastroenterology in February of 2012.


Lauren Gelinas, PA-C

Lauren Gelinas, PA-C has been board certified by the National Commission on Certification of Physician Assistants since 2013. She earned a Bachelor of Arts degree in Biology with honors at McDaniel College in Westminster, MD and is a member Phi Beta Kappa. She completed her Physician Assistant education at the University of New England in Portland, ME in 2013. Her prior experience as a physician assistant includes the Digestive Health service at Maine Medical Center and the hospitalist program at South Maine Health Care. Lauren is a native of the greater Manchester area and has returned to her home state, joining the Elliot Gastroenterology team in 2015.



For all appointments please call 603-314-6900