Board certified gastroenterologists make a diagnosis, and treat you sooner in our
new endoscopy center..

Elliot Physicians Network

A Department of Elliot Hospital
185 Queen City Avenue,
Manchester, NH 03101
Phone: 603.314.6900
Fax: 603.314.6909


Office Hours

Monday through Friday: 8:00 a.m. to 5:00 p.m.
Click here to read about Colon Cancer Screenings

Vincent Aguirre, MD


Education: Harvard Medical School MD 2002 Boston, MA

Brigham and Women's Hospital Boston, MA

Massachusetts General Hospital Boston, MA

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

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

University of Massachusetts Medical Center, Worcester, MA

Lahey Clinic, Burlington, MA

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

Marshfield Clinic Eau Claire Center
Eau Claire, WI

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

Lynnfield Medical Associates
Peabody, MA


Stephen Wiener, MD


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

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

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

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


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



Click here for directions.


Electronic Medical Records System

Utilizing our state of the art Electronic Medical Record System, each physician has complete patient data (immunizations, allergies, Lab results, etc.) at their fingertips to enable them to monitor your health needs more closely. If you call after hours, all physicians “on-call” can access this same information, thus providing excellent, all-inclusive care for our patients 24 hours a day, 7 days a week. This versatile Medical Record System also enables our office to electronically transmit prescriptions and refills directly to the pharmacy of your choice.

In addition, our office also has the facilities to take and process X-Rays and to draw most lab work right on site, offering our patients convenient and efficient health care.


Records Release

If you would like  a copy of your medical record, please download the records release form, complete and bring or send to the office.  Click here to download.

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