(440) 808-1212

Our Care Team

Our friendly and professional staff welcomes you to North Shore Gastroenterology

Mousab Tabbaa, M.D.

President, North Shore Gastroenterology
Assistant Clinical Professor of Medicine, Ohio University
Assistant Clinical Professor of Medicine, CWRU (1991-2002)
Professor at Ohio University

Diplomate of the American Board of Internal Medicine
Gastroenterology
Internal Medicine

Education
Doctor of Medicine: University of Damascus, Syria

Post-graduate Training
Internal Medicine: Cleveland Metropolitan General Hospital
Gastroenterology Fellowship: Cleveland Metropolitan General Hospital

Special Interests
Management of hepatobiliary disease and hepatic disorders
Pancreatobiliary Endoscopy
Inflammatory Bowel Disease
Colorectal Cancer Screening and Detection
Barrett’s Esophagus

Peter Greenwalt, M.D.

Dr. Greenwalt and Dr. Tabbaa founded the practice in 1989. Dr. Greenwalt retired from the practice in 2016.

Diplomate of the American Board of Internal Medicine
Gastroenterology
Internal Medicine

Education
Undergraduate: Yale University
Doctor of Medicine: Case Western Reserve University

Post-graduate Training
Internal Medicine: University of Washington Affiliated Hospitals
Gastroenterology Fellowship: Cleveland Clinic Foundation

Special Interests
Practice of gastroenterology with clinical teaching
Colorectal Cancer Screening and Early Detection
Colon Polyp Removal
Upper Endoscopy

Owen Tully, M.D.

Diplomate of the American Board of Internal Medicine
Gastroenterology
Internal Medicine

Education
Doctor of Medicine: Thomas Jefferson University

Post-Graduate Training
Internal Medicine: Lakenau Medical Center
Gastroenterology Fellowship: Lakenau Medical Center

Special Interests
Inflammatory Bowel Disease
Celiac Disease
Hepatitis-C
GERD
Colon Cancer Screening
Polypectomy
Barrett’s Esophagus

Michael Springer, M.D.

Diplomate of the American Board of Internal Medicine
Gastroenterology
Internal Medicine

Education
Doctor of Medicine: University of Iowa School of Medicine

Post-graduate Training
Internal Medicine: Cleveland Metropolitan General Hospital
Gastroenterology Fellowship: Cleveland Metropolitan General Hospital

Robert F. Straub , M.D.

Diplomate of the American Board of Internal Medicine
Gastroenterology
Internal Medicine

Education
Doctor of Medicine: Medical College of Ohio

Post-graduate Training
Internal Medicine: Emory University School of Medicine
Gastroenterology Fellowship: Emory University Hospital

Special Interests
Colonoscopy, polyp removal
Colorectal Cancer Screening and Detection
Upper Endoscopy
Inflammatory Bowel Disease
Barrett’s Esophagus

James Harris, M.D., F.A.C.G.

Diplomate of the American Board of Internal Medicine
Gastroenterology
Internal Medicine

Education
Doctor of Medicine: Ohio State University

Post-graduate Training
Internal Medicine: Cleveland Clinic Foundation
Gastroenterology Fellowship: Cleveland Clinic Foundation

Maher Azzouz, M.D.

Diplomate of the American Board of Internal Medicine
Internal Medicine
Gastroenterology
Transplant Hepotology

Education
Doctor of Medicine: University of Aleppo

Post-Graduate Training
Internal Medicine: Western Pennsylvania Hospital
Gastroenterology Fellowship: Western Pennsylvania Hospital
Transplant Hepotology: University of Mississippi Medical Center

Iqbal, Ahmed, M.D., F.A.C.G.

Diplomate of the American Board of Internal Medicine
Gastroenterology
Internal Medicine

Education
Doctor of Medicine: Government Medical College, Patiala, India

Post-graduate Training
Internal Medicine: Government Medical College, Patiala, India
Residency, Internal Medicine: Memorial University, St. John, Newfoundland, Canada
Gastroenterology Fellowship: University of Ottawa, Ontario, Canada

Jason Vollweiler, M.D.

Diplomate of the American Board of Internal Medicine
Gastroenterology
Internal Medicine

Education
Doctor of Medicine: Northwestern University Medical School

Post Graduate Training
Internal Medicine: Duke University Medical Center
Gastroenterology Fellowship: Cleveland Clinic Foundation
Advanced Endoscopy Fellowship: Cleveland Clinic Foundation

Professional Memberships
American College of Gastroenterology and the American Society of Gastrointestinal Endoscopy

Special Interests
ERCP

Martin Beerman, M.D.

Diplomate of the American Board of Internal Medicine
Internal Medicine

Education
Doctor of Medicine: Ohio State University College of Medicine

Post-Graduate Training
Internal Medicine: The Ohio State University Hospital
Gastroenterology Fellowship: The Ohio State University Hospital

Special Interests
Endoscopy
Biliary Disease

Kimberly Harris, M.D.

Diplomate of the American Board of Internal Medicine
Diplomate of the American Board of Pediatrics

Education
Doctor of Medicine: The Ohio State University

Post-Graduate Training
Internal Medicine/Pediatrics: University of Pittsburgh Medical Center
Gastroenterology Fellowship: Vanderbilt University Medical Center

Special Interests
Irritable Bowel Syndrome
Inflammatory Bowel Disease
Colorectal Cancer  Screening and Detection
Management of Hepatitis C and chronic liver disease

Mohamed Naem, M.D

Diplomate of the American Board of Internal Medicine

Education
Doctor of Medicine: Wayne State University School of Medicine

Post-Graduate Training
Internal Medicine Residency: University Hospital Case Western Reserve Medical Center
Gastroenterology Fellowship: The Ohio State University Medical Center

Special  Interests:
General Gastroenterology, Inflammatory Bowel Disease
Celiac Disease, Irritable Bowel Syndrome, GERD
Colon Cancer Screening and Detection
Management of Chronic Liver Disease

Rinjal Brahmbhatt, M.D

Diplomate of the American Board of Internal Medicine
Internal Medicine
Gastroenterology

Education
Doctor of Medicine: University of Wisconsin

Post-Graduate Training
Internal Medicine: University of Wisconsin Hospitals and Clinic
Gastroenterology Fellowship: Nebraska Medical Center

Special Interests
Management of hepatobiliary disease and hepatic disorders
Inflammatory Bowel Disease
Colorectal Cancer Screening and Detection

 

Gabriella McCarty
RN, MSN, NP-C

Education
Kettering College of Medical Arts 1998, RN, ADN
Bowling Green State University 2001, BSN
Case Western Reserve University 2004, MSN, NP-C

Special Interests
Hepatitis C,  IBD,
IBS,
Esophageal Disorders

Professional Memberships
American College of Gastroenterology
American Academy of Nurse Practitioners
Ohio Association for Advanced Practice Nurses

Debra Calabrese
M.Ed., PA-C

Education
Cleveland State University, BA, M.Ed.
Cuyahoga Community College, PA
National Commission on Certification of Physician Assistants, PA·C

Professional Memberships
Ohio Association of Physicians Assistants

Special Interests
Irritable Bowel Syndrome
Nutrition

Kate Newman
RN, MSN, ANP-BC

Education
Ursuline College 2002, BSN
Ursuline College 2008, MSN, ANP

Professional Memberships
Ohio Association for Advanced Practice Nurses

Special Interests
Hepatitis C
Irritable Bowel Syndrome
Colon Cancer Screening

Nancy Grech
RN, MSN, NP-C

Education
Case Western Reserve University 2008, BSN
Case Western Reserve University 2013, MSN, Adult/Gero Nurse Practitioner

Professional Memberships
Ohio Association for Advanced Practice Nurses

Special Interests
Management of the practice’s patients in the inpatient setting while acutely ill.

Bianca Macanga  RN, MSN, NP-C

Education
University of Akron 2008, BSN
Kent State University 2014, MSN

Professional Memberships
American Association of Nurse Practitioners
Wound, Ostomy, Continence Nurses Society

Special Interests
Management of patients in the acute care setting
Crohn’s Disease
Ulcerative Colitis

Kristen Patterson
RN, MSN, NP-C

Education
Lorain County Community College 1996, RN, ADN
Bowling Green State University 2009, BSN
Kent State University 2014, MSN

Professional Memberships

American Academy of Nurse Practitioners

Special Interests

GERD
Barrett’s Esophagus
IBS
Liver Disease
Celiac Disease
Colon Cancer Screening

 

 

Renee Schnupp
M. Ed., PA-C

Education
Cleveland State University 2012, Bachelors Health Science
Baldwin Wallace University 2015, Masters Medical Science
National Commission on Certification of Physician Assistants, PA·C 2015

Professional Memberships
American Academy of Physician Assistants
Ohio Physician Assistant Association

Special Interests
Management of patients in the acute care setting
Colon Cancer Screening
Liver Disease
IBS
IBD

Marla Gerrek
RN, MSN, NP-C 

 Education
Florida Atlantic University, 1995 BSN
Case Western Reserve University, 1999 MSN, NP-C

Professional Memberships
American Academy of Nurse Practitioners
Ohio Association for Advanced Practice Nurses
National Association of Pediatric Nurse Practitioners

Special Interests
Chronic Liver Disease
Chrohn’s Disease

Leslie Shaw
PA-C, RD, LD, MSHS, CNSC

Education
University of Akron 2007, Bachelor of Science, Dietetics
Tri-C/Cleveland State University 2016, Physician Assistant, Masters of Science in Health Science

Professional Memberships
American Academy of P.A.
Ohio Physician Assistant Association
Academy of Nutrition and Dietetics
American Society of Parenteral and Enteral Nutrition

Special Interests
Nutrition
Nutrition Support
Management of patients in the acute care setting
Colon Cancer Screening
Liver Disease
IBS
IBD

Lindsay Towry RN, MSN, NP-C

Education
University of Tennessee 2008, Bachelors of Arts
Belmont University 2010, BSN
Belmont University 2014, MSN, Family Nurse Practitioner

Professional Memberships
American Academy of Nurse Practitioners

Special Interests
Celiac Disease
IBS
Liver Disease
Colon Cancer Screening