Frederick Gastroenterology Associates

All our professionals at Frederick Gastroenterology Associates maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in gastroenterology.


Nelson Chuang, MD, PhD
Medical Degree: Robert Wood Johnson Medical School
Residency: Montefiore Medical Center
Fellowship: University of Maryland

Shien Arthur Hu, MD
Medical Degree: Peking Union Medical College, Beijing, China
Residency: University of Nevada, Reno
Fellowship: University of Maryland

Thomas A. Huebner, M.D.
Medical Degree: Eastern Virginia Medical School
Pathology Residency: University of Maryland
Pathology Fellowship: Johns Hopkins Hospital

Ali J. Husain, MD
Rhodes Scholar: Oxford University
Medical Degree: Washington University, St. Louis
Residency: Stanford University
Fellowship: University of Iowa Hospital

Natasha Kamal, MD
Medical Degree: University of Maryland
Residency: Icahn School of Medicine Mt. Sinai
Fellowship: National Institutes of Health
IBD Fellowship: University of Maryland 

Andrew D. Mowery, DO
Medical Degree: Philadelphia College of Osteopathic Medicine
Residency: Geisinger Health Systems
Fellowship: Geisinger Health Systems
Interventional Gastroenterology: Virginia Commonwealth University

Eiman Nabi, MD
Medical Degree: Weill Cornell Medical College Doha, Qatar, NYC, New York
Residency: Virginia Commonwealth University Health System
Fellowship: Virginia Commonwealth University Health System

Weiming Yan, MD, PhD
Medical Degree: Ohio State University
Residency: Georgetown University Hospital
Fellowship: West Virginia University

Dawei Yang, MD, PhD
Medical Degree: Case Western Reserve
Residency: Case Western Reserve
Fellowship: Johns Hopkins Hospital

Matthew Yeatman, MD
Medical Degree: University of Maryland
Residency: Johns Hopkins Hospital
Fellowship: Johns Hopkins Hospital

Health Professionals

Carolyn J. Hedin, CRNP-A
Nursing Degree: Loma Linda University
Nurse Practitioner : The George Washington University


Colette L. Benton, CRNP
Nursing Degree:University of Maryland
Nurse Practitioner: University of Maryland


Janet Dakers-Bidle, CRNP
Nursing Degree: University of Maryland
Nurse Practitioner: University of Maryland


Kelly Hausenbauer, PA-C
Undergraduate Degree: Carleton College
Physician's Assistant: The George Washington University


Evelyn Chavez, PA-C
Physician’s Assistant Degree: Arcadia University
B.S. Biological Sciences: University of Maryland

Our Locations