Our Providers

Alvina Gavrila, MD

Kirkland

Specialties: Gastroenterology
Board Certification: American Board of Internal Medicine—Internal Medicine; American Board of Internal Medicine—Gastroenterology
Medical School: University of Bucharest—School of Medicine, Romania
Residency: Lenox Hill Hospital, New York, NY; Louisiana State University Medical Center, Shreveport, LA
Fellowships: University of Washington Medical Center, Seattle, WA; Louisiana State University Medical Center, Shreveport, LA
Professional Interests: Inflammatory Bowel Disease, colitis, constipation, diarrhea, upper endoscopy and colonoscopy, hepatitis/liver disease, peptic ulcer disease, colon cancer screening, swallowing problems, gastro esophageal reflux
Personal Interests: Skiing, knitting, cooking

Gregory Bernstein, MD

Seattle – Fremont
Seattle – Northgate

Specialties: Gastroenterology and Hepatology
Board Certification: American Board of Internal Medicine – Internal Medicine; American Board of Internal Medicine – Gastroenterology
Medical School: Chicago Medical School, Chicago, IL
Residency: University of Pennsylvania, Philadelphia, PA
Fellowship: Temple University, Philadelphia, PA
Professional Interests: Management of obesity, obesity-related gastrointestinal complications including reflux disease, fatty liver, and non-surgical procedures to treat hemorrhoids
Personal Interests: Spending time with family and friends, cooking, traveling and hiking

Praveen Guturu, MD, FACG

Seattle – Fremont
Seattle – Northgate

Board Certification: Gastroenterology and Internal Medicine
Medical School: Andhra Medical College, India
Internship: University of Texas, Galveston, Texas
Residency: University of Texas, Galveston, Texas
Fellowship: University of Texas, Galveston, Texas
Affiliations & Awards: Texas Association of Internal Medicine award 2008, Train the Trainers ACG 2017, ASGE Crystal Award at DDW meeting 2018, Two presidential posters ACG annual meeting 2018, ACG SCOPYaward2018. Fellow-American college of Gastroenterology

Wataru Tamura, MD

Seattle – Fremont
Seattle – Northgate

Specialties: Gastroenterology
Board Certification: American Board of Internal Medicine—Gastroenterology
Medical School: D. Keio Gijuku University School of Medicine, Shinjiku-ku, Tokyo, Japan
Residency: Beth Israel Medical Center, Internal Medicine, New York, NY
Fellowship: Jefferson Medical College, Gastroenterology & Hepatology, Philadelphia, PA
Experience: Gastroenterologist – Foothills Gastroenterology, PLLC, Oro Valley, AZ and Assistant Professor of Medicine – University of Colorado at Denver
Professional Memberships: American Gastroenterological Association, American College of Gastroenterology and the American Society of Gastrointestinal Endoscopy
Languages: Fluent in English and Japanese.

Jeffrey Luk, MD

Seattle – Kirkland

Languages Spoken: English, Cantonese
Specialties: Gastroenterology
Medical School: Mercer University School of Medicine
Residency: Yale New Haven Hospital
Fellowship: Yale New Haven Hospital, Gastroenterology

Nathalie Cohenca, PA

Seattle – Kirkland

Languages Spoken: English, Hebrew, Spanish
Medical School: George Washington University

Bo H. Lim, PA

Seattle – Kirkland

Languages Spoken: English, Korean
Specialties: Gastroenterology
Medical School: South University – Savannah Campus

Sean H. Tran, PA

Seattle – Kirkland

Languages Spoken: English
Medical School: West Coast University