Staff

Gastroenterologist in Tucson, AZ

Our staff is proud to serve the patient community and their families. We provide state-of-the-art evaluation and treatment services, and delivering quality patient care is the center of everything we do.

We a provide a convienent and safe enviroment to complete your gastrointestinal procedures in an outpatient setting. We are fully capable of providing sedation for your added comfort. Our sedation is provided for most procdeures, it is administered by our highly trained physicians, with the most current technology and medications available for safe and effective sedation.


Sam E. Moussa, MD, FACG, FASGE, Associate Clinical Professor of Medicine, University of Arizona, College of Medicine

dr moussa

Voted Best GI Doctors by Tucson Lifestyle Magazine

EDUCATION

  • 1988-1990 Fellowship in Gastroenterology
    University of Arkansas for Medical Sciences
    Little Rock, Arkansas
  • 1987-1988 Fellowship in Hepatology
    Yale University/VAMC
    New Haven, Connecticut
  • 1984-1987 Internal Medicine Residency
    Georgetown University/VAMC
    Washington, DC
  • 1983-1984 Elective in GI, ID, ER, and General Medicine
    Georgetown University/VAMC
    Washington, DC

CREDENTIALS

Board Certifications:

  • American Board of Internal Medicine 1987
  • American Board of Internal Medicine 1989
    (Gastroenterology)

Douglas S. Peterson, MD

Douglas S. Peterson, MD

Voted Best GI Doctors by Tucson Lifestyle Magazine
Education:

  • Phillips Exeter Academy, Exeter, New Hampshire 1979-1980
    Diploma
  • Duke University, Durham, North Carolina 1980-1984
    Bachelors in Science – Zoology
  • University of Wisconsin Medical School 1985-1989
  • University of Arizona-Internship Internal Medicine
    1989-1990
  • University of Arizona-Residency Internal Medicine 1990-1992
  • University of Arizona 1992-1993
    Internal Medicine-CHIEF RESIDENT
  • University of Arizona-Fellowship in Gastroenterology 1993-1995

CREDENTIALS
Board Certifications:

  • American Board of Gastroenterology 2005

Howard Hack, MD

Douglas S. Peterson, MD

EDUCATION:

  • 1980 - 1984 University of Pennsylvania; Philadelphia, Pennsylvania B.A., Economics, Magna Cum Laude
  • 1984 - 1988 M.D., Washington University School of Medicine, St. Louis, Missouri
  • 1991 - 1994 Gastroenterology Fellowship Stanford University School of Medicine; Stanford, California
  • 1989 - 1991 Barnes Hospital; St. Louis, Missouri Medicine Residency
  • 1988 - 1989 The Cleveland Clinic Foundation; Cleveland, Ohio Internship

CREDENTIALS
Board Certifications:

  • American Board of Internal Medicine
  • American Board of Gastroenterology

Steve Goldschmid

Douglas S. Peterson, MD

Dr. Steve Goldschmid is the former Dean of the Medical School at the University of Arizona. He served as the chairman of medicine and chief of gastroenterology at the same university and became a Professor of Medicine. He received his medical degree from Wayne State University School of Medicine.  He brings to the practice more than 30 years of medical experience.

EDUCATION:

  • 1972 – 1976 University of Michigan Ann Arbor, MI (BS in Microbiology)
  • 1976 – 1980 Wayne State University Detroit, MI (MD)
  • 1980 – 1983 Internal Medicine Residency University of South Florida College of Medicine
  • 1983 Rotating Chief Resident, Internal Medicine University of South Florida College of Medicine
  • 1983 – 1985 Gastroenterology Residency University of South Florida College of Medicine

CREDENTIALS
Board Certifications:

  • 2005 – 2006 Medical Executive Committee, University of Arizona Department of Medicine
  • 2015 – 2018 Leadership Committee, University of Arizona Department of Medicine