High-quality care to Tucson for over 45 years

About Us

Arizona Gastroenterology

We are a multi-generational gastroenterology practice providing high-quality, personalized care to the Tucson community for over 45 years. Our team of experienced physicians brings a broad range of expertise in gastroenterology, including general digestive health, liver disease, women’s digestive health, GERD and esophageal disorders, colorectal cancer prevention, Barrett’s esophagus, nutritional support, and more. From founding physician Dr. Frederick Klein to our experienced physicians Dr. Scott Blinkoff, Dr. Bryan Contreras, Dr. Larissa Allen, and Dr. Kavitha Tipirneni, our team is committed to providing comprehensive, compassionate care for every patient we serve.

Experience and Quality Matter

When it comes to choosing a qualified Gastroenterologist to perform your colonoscopy, there’s one item that matters most: Adenoma Detection Rate (ADR). Arizona Gastroenterology has proudly reported a 38.5-40.50% rate collectively as a group since 2020. ADR is a numeric value that represents the percentage of times your Gastroenterologist detects precancerous polyps during screening colonoscopies. This number is considered a benchmark of quality and care, as it indicates how thorough your doctor will be during your examination. For decades the screening colonoscopy has been recognized as the most effective modality to prevent and detect colorectal cancer. By identifying and removing precancerous polyps (adenomas), colonoscopies save thousands of lives each year. Although gastroenterologists undergo the most extensive training in preforming colonoscopies, their rates of polyp detection can vary significantly. When choosing your Top Doctor to preform your colonoscopy, look for a physician with an ADR of at least 25% in men and 15% in women. The higher the ADR the better. Research shows that for every 1% increase in a physician’s ADR, your risk of colon cancer over the next year decreases by 3%.

Tucson Lifestyle

August 2026

Tucson Lifestyle

April 2026

Tucson Lifestyle

2022-2023

Tucson Lifestyle

April 2024

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