Centennial Gastroenterology Associates is committed to providing excellent evidence-based medical care and are committed to serving all patients with dignity and respect.

We are dedicated to listening to our patients, helping them understand their medical conditions and empowering them to make sound decisions regarding their own health.

Centennial Gastroenterology Associates provides a full range of services, including:

  • Colonoscopy Screening
  • Gastrointestinal Evaluations
  • Management Hepatitis C
  • Management of Liver Disease
  • Upper Endoscopy

Meet Our Providers

Sorin Petre, MD
Shaun McGowan, PA-C
John Walker, MD, FACG
Surin Vasdev, MD
Samantha B. Griffin, FNP-C

Meet your local gastroenterology care professionals.

Our Team

Patient Testimonials

“Dr Petre shows care and concern on every visit.”

“I felt fully confident and comfortable with the entire staff and procedure.”

“Kind, thorough, and attentive.”

“All went above and beyond in their service.”

Things To Know

Patient Surveys

By Press Ganey – Let Us Know and See How We’re Doing

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Screening Saves Lives

The ColoRectal Cancer (CRC) screening tests are now grouped into cancer prevention tests and cancer detection tests.

Colonoscopy beginning at age 50, remains the preferred CRC screening strategy

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