Adenoma Detection Rate

Why do You Need a Colonoscopy Screening?

The goals of a screening colonoscopy are to prevent colorectal cancer by identifying and removing adenomas and to identify colon or colorectal cancer if it is already present. The most important quality indicator, the Adenoma Detection Rate is the proportion of average-risk patients in whom a physician identifies adenomas during colonoscopy.

Learn More+

Meet the Rest of Our Team

Ranvir Singh, M.D. | Digestive Care Physicians

Ranvir Singh, MD

portrait of Long Nguyen, D.O. | Digestive Care Physicians

Long B. Nguyen, DO

portrait of Stephen Rashbaum, M.D. | Digestive Care Physicians

Stephen Rashbaum, MD

Vanessa Dang, MSN, FNP-BC | Digestive Care Physicians

Vanessa T. Dang, MSN, APRN, FNP-BC

portrait of Nitin Parikh, M.D. | Digestive Care Physicians

Nitin J. Parikh, MD

headshot of Tammi D’Elena, PA-C | Digestive Care Physicians

Tammi D’Elena, PA-C

Digestive Care Physicians, LLC is a single specialty gastroenterology practice serving the Metro Atlanta, GA area since 2008. Physicians, Dr. Ranvir Singh, Dr. Stephen Rashbaum, and Dr. Nitin J. Parikh, warmly welcome new partner Dr. Long Nguyen, and new physician Dr. Ruth Montalvo and one new associate, Vanessa Dang, MSN, FNP-NB to Digestive Care Physicians. Our new colleagues are board certified in gastroenterology and/or internal medicine and greatly appreciate the opportunity to serve your medical needs. Dr. Long Nguyen, and Vanessa Dang, MSN, FNP-NB, speak English, and Vietnamese at the Johns Creek and Lawrenceville locations. In addition to our growing staff, Digestive Care Physicians is adding a new location in Lawrenceville, GA. All of our physicians provide state-of-the-art care at our freestanding endoscopy center, Digestive Care Endoscopy. Learn more about our in-house endoscopy center+.


Meet Our Newest Physician

Dr. Ruth Montalvo Digestive Care PhysicansDigestive Care Physicians welcome their newest member, Dr. Ruth Montalvo. She comes from Albany, Georgia with over 18 years of experience as a gastroenterologist. As an advocate of screenings, she knows lives can be saved with early treatment and preventative measures. Learn more about Dr. Montalvo.

She is a member of the American Society for Gastrointestinal Endoscopy and American Gastroenterology.

Dr. Montalvo is fluent in both English and Spanish.


Finance Options

If you’re considering a health care procedure, you may have concerns over how to pay for it. We accept most all types of insurance plans but if you need a financing option, we offer convenient finance options through Enhanced Patient Financing. Learn more about how you can structure a payment plan that meets your budget, allowing you to proceed with your doctor’s treatment recommendations.

Self-Pay Option

We offer a convenience Self-Pay option for our patients. See our Self-Pay Brochure. We accept cash, debit, money order or credit cards. No personal checks.

Self-Pay Colonoscopy: $1375.00*

(Includes Anesthesia, Physician Fee, Facility Fee)
2 Pathology specimens included in price, any additional at $95 each to be billed/refunded after procedure.

Read Our Recent Blogs

Communicate With Your Physician

Access Your Health Records

View Test Results



November, 2019

Five star reviews


I see Dr. Singh. Excellent staff who show genuine concern and listen attentively. I am very impressed and recommend this practice to everyone.

Carlos Nunez – Verified google Review

September, 2019

Five star reviews


Dr. Parik is hands-down the best we have seen. We would highly recommend this practice. His entire staff is friendly and personable too!

Sara Strish – Verified Google Review

June, 2019

Five star reviews


Dr Montalvo is so caring and committed to her patients. She takes the time to listen, and hear the patient. Her appointments are thorough and in-depth. Her kindness makes you glad that you selected her.

Dawn Stastny – Verified Google Review

April, 2019

Five star reviews


I had a professional but caring out-patient surgery experience with Dr Rashbaum and the staff at Emory Johns Creek hospital. The doctor explained the outcome clearly and I was treated well.

Melanie Wible – Verified google Review

March, 2019

Five star reviews

Had a procedure done there last Friday. The entire staff was very professional, courteous, friendly and extremely accommodating…thank you all so much! –
Everyone was very friendly, helpful and attentive. It was a very pleasant experience despite what we were doing! Thank you!

T Mark Adams – Verified Facebook Review

What is a Low Fodmap Diet?

Stephen Rashbaum, MD Named Top Doc


Atlanta Area, board certified gastroenterologist, Dr. Stephen Rashbaum, has been named as one of America’s “Top Docs” as vetted by leading medical database authority Castle Connolly. Top Doctors are chosen annually through an extensive survey process of thousands of American doctors. Read more about Dr. Rashbaum and his inclusion into this esteemed group of physicians+.

HIPPA Compliant

HIPAA Compliant logo | Digestive Care Physicians