About Us

Six Board Certified Gastroenterologists

Dr. Ranvir Singh
Dr. Stephen Rashbaum
Dr. Long Nguyen
Dr. Nitin Parikh
Dr. Ruth Montalvo
Tammi D’elena
Vanessa Bridgeman

Digestive Care Physicians LLC have 6 board certified Gastroenterologists, Dr. Ranvir Singh, Dr. Stephen Rashbaum, Dr. Long Nguyen, Dr. Nitin J. Parikh, and Dr. Ruth Montalvo are widely recognized as astute diagnosticians and treatment specialists. Digestive Care Physicians LLC are considered among the best in modern digestive heath care and cancer prevention. Their expertise is focused on the following: Colorectal Cancer prevention, GERD, Barrett’s Esophagus & Esophageal Cancer prevention, and Stomach Cancer prevention.

Digestive Care Specialists, LLC was established in 2008 by Dr. Ranvir Singh. He then established Digestive Care Physicians, LLC with Dr. Stephen J. Rashbaum in May 2011. Dr. Nitin J. Parikh joined the practice in 2016. Dr. Long Nguyen joined the practice in 2017, Dr. Ruth Montalvo in 2018, and Dr. Jae Kim on 2020. Each doctor has received Board Certification in Gastroenterology from the American Board of Internal Medicine (ABIM). Vanessa Bridgeman, MSN, FNP-BC also joined the practice in 2017 and Tammi D’Elena, PA-C, in 2015. Tammi is a Board Certified Physician Assistant, is state certified with the Georgia Medical Board and is a member of the American College of Gastroenterology..

Digestive Care Physicians, LLC now has four convenient locations in north Georgia: Alpharetta, Cumming, Johns Creek, and Lawrenceville.

By providing the most trusted and compassionate care available, Digestive Care Physician’s reputation for excellence is founded on a deep commitment to their patients. They pride themselves on patient centered quality of care and place great emphasis on communication with both the patient and the patient’s physician. Together, as partners, the focus is placed on symptom relief, diagnosing underlying conditions, and finding ways to maintain healthy lifestyle changes for the the best quality of life. Digestive Care Physicians place a high value on educating their patients, and the community at large, on achieving good overall GI health while highlighting the often subtle complexities of GI disorders and diseases.

Our mission at Digestive Care Physicians is to serve the community with pride, excellence and respect. We strive to provide high quality care which is personalized and cost–effective. We will listen to you attentively, answer all your questions and make you an active partner in your care, in a warm and friendly environment. This website has been created to provide you information about our practice. It also educates you about common procedures and diseases related to the digestive system. Our courteous and professional team is always available to assist you and welcomes the opportunity to hear from you. We look forward to a healthy and fruitful relationship.

Board-Certified physicians Dr. Ranvir SinghDr. Stephen RashbaumDr. Nitin J. ParikhDr. Long B. Nguyen, Dr. Ruth Montalvo, and providers Tammi D’Elena, PA-C and Vanessa T. Bridgeman, MSN, APRN, FNP-BC; care for patients in the North Atlanta, GA; area including Johns Creek, GA, Cumming, GA, Lawrenceville, GA,  Alpharetta, GA, and Dawsonville, GA. The in-house endoscopy suite at Digestive Care Physicians is a certified facility which has achieved the highest level of accreditation by the Association for Ambulatory Health Care (AAAHC). If you suffer from gastrointestinal problems, abdominal pain, or need a colorectal cancer screening, contact us at (770) 227-2222 to schedule an appointment.

Contact Us

Please do not include any clinical or personal information on this form. Please contact our office: 770-227-2222

Dr. Ranvir Singh, Dr. Stephen Rashbaum, Dr. Long Nguyen, Dr. Nitin Parikh, Dr. Ruth Montalvo, Tammi D’Elena, PA-C, and Vanessa Bridgeman, MSN, FNP-BC

For clinical questions, please contact our office: 770-227-2222

Digestive Care Physicians is HIPAA Compliant

Best Gastroenterologist