Dr. David J. Congdon and his advanced specialized care centers feature a team of skilled, knowledgeable providers with decades of experience in their fields and extensive training and professional certifications and memberships. Drawing on this background, our team focuses on providing the highest level of care to you, the patient, in multiple specialty areas such as otolaryngology, skin, and hearing.... Read More about Cedar Valley ASCENT - Hearing

Srinivas Kalala, MD, FACG, AGAF is a board-certified gastroenterologist at Digestive Health Center in Waterloo, Iowa, practicing digestive health since 2008. He completed his residency at Westchester Medical Center, New York Medical College, where he also served as chief resident, followed by a fellowship in Gastroenterology and Hepatobiliary Diseases at the same institution. Dr. Kalala is board certified by the... Read More about Srinivas Kalala, MD, FACG, AGAF

Kavan Patel, MD is a board-certified gastroenterologist at Digestive Health Center in Waterloo, Iowa, practicing digestive health since 2012. He earned his medical degree from St. George's University School of Medicine in Great River, New York, and completed his internal medicine residency and gastroenterology fellowship at Cooper University Hospital in Camden, New Jersey. Dr. Patel is board certified by the... Read More about Kavan Patel, MD

Taha Ashraf, MD is a board-certified gastroenterologist at Digestive Health Center in Waterloo, Iowa, practicing digestive health since 2012. Dr. Ashraf earned his medical degree from Liaquat National Hospital & Medical College in Karachi, Pakistan, and completed his internal medicine residency and gastroenterology fellowship at Henry Ford Hospital in Detroit, MI. He is board certified by the American Board of... Read More about Taha Ashraf, MD

Since 1989, Digestive Health Center has provided the Cedar Valley with expert, compassionate treatment of digestive disorders and diseases. Our team of professionals offers leading-edge technology and treatment close to home in Waterloo, IA. We provide a full range of GI procedures, including colonoscopy, upper GI endoscopy, capsule endoscopy, sigmoidoscopy, ERCP and Remicade infusion, along with on-site dietitian services and... Read More about Digestive Health Center

Moaz Sial, MD has been practicing digestive health since 2020. He graduated from Nishtar Medical College in 2012 and completed his residency at Allegheny General Hospital in 2017. He is certified by the American Board of Internal Medicine for Internal Medicine and is board eligible for Gastroenterology as well.

Richard Manfready, MD studied for his medical degree at Tufts University School of Medicine in Boston, Massachusetts and graduated in 2017. He completed his residency at Icahn School of Medicine in 2020 and his fellowship at Rush University in 2023. He is board certified in Internal Medicine and is board eligible for Gastroenterology from the American Board of Internal Medicine.

Mallavarapu, Ravi, MD Practicing Digestive Health since 2002 Professional Interests Inflammatory bowel disease, gastroesophageal reflux disease, liver diseases, and colon cancer screening Personal Interests Traveling, biking, and spending quality time with his children and family Specialty Practicing Digestive Health since 2002.

Dr. Rodriguez and his advanced specialized care centers feature a team of skilled, knowledgeable providers with decades of experience in their fields and extensive training and professional certifications and memberships. Drawing on this background, our team focuses on providing the highest level of care to you, the patient, in multiple specialty areas such as otolaryngology, skin and hearing. This commitment... Read More about Cedar Valley ASCENT - ENT, Sinus & Allergy

Patients have trusted the specialists at Cedar Valley Digestive Health Center since 1989 for the treatment of digestive disorders and diseases. With a staff of nearly 50 professionals - including 4 gastroenterologists, 3 nurse practitioners, and multiple registered nurses, patient care coordinators, endoscopy technicians and other dedicated professionals - we have more than 12,000 office visits and perform more than... Read More about Digestive Health Center