Dr. Iheanyichukwu Aja-Onu is a gastroenterologist practicing in Oceanside, NY. Dr. Aja-Onu specializes in the digestive system and its diseases that affect the gastrointestinal tract, which include organs from the mouth to the anus as well as liver disorders. Gastroenterology includes conditions such as hepatitis, peptic ulcer disease, colitis, nutritional problems and irritable bowel syndrome. Dr. Aja-Onu performs colonoscopy and endoscopy procedures and provides accurate and thorough care for patients suffering from digestive issues.
Education and Training
Univ Of Nigeria- Coll Of Med- Enugu- Anambra- Nigeria 1986
University Of Nigeria Faculty Of Med University Of Nigeria Teaching Hospital 1986
Internal MedicineAmerican Board of Internal MedicineABIM- Gastroenterology
- Suny Hlth Sci Ctr Brooklyn, Gastroenterology; St Johns Espiscpl Hsp-S Shr, Internal Medicine
- NewYork-Presbyterian/Columbia University Medical Center (Advanced Training)
- SUNY Downstate Medical Center
- SUNY Downstate Medical Center
Articles and Publications
- Co-Author of Many Papers and Publications
Hobbies / Sports
Favorite professional publications
- Gastroenterology Journal
Dr. Iheanyichukwu Aja-Onu, MD, FASGE, FACG's Practice location
Oceanside, NY 11572Get Direction
Freeport, New York 11520Get Direction
Request An Appointment With Dr. Iheanyichukwu Aja-Onu, MD, FASGE, FACG | Gastroenterologist | Gastroenterology
Please note that this request is not considered final until you receive email notification confirming the details.
In the event the doctor is not yet registered with FindaTopDoc, we will contact the office on your behalf in an effort to secure your appointment.
Dr. Iheanyichukwu Aja-Onu, MD, FASGE, FACG's reviewsWrite Review
Get to know Gastroenterologist Dr. Iheanyichukwu Aja-Onu, who serves patients in Oceanside, New York.
Board-certified gastroenterologist, Dr. Aja-Onu, has over three decades of experience in his field. In addition to his affiliation with Mercy Medical Center and St. Catherine of Siena Medical Center, he serves patients at Mount Sinai South Nassau in Oceanside, New York.
Mount Sinai South Nassau is an award-winning, 455-bed, acute care, not-for-profit teaching hospital that provides inpatient, outpatient, home health, restorative, preventive, and emergency medicine services to the area. Prior to his current endeavors, the doctor served as the Chief of Gastroenterology with the SUNY Downstate Medical Center in New York City, New York for over a decade.
His acclaimed career in medicine began in 1986 when he earned his medical degree from the University of Nigeria, Nsukka. Upon relocating to the United States, he went on to complete his internship and residency in internal medicine at St. John’s Episcopal Hospital in New York City, followed by his fellowship in gastroenterology at SUNY Downstate Medical Center.
The co-author of many papers and publications, Dr. Aja-Onu is board-certified in both internal medicine and gastroenterology by the American Board of Internal Medicine – a physician-led, non-profit, independent evaluation organization driven by doctors who want to achieve higher standards for better care in a rapidly changing world. Additionally, he is a Fellow of the American Society for Gastrointestinal Endoscopy and a Fellow of the American College of Gastroenterology.
Gastroenterology is the branch of medicine focused on the digestive system and its disorders. A gastroenterologist is a physician who has extensive training in the diagnosis and treatment of disorders related to the esophagus, stomach, small intestines, colon, liver, pancreas, and biliary system.
Outside of the office, Dr. Aja-Onu enjoys traveling.
- Pete Davidson of SNL Quits Weed After Smoking for Crohn's
Pete Davidson is a 24-year-old American actor and comedian. He is also the youngest cast member on Saturday Night Live (SNL).Davidson opened up about his decision to quit smoking weed on an Instagram post – “just wanted to let you guys know I’m okay. I know I’ve kinda been missing, on social...
- A Link Between Celiac Disease and Infertility
A confusing connection – celiac disease and infertilityHere are some stories about moms who experienced infertility linked to celiac disease.Lindsey Reimer became pregnant in 2013, however, in 2010 she was diagnosed with celiac disease. Seventeen weeks after becoming pregnant, she lost her baby...
- How to Travel with Crohn's and Colitis
People with irritable bowel diseases such as Crohn's Disease or Ulcerative Colitis are often very apprehensive at the thought of trying to plan even a moderately traveled trip, whether by car, train, bus, plane, or cruise or charter ship. However, just because there are some concerns to keep in mind...
- What is Appendicitis? What are the Causes of Appendicitis?
Appendicitis is a condition where the appendix, a small finger-like structure located in the right lower part of the abdomen, gets inflamed. Aside from inflammation, the appendix can burst when it is filled with pus. The appendix is commonly known to have no purpose or function in the human...
- Why Patients' Role in Research is Crucial for Finding a Cure for Celiac Disease
When it comes to celiac disease, there is a lot that is known and a whole lot more that still remains a mystery. At a recent symposium called Beyond Celiac Research, experts came together to discuss what can be done to improve and increase research around celiac disease and possible treatment...
- Do all Anemics Need Blood Transfusions?
Whatever be the underlying cause, the process of blood transfusions is very common. Each year, almost 5 million Americans need blood transfusions, and this procedure is used for people of almost all ages. Getting a blood transfusion can save your life when you’re suffering from a disease or...
- Dr. Santa Nandi MD400 S Oyster Bay Rd Hicksville NY 11801
- Dr. Jerome H. Siegel MD60 East End Avenue New York NY 10028
- Rupa K. Sharma M.D.232 E 30h St New York New York 10016
- Dr. Democleia Panagou Gottesman MD NY 11235
- Dr. Shelby K. Samuel M.D.200 Brooklyn Avenue Brooklyn New York 11213
- Dr. Prithwijit Patrick Basu M.D.5 Stateion Square Forest Hills New York 11375