Dr. Iheanyichukwu Aja-Onu M.D., Gastroenterologist

Dr. Iheanyichukwu Aja-Onu M.D.

Gastroenterologist | Gastroenterology

1 Healthy Way Attn: Physician Bill Oceanside NY, 11572

About

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

Board Certification

Internal MedicineAmerican Board of Internal MedicineABIM- Gastroenterology

Provider Details

MaleEnglish

Residency

  • Suny Hlth Sci Ctr Brooklyn, Gastroenterology; St Johns Espiscpl Hsp-S Shr, Internal Medicine  
  • NewYork-Presbyterian/Columbia University Medical Center (Advanced Training)

Internships

  • SUNY Downstate Medical Center

Fellowships

  • SUNY Downstate Medical Center

Articles and Publications

  • Co-Author of Many Papers and Publications

Hobbies / Sports

  • Traveling

Favorite professional publications

  • Gastroenterology Journal

Dr. Iheanyichukwu Aja-Onu M.D.'s Practice location

Practice At 1 Healthy Way Attn: Physician Billing

1 Healthy Way -
Oceanside, NY 11572
Get Direction
New patients: 516-593-7500, 516-255-1600
Fax: 516-255-4672, 516-593-7535

Ocean Gastroenterology

3 N Main St -
Freeport, New York 11520
Get Direction
New patients: 516-623-5076

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Media Releases

Get to know Gastroenterologist Dr. Iheanyichukwu Aja-Onu, who serves the population of Freeport, New York. Dr. Aja-Onu graduated with his Medical Degree from the University of Nigeria, in Nsukka in 1986, giving him over three decade of experience in his field. After obtaining his medical degree he relocated to the United States where he completed his internship with the SUNY Downstate Medical Center followed by his internal medicine residency with St Johns Episcopal Hospital. Dr. Aja-Onu is dual certified in internal medicine and Gastroenterology by the American Board of Internal Medicine. To stay up to date in his field he remains a Fellow of the American College of Gastroenterology and the American Society for Gastrointestinal Endoscopy. He currently practices with Ocean Gastroenterology and is affiliated with South Nassau Communities Hospital and Mercy Medical Center where he holds an expertise in Advanced Endoscopy and related procedures. He previously served as the Chief of Gastroenterology with the SUNY Downstate Medical Center for over a decade. Gastroenterology is the study of the normal function and diseases of the esophagus, stomach, small intestine, colon and rectum, pancreas, gallbladder, bile ducts and liver. It involves a detailed understanding of the normal action (physiology) of the gastrointestinal organs including the movement of material through the stomach and intestine (motility), the digestion and absorption of nutrients into the body, removal of waste from the system, and the function of the liver as a digestive organ. It includes common and important conditions such as colon polyps and cancer, hepatitis, gastroesophageal reflux (heartburn), peptic ulcer disease, colitis, gallbladder and biliary tract disease, nutritional problems, Irritable Bowel Syndrome (IBS), and pancreatitis. In essence, all normal activity and disease of the digestive organs are part of the study of Gastroenterology. When not working, Dr. Aja-Onu enjoys traveling.

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Nearby Providers

Nearest Hospitals

WINTHROP-UNIVERSITY HOSPITALl

259 FIRST STREET MINEOLA NY 11501

Head west 285 ft
Turn right onto Nassau Parkway 368 ft
Turn right onto Oceanside Road 1467 ft
Turn left onto Merrick Road 889 ft
Turn right onto North Long Beach Road 2.0 mi
Continue straight onto Long Beach Road 1535 ft
Turn left onto Beech Street 1096 ft
Turn right onto Hempstead Avenue 992 ft
Continue straight onto South Franklin Street 2.1 mi
Continue straight onto Franklin Avenue 1.6 mi
Continue straight onto Mineola Boulevard 969 ft
Turn left onto 2nd Street 950 ft
You have arrived at your destination, on the right

MERCY MEDICAL CENTERl

1000 NORTH VILLAGE AVENUE ROCKVILLE CENTRE NY 11570

Head west 285 ft
Turn right onto Nassau Parkway 368 ft
Turn right onto Oceanside Road 1467 ft
Turn left onto Merrick Road 889 ft
Turn right onto North Long Beach Road 1.2 mi
Turn left onto De Mott Avenue 4004 ft
Turn right onto North Village Avenue 4700 ft
Turn right 250 ft
You have arrived at your destination, on the right

FRANKLIN HOSPITALl

900 FRANKLIN AVENUE VALLEY STREAM NY 11580

Head west 285 ft
Turn right onto Nassau Parkway 368 ft
Turn right onto Oceanside Road 1467 ft
Turn left onto Merrick Road 1.4 mi
Turn right onto Ocean Avenue 3138 ft
Turn left onto Lakeview Avenue 4918 ft
Continue straight onto Franklin Avenue 1.1 mi
You have arrived at your destination, on the left

NASSAU UNIVERSITY MEDICAL CENTERl

2201 HEMPSTEAD TURNPIKE EAST MEADOW NY 11554

Head southeast on North Main Street 729 ft
Turn left onto Sunrise Highway (NY 27) 4186 ft
Take the ramp on the right 598 ft
Merge left onto Meadowbrook State Parkway (M) 4.3 mi
Take the ramp on the right towards NY 24 East: East Meadow 1262 ft
Make a slight right onto Hempstead Tpke (NY 24) 1.4 mi
Make a U-turn onto Hempstead Turnpike (NY 24) 316 ft
You have arrived at your destination, on the right

SOUTH NASSAU COMMUNITIES HOSPITALl

ONE HEALTHY WAY OCEANSIDE NY 11572

Head southeast on North Main Street 681 ft
Make a sharp right onto Sunrise Highway (NY 27) 2.6 mi
Keep in the middle 309 ft
Turn left onto North Long Beach Road 1185 ft
Turn left onto Merrick Road 889 ft
Turn right onto Oceanside Road 1467 ft
Turn left onto Nassau Parkway 368 ft
Turn left 285 ft
You have arrived at your destination, on the left

MERCY MEDICAL CENTERl

1000 NORTH VILLAGE AVENUE ROCKVILLE CENTRE NY 11570

Head northwest on North Main Street 1.1 mi
Continue straight onto Nassau Road 1.0 mi
Turn left onto Pine Street 230 ft
Take the ramp on the left 426 ft
Merge left onto Southern State Parkway (SO) 2.1 mi
Take the ramp on the right towards Peninsula Boulevard South 660 ft
Go straight onto Peninsula Boulevard 1296 ft
Make a slight left 229 ft
Make a slight left 250 ft
You have arrived at your destination, on the right