IA
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Aja-Onu, Gastroenterologist in Freeport, NY?
Dr. Iheanyichukwu Aja-Onu, MD is a Gastroenterologist, who primarily practices in Freeport, NY with 1 additional practice location. He is board certified by the American Board of Internal Medicine. Dr. Aja-Onu completed his residency at Suny Hlth Sci Ctr Brooklyn, Gastroenterology; St Johns Espiscpl Hsp-S Shr, Internal Medicine. Dr. Aja-Onu is fluent in English and Igbo, and is currently seeing new patients. Dr. Aja-Onu’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Aja-Onu’s office at (516) 623-5076.
Where did Dr. Aja-Onu go to medical school and complete their residency?
Residency: Suny Hlth Sci Ctr Brooklyn, Gastroenterology; St Johns Espiscpl Hsp-S Shr, Internal Medicine
Medical School: University Of Nigeria- Coll Of Med- Enugu- Anambra- Nigeria | University of Nigeria, Fac of Medicine
Is Dr. Aja-Onu board certified in Gastroenterologist?
Yes, Dr. Iheanyichukwu Aja-Onu, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Aja-Onu speak?
Dr. Aja-Onu and their clinical team can communicate with patients in the following languages:
English
Igbo
What conditions does Dr. Aja-Onu treat?
As a Gastroenterologist, Dr. Aja-Onu diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Aja-Onu. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Peptic Ulcer
- Peptic Ulcers (Stomach or Duodenal Ulcers)
- Stomach or duodenal ulcer
- GI ulcer
- Digestive tract ulcer
ICD-10 Codes:
- K279: Peptic ulcer, site unspecified, unspecified as acute or chronic, without hemorrhage or perforation
Also known as:
- Colon Cancer Screening
- Health Screening
- Colorectal Cancer Screening (PDQ®)
- Screening Tests to Detect Colorectal Cancer and Polyps
- Tests to Detect Colorectal Cancer and Polyps
- Colorectal Cancer Screening
- Colonoscopy Screening
- Bowel Cancer Screening
ICD-10 Codes:
- Z1211: Encounter for screening for malignant neoplasm of colon
Also known as:
- Gastrointestinal Bleeding
- Gastrointestinal (GI) Bleeding
- GI Bleeding
- Internal Digestive Bleeding
- Digestive Tract Hemorrhage
ICD-10 Codes:
- K922: Gastrointestinal hemorrhage, unspecified
Also known as:
- Abdominal Pain
- Stomach Ache
- Belly Pain
- Stomach Pain
ICD-10 Codes:
- R109: Unspecified abdominal pain
Also known as:
- Difficulty Swallowing
- Swallowing Disorder
- Dysphagia
- Trouble swallowing
- Painful swallowing
ICD-10 Codes:
- R1310: Dysphagia, unspecified
Also known as:
- Obstructed Bile Duct Stones
- Bile Duct Stones
- Gallstones
- Blocked bile duct stones
- Obstructive choledocholithiasis
- Choledocholithiasis
- Biliary duct calculi
ICD-10 Codes:
- K8051: Calculus of bile duct without cholangitis or cholecystitis with obstruction
- K8050: Calculus of bile duct without cholangitis or cholecystitis without obstruction
Also known as:
- Anemia
- Low Red Blood Cell Count
- Low Hemoglobin
- Iron deficiency
ICD-10 Codes:
- D649: Anemia, unspecified
Also known as:
- Abnormal Liver Function Test
- Liver Disease
- Irregular Liver Function Study
- Unusual Liver Exam
- Liver Disease Diagnosis
ICD-10 Codes:
- R945: Abnormal results of liver function studies
Also known as:
- Indeterminate Colitis
- Unclassified Colitis
- Colitis of Unknown Type
- Chronic Colitis
ICD-10 Codes:
- K523: Indeterminate colitis
Also known as:
- Constipation
- Difficulty Passing Stool
- Infrequent Bowel Movements
- Hard Stools
ICD-10 Codes:
- K5900: Constipation, unspecified
Also known as:
- First Degree Hemorrhoids
- Hemorrhoids
- Internal hemorrhoids
- Grade 1 hemorrhoids
- Mild hemorrhoids
ICD-10 Codes:
- K640: First degree hemorrhoids
Also known as:
- Fatty Liver Disease
- Liver Disease
- Nonalcoholic Fatty Liver Disease (NAFLD) & NASH
- Nonalcoholic Fatty Liver Disease & NASH in Children
- NAFLD
- NASH
- Hepatic steatosis
ICD-10 Codes:
- K760: Fatty (change of) liver, not elsewhere classified
Also known as:
- High Liver Enzymes
- ALT Blood Test
- AST Test
- Elevated ALT
- Elevated AST
- Abnormal liver function test
ICD-10 Codes:
- R7401: Elevation of levels of liver transaminase levels
Also known as:
- H. Pylori Infection
- Helicobacter Pylori Infection
- Helicobacter pylori infection
- Stomach bacteria infection
- H. pylori bacteria
ICD-10 Codes:
- B9681: Helicobacter pylori [H. pylori] as the cause of diseases classified elsewhere
Also known as:
- Non-Infectious Gastroenteritis and Colitis
- Digestive Disease
- Inflammation of Stomach and Intestines
- Non-Bacterial Colitis
- Gut Inflammation
ICD-10 Codes:
- K529: Noninfective gastroenteritis and colitis, unspecified
Also known as:
- Acute Pancreatitis
- Pancreatitis
- Sudden Pancreas Inflammation
- Acute Pancreas Attack
ICD-10 Codes:
- K8590: Acute pancreatitis without necrosis or infection, unspecified
Also known as:
- Ulcerative Colitis
- Colitis
- Inflammatory Bowel Disease (IBD)
- Chronic Colitis
ICD-10 Codes:
- K5190: Ulcerative colitis, unspecified, without complications
Also known as:
- Diarrhea
- Loose stools
- Runny poop
- Frequent bowel movements
ICD-10 Codes:
- R197: Diarrhea, unspecified
Also known as:
- Unexplained Weight Loss
- Involuntary Weight Loss
- Significant Weight Loss
- Unintentional Weight Loss
ICD-10 Codes:
- R634: Abnormal weight loss
Which procedures does Dr. Aja-Onu perform as a Gastroenterologist?
As a Gastroenterologist, procedures performed by a Dr. Iheanyichukwu Aja-Onu may include:
- Colonoscopy
- Colonoscopy Consultation
- Colorectal Cancer Screening
- Endoscopic Ultrasound
- Endoscopy / Endoscopic Ultrasound
- Gastric Balloon
- Gastric Stimulator Implantation Consultation
- Gastric Stimulator Implantation Follow Up
For detailed information, please contact Dr. Aja-Onu's office.
Does Dr. Aja-Onu accept my insurance?
Dr. Aja-Onu accepts most major insurance plans. Important: Please call our office at (516) 623-5076 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Aja-Onu accept in Freeport, NY?
Dr. Aja-Onu in Freeport, NY accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Centers Plan for Healthy Living
CVS Health (formerly Aetna)
Elderplan
Express Scripts
Humana
Medicare
National Benefit Fund
Service Employees International Union (SEIU)
View All Insurances
Where is Dr. Aja-Onu's office located?
Dr. Iheanyichukwu Aja-Onu's Primary Practice
3 N Main St
Freeport, NY 11520
(516) 623-5076
What is Dr. Aja-Onu's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Aja-Onu's National Provider Identifier (NPI) number is 1720077944.
What common questions do patients ask about Dr. Aja-Onu?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Aja-Onu
What is Dr. Iheanyichukwu Aja-Onu's specialty?
Dr. Aja-Onu is a Gastroenterologist near Freeport, NY. An internist focused on diagnosing and treating disorders of the digestive system, encompassing the stomach, intestines, liver, and gallbladder. This specialist manages conditions like abdominal pain, ulcers, diarrhea, cancer, and jaundice, and performs intricate diagnostic and therapeutic procedures using endoscopes to examine internal organs. Contact Dr. Aja-Onu to book an appointment today.
Is this Dr. Iheanyichukwu Aja-Onu affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Aja-Onu is affiliated with Mercy Hospital - Rockville Centre which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Gastroenterologist?
Explore Gastroenterologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Iheanyichukwu Aja-Onu accepting new patients in Freeport, NY?
Yes, Dr. Iheanyichukwu Aja-Onu is accepting new patients at this time.
Does Dr. Iheanyichukwu Aja-Onu offer online booking?
Please contact Dr. Aja-Onu's office at (516) 623-5076 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Iheanyichukwu Aja-Onu?
Please contact Dr. Aja-Onu's office at (516) 623-5076 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Iheanyichukwu Aja-Onu have?
Dr. Iheanyichukwu Aja-Onu is certified by the American Board of Internal Medicine.
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