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Dr. Iheanyichukwu Aja-Onu, MD

Gastroenterology* Age 60
Dr. Iheanyichukwu Aja-Onu, MD
3.3 (16 Ratings)
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Dr. Iheanyichukwu Aja-Onu, MD is a Gastroenterologist in Freeport, NY.
Dr. Iheanyichukwu Aja-Onu, MD
3.3 (16 Ratings)
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Dr. Iheanyichukwu Aja-Onu, MD

Gastroenterology* Age 60
Freeport, NY
Call for new patient details
38 years of experience
Dr. Iheanyichukwu Aja-Onu, MD is a Gastroenterologist in Freeport, NY.

About

Dr. Aja-Onu graduated from UNIVERSITY OF NIGERIA / COLLEGE OF MEDICINE. Dr. Iheanyichukwu Aja-Onu, MD is a Gastroenterologist in Freeport, NY and has 38 years experience. Dr. Aja-Onu currently practices at Practice and are affiliated with Saint John's Episcopal Hospital At South Shore, Mercy Medical Center and Mount Sinai South Nassau. Dr. Aja-Onu has experience treating conditions like Gastrointestinal Bleeding, Peptic Ulcer and Gallstones among other conditions at varying frequencies. At present, Dr. Aja-Onu received an average rating of 3.3/5 from patients and has been reviewed 16 times. Dr. Aja-Onu's office is not accepting new patients. Dr. Aja-Onu also speaks Afrikaans. Dr. Aja-Onu is board certified in Internal Medicine and accepts multiple insurance plans.

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Experience Check

Enter a condition or procedure
Gastrointestinal Bleeding
Peptic Ulcer
Gallstones
Gastrointestinal Bleeding
Peptic Ulcer
Gallstones
Gastrointestinal Bleeding
Peptic Ulcer
Gallstones
Gastritis
Malnutrition
Bile Duct Procedure
Abdominal Pain
Acute Gastritis
Anemia
  • View other providers who treat Anemia
Ascites
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Bile Duct Obstruction
Chronic Gastritis
Cirrhosis
Colorectal Polyp
Constipation
Crohn's Disease
Dehydration
Diaphragmatic and Hiatal Hernia
Diarrhea
  • View other providers who treat Diarrhea
Duodenal Cancer
Duodenal Ulcer
Duodenitis
Dysphagia
Esophageal Motility Disorders
Esophageal Ulcer
Esophageal Varices
Esophagitis
Gastric Ulcer
Gastroesophageal Reflux Disease (GERD)
Gastroptosis
Hemorrhoids
Ileus
  • View other providers who treat Ileus
Inflammatory Bowel Disease
Intestinal Diverticulitis
Intestinal Diverticulosis
Intestinal Obstruction
Intestinal Ulcer
Liver Damage from Alcohol
Non-Alcoholic Fatty Liver Disease
Noninfectious Gastroenteritis and Colitis
Pancreatitis
Reflux Esophagitis
Retroperitoneum Cancer
Upper Digestive Tract Cancer
Vomiting Disorders
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Duodenal Polypectomy
Flexible Sigmoidoscopy
Manometry
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Rigid Proctosigmoidoscopy
Alcoholic Cirrhosis
Alcoholic Gastritis
Alcoholic Hepatic Failure
Alcoholic Hepatitis
Anal or Rectal Pain
Anal Sphincter Dysplasia
Barrett's Esophagus
Benign Neoplasm of the Digestive System
Biliary Cirrhosis
Boerhaave's Syndrome
Bowel Strangulation
Celiac Disease
Cholangitis
Chronic Cholecystitis
Congenital Achalasia
Congenital Anomaly Bile Duct
Congenital Anomaly Esophagus
Congenital Anomaly Intestine
Cystic Fibrosis
Diffuse Esophageal Spasm
Dysentery
Enteritis
Eosinophilic Esophagitis
Eosinophilic Gastritis
Esophageal Achalasia and Cardiospasm
Esophageal Diverticulum
Familial Adenomatous Polyposis
Food Allergy
Gas-Bloat Syndrome
Gastrointestinal Malabsorption
Gastroparesis
Heartburn
Hemochromatosis
Hepatitis A
Hepatitis B
Hepatitis B - Immune Response
Hepatitis C
Hepatorenal Syndrome
Hernia
  • View other providers who treat Hernia
Hiatal Hernia
Hiatal Hernia with Obstruction
Indigestion
Infectious Diarrheal Disease
Irritable Bowel Syndrome
Ischemic Colitis
Lactose Intolerance
Large Intestine Infarction
Liver Abscess
Mallory-Weiss Syndrome
Megacolon
Mesenteric Panniculitis
Nausea
  • View other providers who treat Nausea
Neoplasm of Gastrointestinal Tract
Non-Neonatal Jaundice
Pancreatic Pseudocyst
Pelvic Abscess
Pouchitis
Primary Biliary Cholangitis
Primary Sclerosing Cholangitis
Pyloric Stenosis
Rectal Ulcer
Sclerosing Mesenteritis
Spleen Cyst
Splenic Infarct
Splenomegaly
Stomal Ulcer
Ulcerative Colitis
Unexplained Weight Loss
Viral Enteritis
Viral Hepatitis
Vitamin B Complex Deficiency
Vitamin B12 Anemia
Vitamin_Deficiency
Biliary Drainage
Colon Cancer Screening
Colorectal Cancer Screening
Endoscopy
ERCP (Endoscopic Retrograde Cholangiopancreatography)
Fecal Impaction Removal
Gallbladder Scan
Hepatitis A Screening
Hepatitis B Virus Screening
Hepatitis C Virus Screening
Hepatitis Screening
Impedance Testing
Instrumental Diagnostic Evaluation for Dysphagia
Liver Biopsy
Liver Function Test
pH Probe
  • View other providers who treat pH Probe
Screening Colonoscopy
Ultrasound, Endoanal
Ultrasound, Esophageal
VAP Lipid Testing
Wireless pH Testing

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • SimplyBlue/Simply Blue Plus PPO
    BluePPO HSA PPO
  • Navigate HMO
    Options PPO
    Choice Plus POS
    Navigate POS
    Nexus Open Access
  • Fidelis Care
  • MagnaCare PPO
  • MVP Health Plan EPO
  • Blue Card PPO
  • Blue Acess Employer Sponsored
    Empire Hospital
    Empire Hospital/Medical (Trad)
    Empire Blue Cross Blue Shield PPO
  • Freedom
    Liberty
  • Pro Plus Plans EPO
    Total Plans EPO
    Pro Plans EPO
  • LocalPlus
    Cigna HMO
    Cigna PPO
    Open Access Plus
  • Premier Care Network Plus - Innovation Health
    AWH NJ Choice MultiTier - Standard Savings POS II
    AWH NJ Choice MultiTier POS II
    Premier Care Network APCN Choice (OAMC) POS II
    Savings Plus of Metro, NY
    Elect Choice (Open Access) EPO
    Signature Administrators PPO
    APCN Open Access Aetna Select
    Choice Plus POS II
    Aetna HMO
    Open Choice PPO
    Select
    Managed Choice (Open Access) POS

Locations

  1. 1 Main Street Dialysis Center
    3 N Main St, Freeport, NY 11520
    Icon Directions Right Arrow Directions Phone Icon (516) 623-5076

Patient Satisfaction

Likelihood to recommend Dr. Aja-Onu
3.3
Based on 16 Reviews
5 Stars (8)
4 Stars (1)
3 Stars (1)
2 Stars (0)
1 Star (6)

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Patient Reviews
Nov 14, 2022
I was at South Nassau in 2019. No one could figure out what was wrong with me. Infectious disease doctor and staff doctor arguing over what I might of had. Dr. Onu was the only one to figure out I had mono. He was so kind and caring. I will never forget his kindness. Checked on me often. Very kind and caring individual.
— Nov 14, 2022
See more reviews on Healthgrades
Photo: Dr. Iheanyichukwu Aja-Onu, MD
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Dr. Aja-Onu's Office & Staff

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Experience with Dr. Aja-Onu

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About Me

Languages Spoken
Afrikaans
Languages Spoken
Specialties*
Gastroenterology
Internal Medicine
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Education

Education

Medical Education
  • UNIVERSITY OF NIGERIA / COLLEGE OF MEDICINE
    1986
Medical Education

Board Certifications

Board Certifications
  • Internal Medicine and Gastroenterology
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Aja-Onu communicate via email?
No users said yes.
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No
(1)
Does Dr. Aja-Onu offer telehealth services or virtual visits?
2 users said yes.
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(2)
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Does Dr. Aja-Onu offer an online patient portal?
2 users said yes.
Yes
(2)
No
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Does Dr. Aja-Onu have free onsite parking?
2 users said yes.
Yes
(2)
No
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Does Dr. Aja-Onu offer weekend visits?
1 user said yes.
Yes
(1)
No
(0)
Does Dr. Aja-Onu offer evening visits?
1 user said yes.
Yes
(1)
No
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Does Dr. Aja-Onu specialize in working with children or adolescents?
No responses yet.
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(0)
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Does Dr. Aja-Onu specialize in working with seniors?
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Does Dr. Aja-Onu specialize in couples therapy?
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Does Dr. Aja-Onu specialize in working with LGBTQ+ community?
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(0)
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Does Dr. Aja-Onu accept insurance?
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Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Iheanyichukwu Aja-Onu, MD. To arrange an appointment, call the number on Dr. Aja-Onu's profile.

Dr. Aja-Onu frequently treats the following conditions: Gastrointestinal Bleeding, Peptic Ulcer and Gallstones. See more on Sharecare.

Dr. Iheanyichukwu Aja-Onu, MD is affiliated with Saint John's Episcopal Hospital At South Shore, Mercy Medical Center and Mount Sinai South Nassau.

Yes, Dr. Iheanyichukwu Aja-Onu, MD holds board certification in Internal Medicine and Gastroenterology.

Hospital Affiliations

  • Saint John's Episcopal Hospital At South Shore

    327 Beach 19th St, Far Rockaway, NY

  • Mercy Medical Center

    1000 N Village Ave, Rockville Centre, NY

  • Mount Sinai South Nassau

    1 Healthy Way, Oceanside, NY