- Gastroenterologists
- IL
- Rockford, IL
- Dr. Gregory Nelligan, MD
Dr. Gregory Nelligan, MD
Gastroenterology•Male•Age 65
Gastroenterology
Dr. Gregory Nelligan, MD is a Gastroenterology Specialist in Rockford, IL and has over 39 years of experience in the medical field. He graduated from University of Illinois College of Medicine medical school in 1983.

Rockford Va Clinic
816 Featherstone Rd Rockford, IL 61107 ()Make an Appointment
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Compare Dr. Nelligan with our nearby Gastroenterology Specialists at Cancer Treatment Center of America, Chicago.
Make an appointment at Cancer Treatment Center of America, Chicago today at (312) 820-0151.
These providers are on the medical staff of Cancer Treatment Center of America, Chicago.
Dr. Nelligan's Reviews
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5.0
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Likelihood of recommending Dr. Nelligan to family and friends is 5 out of 5
About Me
Biography
Specialties
- Gastroenterology
Board Certifications
- Gastroenterology
- Internal Medicine
Education
Awards
- Healthgrades Honor Roll
Frequently Asked Questions
What other Gastroenterology Specialists practice nearby?
Click here to compare with other Gastroenterology Specialists.
What are Dr. Gregory Nelligan, MD's top areas of care?
Dr. Nelligan frequently treats pH Probe, Colon Cancer Screening, and Screening Colonoscopy. See all procedures and conditions Dr. Nelligan treats.
Where is Dr. Gregory Nelligan, MD's office located?
Dr. Nelligan's office is located at 816 Featherstone Rd, Rockford, IL 61107. Find other locations and directions on Healthgrades.
Does Dr. Gregory Nelligan, MD offer telehealth services?
Dr. Nelligan has not yet indicated whether they offer telehealth services. Please contact the office to check for availability/eligibility.
How can I make an appointment with Dr. Gregory Nelligan, MD?
Find contact information here to make an appointment.
Experience and Background Checks
Background Check
Dr. Nelligan's Top Procedures and Conditions
Treatment Frequency
Dr. Nelligan performs pH Probe more than 80% of his peers
Dr. Nelligan performs this procedure more than 80% of his peers
Treatment Frequency
Dr. Nelligan performs Colon Cancer Screening more than 80% of his peers
Dr. Nelligan performs this procedure more than 80% of his peers
Treatment Frequency
Dr. Nelligan performs Screening Colonoscopy more than 80% of his peers
Dr. Nelligan performs this procedure more than 80% of his peers
Dr. Nelligan's conditions and procedures:
- Abdominal Pain
- Anal or Rectal Pain
- Anemia
- Barrett's Esophagus
- Benign Neoplasm of the Digestive System
- Celiac Disease
- Cirrhosis
- Colon Cancer Screening
- Colorectal Cancer Screening
- Constipation
- Crohn's Disease
- Diarrhea
- Diffuse Esophageal Spasm
- Diverticulitis, Intestinal
- Diverticulosis, Intestinal
- Dysphagia
- Eosinophilic Esophagitis
- Esophageal Diverticulum
- Esophageal Motility Disorders
- Esophageal Varices
- Esophagitis
- Gallbladder Scan
- Gallstones
- Gas-Bloat Syndrome
- Gastritis
- Gastroesophageal Reflux Disease (GERD)
- Gastrointestinal Malabsorption
- Gastroparesis
- Heartburn
- Hemochromatosis
- Hemorrhoids
- Hepatitis A Screening
- Hepatitis B - Immune Response
- Hepatitis B Virus Screening
- Hepatitis C
- Hepatitis C Virus Screening
- Hepatitis Screening
- Impedance Testing
- Inflammatory Bowel Disease
- Instrumental Diagnostic Evaluation for Dysphagia
- Intestinal Obstruction
- Irritable Bowel Syndrome
- Lactose Intolerance
- Liver Damage from Alcohol
- Liver Function Test
- Nausea
- Non-Alcoholic Fatty Liver Disease
- Noninfectious Gastroenteritis and Colitis
- Peptic Ulcer
- pH Probe
- Reflux Esophagitis
- Screening Colonoscopy
- Ulcerative Colitis
- Ultrasound, Endoanal
- Ultrasound, Esophageal
- Unexplained Weight Loss
- VAP Lipid Testing
- Viral Hepatitis
- Vomiting Disorders
- Wireless pH Testing
Insurance Check
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Locations
Practice
Compare with other Gastroenterology Specialists
Compare Dr. Nelligan with our nearby Gastroenterology Specialists at Cancer Treatment Center of America, Chicago.
Make an appointment at Cancer Treatment Center of America, Chicago today at (312) 820-0151.
These providers are on the medical staff of Cancer Treatment Center of America, Chicago.
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