Summary

Dr. Gregory Nelligan has practiced gastroenterology and internal medicine for 43 years. He sees patients in Rockford, Illinois, and completed his residency at Finch University of Health Sciences. Patients on Vitals rate Dr. Nelligan 5 out of 5.

Overview based on verified provider data

Quick Facts

  • 5
  • 43 years of experience
  • Finch University Of Health Sciences
  • 2 specialties
  • 11 areas of expertise
  • 1 office location
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Location

Rockford Va Outpatient Clinic

816 Featherstone RdRockford, IL 61107
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed

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Dr. Gregory Keith Nelligan, MDJi Soo Choi, APRNJan Seiler, APRNDr. George B Beranek, MD
GastroenterologyGastroenterologyGastroenterologyEmergency Medicine
Accepts New Patients Accepts New Patients
5 
0 
0 
0 
43 Years of Experience 41 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available No Virtual Visit Option
Speaks English Speaks English
Rockford , ILSacramento , CAMontgomery , ALRockford , IL
Med School: University Of Illinois At Chicago College Of Medicine Med School: New York University Med School: Georgia State University Med School: UNIVERSITY OF ILLINOIS COLLEGE OF MEDICINE
Current Profile
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Insurance Plans Accepted by Dr. Gregory Keith Nelligan

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Gregory Keith Nelligan has the following 2 specialties

Specialty Expertise

Dr. Gregory Keith Nelligan has the following 11 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Hemorrhoids
  • Hepatitis C
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

43 Years Experience

Dr. Gregory Keith Nelligan holds an expired medical license in the state of Illinois.

Medical License

Medical Doctor with an expired medical license in the state of Illinois that expired in 2026.

Education & Training

Residency

Completed their residency at Finch University Of Health Sciences.

Medical School

Graduated from University Of Illinois At Chicago College Of Medicine in 1983.

NPI Number

Dr. Nelligan's NPI number is 1205924842.

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Frequently Asked Questions

Where is Dr. Gregory Nelligan's office located?
Dr. Gregory Nelligan's office is located at 816 Featherstone Rd, Rockford, IL, 61107.
Does Dr. Gregory Nelligan accept my insurance?
You can see the insurance plans that Dr. Gregory Nelligan accepts on their Vitals profile.
Does Dr. Gregory Nelligan accept virtual/telehealth appointments?
Dr. Gregory Nelligan has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Is Dr. Gregory Nelligan accepting new patients?
Dr. Gregory Nelligan has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. Gregory Nelligan?
You can find contact information for Dr. Gregory Nelligan here on Vitals.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards

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