Summary

Dr. Thomas Nealis is a gastroenterologist who focuses on digestive health and related conditions. He earned his medical degree from Georgetown University School of Medicine and completed both his residency and fellowship training at McGaw Medical Center of Northwestern University, finishing his fellowship in 2012. With 20 years of clinical experience, Dr. Nealis brings extensive expertise to his practice. He is fluent in both English and Spanish.

Dr. Nealis practices at Northwestern Memorial Hospital and sees patients at the Northwestern Medicine Digestive Health Center in Chicago, Illinois. He specializes in treating conditions such as anemia, colon polyps, and colorectal cancer. His procedural expertise includes performing colonoscopies, lower GI endoscopy, and laparoscopic procedures. Patients have given him an average rating of 3.0 on Vitals.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 3
  • 20 years of experience
  • 14 insurance plans accepted
  • speaks English, Spanish
  • McGaw Medical Center of Northwestern University
  • 1 written review
  • 2 specialties
  • 14 areas of expertise
  • 1 hospital affiliation
  • 1 office location
  • Male

Office Location

Northwestern Medicine Digestive Health Center

259 E Erie St Lavin Family Pavilion, Ste 1600Chicago, IL 60611

Compare with Similar Doctors

Thomas B. Nealis, MD
Dr. Amit Kalra, MD
Dr. Kevin Liebovich, MD
Dr. Darren Ballard, MD
Thomas B. Nealis, MDDr. Amit Kalra, MDDr. Kevin Liebovich, MDDr. Darren Ballard, MD
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.5 
4.1 
20 Years of Experience 27 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English Speaks English Speaks English
Chicago , ILHighland Park , ILGurnee , ILHomewood , IL
Med School: Georgetown University School of Medicine Med School: University of Illinois Med School: Loyola University of Chicago, Stritch School of Medicine Med School: Loyola University
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Thomas B. Nealis

  • Aetna
  • Aetna - HMO
  • Blue Cross Blue Shield of Illinois
  • Cigna
  • Health Net - HMO
  • HealthPartners
  • Humana
  • Medicare
  • Medicare - Medicare
  • Mercy Care
  • Meritain Health
  • UnitedHealthcare
  • Wellcare - Medicaid (Managed)
  • Zing Health - Medicare

Medical Specialties

Thomas B. Nealis has the following 2 specialties

Specialty Expertise

Thomas B. Nealis has the following 14 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colon Cancer
  • Colon Tumor (Adenomatous Polyps)
  • Colonoscopy
  • Constipation
  • Diarrhea
  • Gastroenterologist
  • Hemorrhoids
  • Inflammatory Bowel Diseases (IBD)
  • Irritable Bowel Syndrome (IBS)
  • Obesity
  • Ulcerative Colitis

Certifications, License, & Education

20 Years Experience

Thomas B. Nealis 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

Fellowship

Completed their fellowship at McGaw Medical Center of Northwestern University in 2012.

Residency

Completed their residency at McGaw Medical Center of Northwestern University in 2009.

Medical School

Graduated from Georgetown University School of Medicine in 2006.

NPI Number

Thomas B. Nealis' NPI number is 1841456423.

Similar doctors

Frequently Asked Questions

Where is Thomas Nealis's office located?
Thomas Nealis's office is located at 259 E Erie St Lavin Family Pavilion, Ste 1600, Chicago, IL, 60611.
Is Thomas Nealis accepting new patients?
Thomas Nealis is accepting new patients on Vitals. View Thomas Nealis's profile on Vitals to make an appointment.
Does Thomas Nealis accept my insurance?
You can see the insurance plans that Thomas Nealis accepts on their Vitals profile.
Which hospitals is Thomas Nealis affiliated with?
Thomas Nealis is affiliated with Northwestern Memorial Hospital.
How can I make an appointment with Thomas Nealis?
You can find contact information for Thomas Nealis here on Vitals.

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.