Thomas B. Nealis
Experienced in Marginal Zone Lymphoma (MZL)

Dr. Thomas B. Nealis

Gastroenterology
Northwestern Medical Group
259 E Erie St Ste 1600, Lavin Family Pavilion, 
Chicago, IL 
Offers Telehealth
20 Years of Experience

Experienced in Marginal Zone Lymphoma (MZL)
Northwestern Medical Group
259 E Erie St Ste 1600, Lavin Family Pavilion, 
Chicago, IL 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

Thomas Nealis is a Gastroenterologist in Chicago, Illinois. Dr. Nealis has been practicing medicine for over 20 years and is rated as an Experienced provider by MediFind in the treatment of Marginal Zone Lymphoma (MZL). His top areas of expertise are Familial Adenomatous Polyposis, Trichohepatoenteric Syndrome, Diarrhea, Gastrectomy, and Endoscopy.

His clinical research consists of co-authoring 2 peer reviewed articles. MediFind looks at clinical research from the past 15 years.

Graduate Institution
Georgetown University School Of Medicine, 2006.0
Residency
McGaw Medical Center of Northwestern University
Specialties
Gastroenterology
Licenses
Internal Medicine in IL
Board Certifications
American Board Of Internal Medicine - Gastroenterology (Certified)
Fellowships
McGaw Medical Center of Northwestern University
Hospital Affiliations
Northwestern Memorial Hospital
Languages Spoken
English
Gender
Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

Find your insurance
Find your insuranceClose

Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Alignment Health Plan
  • MEDICARE MAPD
  • MEDICARE SNP
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Anthem
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
Blue Shield of California
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
CareFirst
  • HMO
  • POS
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
Health Alliance
  • EPO
  • HMO
  • POS
  • PPO
Health Care Services Corporation
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
HealthPartners
  • POS
  • PPO
Highmark
  • EPO
  • HMO
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Independent Health
  • EPO
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Meridian Choice
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Nippon Life
  • INSURANCE PLAN
Northern Plains Alliance
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE PDP
Premera Blue Cross
  • INSURANCE PLAN
  • MEDICARE MAPD
  • OTHER COMMERCIAL
  • PPO
TeamCare
  • OTHER COMMERCIAL
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Walgreens
  • MEDICARE DISCOUNT CARD
  • MEDICARE PDP
  • OTHER MEDICARE
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 18 Less Insurance Carriers -

Locations

259 E Erie St Ste 1600, Lavin Family Pavilion, Chicago, IL 60611
Call: 312-695-5620

Additional Areas of Focus

Dr. Nealis has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.

Anemia

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.


2 Total Publications

Partial recovery of peristalsis after myotomy for achalasia: more the rule than the exception.
Partial recovery of peristalsis after myotomy for achalasia: more the rule than the exception.
Journal: JAMA surgery
Published: February 22, 2013
View All 2 Publications
Similar Doctors
Mukund Venu
Advanced in Marginal Zone Lymphoma (MZL)
Dr. Mukund Venu
Gastroenterology
Advanced in Marginal Zone Lymphoma (MZL)
Dr. Mukund Venu
Gastroenterology

Midwest Digestive Health And Nutrition

900 East Rand Road, Suite 120, 
Des Plaines, IL 
 (18.5 miles away)
312-767-3244
Languages Spoken:
English
See accepted insurances
Offers Telehealth

Dr. Mukund Venu is a Wisconsin native and has lived in the Chicago area for over 10 years. He graduated from Saint Louis University, where he earned both his B.A. in history and medical degree. He completed his internal medicine residency training and gastroenterology and hepatology fellowship training at Medical College of Wisconsin. He also completed a visiting professorship at the Mayo Clinic.Dr. Venu is a board-certified gastroenterologist who specializes in general gastroenterology, colon cancer screening, esophageal disorders, as well as endoscopy and colonoscopy procedures. He is an active member of American Gastroenterological Association, where he serves on the Nominating Committee, as well as the American College of Gastroenterology where he serves on the Training Committee. Dr. Venu is rated as a Distinguished provider by MediFind in the treatment of Marginal Zone Lymphoma (MZL). His top areas of expertise are Swallowing Difficulty, Encopresis, Bowel Incontinence, Endoscopy, and Colonoscopy.

Experienced in Marginal Zone Lymphoma (MZL)
Dr. Karen S. Sable
Gastroenterology
Experienced in Marginal Zone Lymphoma (MZL)
Dr. Karen S. Sable
Gastroenterology
806 Central Ave, Suite 202, 
Highland Park, IL 
 (22.2 miles away)
847-433-9840
Languages Spoken:
English
See accepted insurances

Karen Sable is a Gastroenterologist in Highland Park, Illinois. Dr. Sable is rated as an Experienced provider by MediFind in the treatment of Marginal Zone Lymphoma (MZL). Her top areas of expertise are Marginal Zone Lymphoma (MZL), Barrett Esophagus, Crohn's Disease, and Heartburn.

Experienced in Marginal Zone Lymphoma (MZL)
Dr. Amar Naik
Gastroenterology
Experienced in Marginal Zone Lymphoma (MZL)
Dr. Amar Naik
Gastroenterology

Midwest Digestive Health And Nutrition, PLLC

900 Rand Rd, Suite 120, 
Des Plaines, IL 
 (18.5 miles away)
312-767-3244
Languages Spoken:
English
See accepted insurances
Offers Telehealth

Amar Naik is a Gastroenterologist in Des Plaines, Illinois. Dr. Naik is rated as a Distinguished provider by MediFind in the treatment of Marginal Zone Lymphoma (MZL). His top areas of expertise are Ulcerative Colitis, Crohn's Disease, Viral Gastroenteritis, Endoscopy, and Gastrectomy.

VIEW MORE MARGINAL ZONE LYMPHOMA (MZL) DOCTORS

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

Find Dr. Nealis's expertise for a condition
ConditionClose
      • Advanced
      • Familial Adenomatous Polyposis
        Dr. Nealis is
        Advanced
        . Learn about Familial Adenomatous Polyposis.
        See more Familial Adenomatous Polyposis experts
      • Experienced
      • Achalasia
        Dr. Nealis is
        Experienced
        . Learn about Achalasia.
        See more Achalasia experts
      • Anemia
        Dr. Nealis is
        Experienced
        . Learn about Anemia.
        See more Anemia experts
      • Angiodysplasia of the Colon
        Dr. Nealis is
        Experienced
        . Learn about Angiodysplasia of the Colon.
        See more Angiodysplasia of the Colon experts
      • Attenuated Familial Adenomatous Polyposis
        Dr. Nealis is
        Experienced
        . Learn about Attenuated Familial Adenomatous Polyposis.
        See more Attenuated Familial Adenomatous Polyposis experts
      • Bacterial Gastroenteritis
        Dr. Nealis is
        Experienced
        . Learn about Bacterial Gastroenteritis.
        See more Bacterial Gastroenteritis experts
      • Barrett Esophagus
        Dr. Nealis is
        Experienced
        . Learn about Barrett Esophagus.
        See more Barrett Esophagus experts
      View All 39 Experienced Conditions
      Want to save this doctor for later?
      Sign Up
      Is this your doctor?
      Find A Second Opinion
      Not sure about your diagnosis?
      Check Your Symptoms
       
       
       
       
      Learn about our expert tiers
      Learn More
      Are you the provider on this profile?
      Claim Profile
      For Patients
      • Our Story
      • How MediFind Works
      • Conditions A-Z
      • Doctor Directory
      • Symptoms Directory
      • Procedures Directory
      • Treatment Directory
      • Drug Directory
      • Infusion Center Finder
      • FAQ
      • Contact Us
      For Providers and Practices
      • Claim Your Profile
      • Newsroom
      Business Solutions
      • Provider
      • Network Solutions
      Additional Resources
      • Consumer Health Data Privacy Policy
      • Privacy Policy
      • Terms of Use
      • Advertising Policy
      • Content Policy
      Subscribe to our newsletter

      Sign up to stay informed about MediFind and get wellness sent your way.

      Close

        By subscribing, I agree to MediFind's Terms of Use, Privacy Policy and Consumer Health Data Privacy Policy, as applicable.

        Bullet PinMediFind
        Follow us on
        This information is not intended as a substitute for informed medical advice. You should work with a licensed professional to diagnose and treat health conditions. We let the data speak for itself, MediFind does not endorse any healthcare providers.
        © 2026 All Rights Reserved

        Request an Appointment

        If you are experiencing a medical emergency, call 9-1-1.

        MediFind will contact the provider for your appointment request. You’ll receive status updates by email. Your provider or MediFind will reach out to you directly by phone or email to schedule your appointment or request additional information.

          Close
          0 / 1000

          Please provide us with the below insurance information:

                  By pressing the Submit button you are agreeing to MediFind’s Terms of Use, Privacy Policy and Consumer Health Data Privacy Policy, as applicable.