Summary

Dr. John Tasiopoulos treats colon polyps, hemorrhoids, and diverticular disease, and performs lower GI endoscopy, colonoscopy, and upper GI endoscopy. He practices gastroenterology and internal medicine and has 35 years of experience, with an affiliation at Advocate Condell Medical Center.

He completed his residency at Advocate Lutheran General Hospital and trained at Midwestern University-Chicago College of Osteopathic Medicine. Dr. Tasiopoulos sees patients in Libertyville and Gurnee, Illinois, and speaks English, Polish, Russian, and Spanish. Patients on Vitals rate Dr. Tasiopoulos 4.78 out of 5.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.8
  • 35 years of experience
  • speaks English, Polish, Russian, Spanish
  • Advocate Lutheran General Hospital
  • 7 written reviews
  • 2 specialties
  • 15 areas of expertise
  • 1 hospital affiliation
  • 3 office locations
  • Male

Patients’ Perspective

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

Office Locations

Dr. John Nicholas Tasiopoulos has 3 locations

Nsg

1880 W Winchester Rd Ste 201Libertyville, IL 60048
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 4:00 pm
SatClosed
SunClosed

Advocate Condell Medical Center

801 S Milwaukee AveLibertyville, IL 60048

Gi Partners Of Illinois Llc

731 S Il Route 21 # 150Gurnee, IL 60031
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
Sat8:00 am - 12:00 pm
SunClosed

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Dr. John Nicholas Tasiopoulos, DO
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Dr. John Nicholas Tasiopoulos, DODr. Manoj K Mehta, MDDr. Amit Kalra, MDDr. W. Reid Glaws, DO
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.8 
4.9 
4.5 
4.5 
35 Years of Experience 35 Years of Experience 38 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Polish, Russian, Spanish Speaks English Speaks English Speaks English
Libertyville , ILEvanston , ILHighland Park , ILLindenhurst , IL
Med School: Midwestern University-Chicago College Of Osteopathic Medicine Med School: Rush Medical College Of Rush University Medical Center Med School: University of Illinois Med School: New York College of Osteopathic Medicine
Current Profile
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Insurance Plans Accepted by Dr. John Nicholas Tasiopoulos

  • Accepts Medicare

Medical Specialties

Dr. John Nicholas Tasiopoulos has the following 2 specialties

Specialty Expertise

Dr. John Nicholas Tasiopoulos has the following 15 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Barrett Esophagus
  • Celiac Disease
  • Colonic Polyps
  • Colonoscopy
  • Constipation
  • Heartburn
  • Hemorrhoids
  • Hepatitis C
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Swallowing disorder (Deglutition Disorder)
  • Ulcerative Colitis

Certifications, License, & Education

35 Years Experience

Dr. John Nicholas Tasiopoulos holds an expired medical license in the state of Illinois.

Medical License

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

Education & Training

Residency

Completed their residency at Advocate Lutheran General Hospital.

Medical School

Graduated from Midwestern University-Chicago College Of Osteopathic Medicine in 1991.

NPI Number

Dr. Tasiopoulos' NPI number is 1346384492.

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Frequently Asked Questions

How can I make an appointment with Dr. John Tasiopoulos?
You can find contact information for Dr. John Tasiopoulos here on Vitals.
What languages does Dr. John Tasiopoulos speak?
Dr. John Tasiopoulos speaks English, Polish, Russian, and Spanish.
Is Dr. John Tasiopoulos accepting new patients?
Dr. John Tasiopoulos is accepting new patients on Vitals. View Dr. John Tasiopoulos's profile on Vitals to make an appointment.
Where is Dr. John Tasiopoulos's office located?
Dr. John Tasiopoulos's office is located at 1880 W Winchester Rd Ste 201, Libertyville, IL, 60048.
Does Dr. John Tasiopoulos accept virtual/telehealth appointments?
Dr. John Tasiopoulos has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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