Summary

Dr. Thomas Oconnor is a gastroenterologist who has dedicated over three decades to digestive health care. He earned his medical degree from Northwestern University Feinberg School of Medicine and completed his residency at University of Iowa Hospitals & Clinics. With 36 years of experience treating patients with gastrointestinal conditions, Dr. Oconnor brings extensive knowledge to his practice. He is fluent in both English and Spanish, allowing him to serve a diverse patient population.

Dr. Oconnor practices at multiple locations in Illinois, including Bourbonnais and New Lenox, and maintains affiliations with Saint Marys Hospital in Kankakee, Riverside Medical Center, and Silver Cross Hospital. He specializes in treating conditions such as colon polyps, GERD, and acid reflux. His expertise includes performing lower GI endoscopy and colonoscopy procedures. Patients have given him an average rating of 4.4 out of 5, reflecting their confidence in his care.

AI-generated from data on this provider profile.

Quick Facts

  • accepting new patients
  • 4.4
  • 36 years of experience
  • speaks English, Spanish
  • University Of Iowa Hospitals & Clinics
  • 1 written review
  • 1 specialty
  • 10 areas of expertise
  • 1 board certification
  • 3 hospital affiliations
  • 8 office locations
  • Male

Office Locations

Dr. Thomas Lawrence Oconnor has 8 locations

Digestive Diseases Consultants Of Kankakee Sc

1615 N Convent St Ste 1Bourbonnais, IL 60914
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 - 3:00 pm
SatClosed
SunClosed

Digestive Diseases Consultants Of Kankakee Sc

1615 N Convent St Ste 2Bourbonnais, IL 60914
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 - 3:00 pm
SatClosed
SunClosed

Digestive Diseases Consultants

1890 Silver Cross Blvd Ste 215New Lenox, IL 60451

Digestive Diseases Consultants

1890 Silver Cross Blvd Ste 225New Lenox, IL 60451
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 3:00 pm
SatClosed
SunClosed

Silver Cross Hospital

1900 Silver Cross BlvdNew Lenox, IL 60451

Ascension Saint Mary Kankakee

500 W Court StKankakee, IL 60901

Riverside Medical Center

350 N Wall StKankakee, IL 60901

Digestive Diseases Consultants Of Kankakee Sc

1890 Silver Cross Blvd Ste 225New Lenox, IL 60451
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 - 3:00 pm
SatClosed
SunClosed

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Dr. Thomas Lawrence Oconnor, MDJi Soo Choi, APRNJan Seiler, APRNDr. Suriya Visvabharathy Sastri, MD
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients
4.4 
36 Years of Experience 48 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available No Virtual Visit Option
Speaks English, Spanish Speaks English Speaks English Speaks Spanish, Arabic, English
Bourbonnais , ILSACRAMENTO , CAMontgomery , ALOlympia Fields , IL
Med School: Northwestern University Feinberg School Of Medicine Med School: New York University Med School: Georgia State University Med School: Madras Medical College
Current Profile
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Insurance Plans Accepted by Dr. Thomas Lawrence Oconnor

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Thomas Lawrence Oconnor has the following specialty

Specialty Expertise

Dr. Thomas Lawrence Oconnor has the following 10 areas of expertise

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

Certifications, License, & Education

36 Years Experience

MEDICAL LICENSE

Medical Doctor, Illinois, 2026, Active

EDUCATION & TRAINING

Residency

University Of Iowa Hospitals & Clinics

Medical School

Northwestern University Feinberg School Of MedicineGraduated in 1990

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Frequently Asked Questions

Which hospitals is Dr. Thomas Oconnor affiliated with?
Dr. Thomas Oconnor is affiliated with Saint Marys Hospital In Kankakee, RIVERSIDE MEDICAL CENTER, and Silver Cross Hospital.
Is Dr. Thomas Oconnor accepting new patients?
Dr. Thomas Oconnor is accepting new patients on Vitals. View Dr. Thomas Oconnor's profile on Vitals to make an appointment.
Does Dr. Thomas Oconnor accept virtual/telehealth appointments?
Dr. Thomas Oconnor has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
What languages does Dr. Thomas Oconnor speak?
Dr. Thomas Oconnor speaks English and Spanish.
Does Dr. Thomas Oconnor accept my insurance?
You can see the insurance plans that Dr. Thomas Oconnor accepts on their Vitals profile.

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