Summary

Dr. Lawrence Tierney specializes in gastroenterology and internal medicine, bringing 38 years of experience to patient care. He earned his medical degree from the University of Illinois at Chicago College of Medicine and completed his residency at Loyola University Medical Center. Dr. Tierney is fluent in French and Spanish, allowing him to communicate effectively with diverse patient populations.

Dr. Tierney practices at multiple locations throughout the Saint Charles and Saint Peters area in Missouri, with affiliations at SSM Health Saint Joseph Hospital Saint Charles, SSM Health Care, Barnes Jewish Saint Peters Hospital, and Select Specialty Hospital Saint Louis. He specializes in treating digestive conditions such as colon polyps, diverticular disease, and diverticulosis. His expertise includes performing colonoscopies, lower GI endoscopies, and laparoscopic procedures. Patients have given him an average rating of 4.0 on Vitals.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4
  • 38 years of experience
  • speaks French, Spanish
  • Loyola University Medical Center
  • 3 written reviews
  • 2 specialties
  • 11 areas of expertise
  • 5 hospital affiliations
  • 6 office locations
  • Male

Patients’ Perspective

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

Office Locations

Dr. Lawrence Stephen Tierney has 6 locations

Ssm Health Medical Group

400 1st Capitol Dr Ste 201Saint Charles, MO 63301
Mon8:30 am - 5:00 pm
Tue8:30 am - 5:00 pm
Wed8:30 am - 5:00 pm
Thu8:30 am - 5:00 pm
Fri8:30 am - 5:00 pm
SatClosed
SunClosed

Ssm Health Care

100 Medical PlzLake Saint Louis, MO 63367

Ssm Health Saint Joseph Hospital Saint Charles

300 1st Capitol DrSaint Charles, MO 63301

Dr. Lawrence Stephen Tierney

400 1st Capitol DrSaint Charles, MO 63301

Ssm Health Medical Group

400 1st Capitol Dr Ste 301Saint Charles, MO 63301
Mon8:00 am - 4:00 pm
Tue8:00 am - 4:00 pm
Wed8:00 am - 4:00 pm
Thu8:00 am - 4:00 pm
Fri8:00 am - 4:00 pm
SatClosed
SunClosed

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Dr. Lawrence Stephen Tierney, MD
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Dr. Lawrence Stephen Tierney, MDAshley Anderson, APRNRebecca Humphries, APRNShauna Sanderson, APRN
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
38 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks French, Spanish Speaks English Speaks English Speaks English
Saint Charles , MOSacramento , CASacramento , CATallahassee , FL
Med School: University Of Illinois At Chicago College Of Medicine Med School: East Tennessee State University - Quillen College of Medicine Med School: Emory University Med School: Creighton University College of Nursing
Current Profile
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Insurance Plans Accepted by Dr. Lawrence Stephen Tierney

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

Medical Specialties

Dr. Lawrence Stephen Tierney has the following 2 specialties

Specialty Expertise

Dr. Lawrence Stephen Tierney 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

38 Years Experience

Dr. Lawrence Stephen Tierney holds an expired medical license in the state of Missouri.

Medical License

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

Education & Training

Residency

Completed their residency at Loyola University Medical Center.

Medical School

Graduated from University Of Illinois At Chicago College Of Medicine in 1988.

NPI Number

Dr. Tierney's NPI number is 1053440222.

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Frequently Asked Questions

How can I make an appointment with Dr. Lawrence Tierney?
You can find contact information for Dr. Lawrence Tierney here on Vitals.
Where is Dr. Lawrence Tierney's office located?
Dr. Lawrence Tierney's office is located at 400 1st Capitol Dr Ste 201, Saint Charles, MO, 63301.
What languages does Dr. Lawrence Tierney speak?
Dr. Lawrence Tierney speaks French and Spanish.
Is Dr. Lawrence Tierney accepting new patients?
Dr. Lawrence Tierney is accepting new patients on Vitals. View Dr. Lawrence Tierney's profile on Vitals to make an appointment.
Does Dr. Lawrence Tierney accept my insurance?
You can see the insurance plans that Dr. Lawrence Tierney accepts on their Vitals profile.

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