Summary

Dr. Lawrence Tierney is a gastroenterologist and internal medicine physician who earned his medical degree from the University of Illinois at Chicago College of Medicine. He completed his residency training at Loyola University Medical Center and brings 38 years of clinical experience to his practice. Dr. Tierney is fluent in Spanish and French, enabling him to serve a diverse patient population.

Dr. Tierney practices at multiple locations throughout Saint Charles, Saint Peters, and Lake Saint Louis, 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 focuses on treating conditions such as colon polyps and high blood pressure, including pediatric cases. His expertise includes performing specialized procedures like kidney transplant biopsies and nerve biopsies. 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 Spanish, French
  • Loyola University Medical Center
  • 3 written reviews
  • 2 specialties
  • 11 areas of expertise
  • 2 board certifications
  • 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, MDRebecca Humphries, APRNShauna Sanderson, APRNAshley Anderson, 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 Spanish, French Speaks English Speaks English Speaks English
Saint Charles , MOSACRAMENTO , CATallahassee , FLSACRAMENTO , CA
Med School: University Of Illinois At Chicago College Of Medicine Med School: Emory University Med School: Creighton University College of Nursing Med School: East Tennessee State University - Quillen College of Medicine
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

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.
Which hospitals is Dr. Lawrence Tierney affiliated with?
Dr. Lawrence Tierney is affiliated with Ssm Health Saint Joseph Hospital Saint Charles, Ssm Health Care, Barnes Jewish Saint Peters Hospital, Select Specialty Hospital Saint Louis, and Barnes Jewish Saint Peters Hospital.
How can I make an appointment with Dr. Lawrence Tierney?
You can find contact information for Dr. Lawrence Tierney here on Vitals.
What languages does Dr. Lawrence Tierney speak?
Dr. Lawrence Tierney speaks Spanish and French.

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