Summary

Dr. Hari Diwakaran treats IBD (inflammatory bowel disease) and has practiced gastroenterology and internal medicine for 38 years. He is affiliated with SSM Saint Joseph Health Center in Wentzville.

Dr. Diwakaran completed his residency at St. Louis University School of Medicine and sees patients in Saint Charles, Missouri. He speaks French and Spanish. Patients on Vitals rate Dr. Diwakaran 4.83 out of 5.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.8
  • 38 years of experience
  • 44 insurance plans accepted
  • speaks French, Spanish
  • St Louis University School Of Medicine
  • 4 written reviews
  • 3 specialties
  • 12 areas of expertise
  • 1 hospital affiliation
  • 1 office location
  • Male

Patients’ Perspective

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

Office Location

Hari Diwakaran

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

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Hari Diwakaran, MDRebecca Humphries, APRNAshley Anderson, APRNShauna Sanderson, APRN
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.8 
0 
0 
0 
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: Madras Medical College Med School: Emory University Med School: East Tennessee State University - Quillen College of Medicine Med School: Creighton University College of Nursing
Current Profile
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Insurance Plans Accepted by Hari Diwakaran

  • Aetna
  • Aetna - Medicare
  • Aetna Better Health
  • Anthem Blue Cross
  • Anthem Blue Cross - Federal Employees Program
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Illinois
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Rhode Island
  • Blue Cross Blue Shield of Tennessee
  • CHAMPVA
  • Cigna
  • Cigna-HealthSpring
  • Dean Health Plan
  • Dean Health Plan - HMO
  • Devoted Health
  • ESSENCE Healthcare
  • ESSENCE Healthcare - HMO
  • First Health (Coventry Health Care)
  • Golden Rule
  • Healthlink
  • Healthlink - PPO
  • Humana
  • Medica
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medical Mutual
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Meritain Health
  • Meritain Health - HMO
  • Mutual of Omaha
  • Oscar Health Insurance
  • Provider Partners Health Plan
  • Sana
  • STLDentalPlan| LLC
  • Transamerica
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - Medicare
  • UnitedHealthOne
  • Wellcare

Medical Specialties

Hari Diwakaran has the following 3 specialties

Specialty Expertise

Hari Diwakaran has the following 12 areas of expertise

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

Certifications, License, & Education

38 Years Experience

Hari Diwakaran 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 St Louis University School Of Medicine.

Medical School

Graduated from Madras Medical College in 1988.

NPI Number

Hari Diwakaran's NPI number is 1285694703.

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Frequently Asked Questions

How can I make an appointment with Hari Diwakaran?
You can find contact information for Hari Diwakaran here on Vitals.
Which hospitals is Hari Diwakaran affiliated with?
Hari Diwakaran is affiliated with Ssm Saint Joseph Health Center Wentzville.
Is Hari Diwakaran accepting new patients?
Hari Diwakaran is accepting new patients on Vitals. View Hari Diwakaran's profile on Vitals to make an appointment.
Does Hari Diwakaran accept virtual/telehealth appointments?
Hari Diwakaran has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
What languages does Hari Diwakaran speak?
Hari Diwakaran speaks French and Spanish.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

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