Dr. Youssef Assioun
Last updated: Sep 8, 2023

Dr. Youssef Assioun

  • Gender: Male
  • Experience: 18 years
  • Graduation year: 2003
  • Sole propriator: No
  • NPI: 1639370919

Dr. Youssef Assioun MD

Gastroenterologist

He is located at 10012 Kennerly Road Suite 102 in Saint Louis, MO 63128. Can help patients with the following: Colitis, Food Allergies, Heart Disease, Influenza, Intussusception, Nausea and Vomiting. His National Provider Identifier (NPI) number is 1639370919. Appointment can be made via the phone number (314) 543-5911. He is affiliated with 4 practices and 3 hospitals.

Conditions treated

Dr. Youssef Assioun, being an gastroenterologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Youssef Assioun.

  • Abdominal Pain
  • Acute Pain
  • Anemia
  • Arthritis
  • Ascites
  • Asthma
  • Atherosclerosis
  • Autoimmune Hepatitis
  • Bad Breath
  • Barrett's Esophagus
  • Bladder Control
  • Bleeding Varices
  • Blood in Stool
  • Botulism
  • Cancer
  • Carcinoid Tumor
  • Celiac Disease
  • Chest Pain
  • Childhood Obesity
  • Cholecystitis
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Cirrhosis
  • Clostridium Difficile Colitis
  • Colitis
  • Colonoscopy
  • Common Cold
  • Constipation
  • Crohn's Disease
  • Cystitis
  • Diarrhea
  • Diverticulosis
  • Edema
  • Eosinophilic Esophagitis
  • Esophagitis
  • Fatty Liver Disease
  • Feeding and Swallowing
  • Fever
  • Food Allergies
  • Gallbladder Pain
  • Gastric Bypass Surgery
  • Gastritis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastroparesis
  • General Care
  • Headache
  • Heart Disease
  • Heartburn
  • Helicobacter Pylori Infection
  • Hemorrhoids
  • Hepatitis A (HAV)
  • Hepatitis B (HBV)
  • Hepatitis C (HCV)
  • Hiatal Hernia
  • High Blood Pressure
  • Hot Flashes
  • Hyperlipidemia
  • Hyponatremia
  • Indigestion
  • Inflammatory Bowel Disease (IBD)
  • Influenza
  • Inguinal Hernia
  • Internal Bleeding
  • Intussusception
  • Irritable Bowel Syndrome (IBS)
  • Lactose Intolerance
  • Leaky Gut Syndrome
  • Liver Disease
  • Migraine
  • Nausea and Vomiting
  • Obesity
  • Osteoporosis
  • Pancreas Divisum
  • Pancreatic Cancer
  • Pancreatic Cysts
  • Pancreatitis
  • Peptic Ulcer
  • Portal Hypertension
  • Prescription Refill
  • Primary Biliary Cirrhosis (PBC)
  • Primary Sclerosing Cholangitis (PSC)
  • Stomach Cancer
  • Swallowing Disorders
  • Ulcerative Colitis
  • Urethritis
  • Urinary Tract Infection (UTI)

Procedures Performed by Dr. Youssef Assioun

ACA Marketplace (Obamacare/HealthCare.gov) plan networks

Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Youssef Assioun as in-network for the following 2026 plans.

Health plans

Anthem Blue Cross and Blue Shield

Network data as of Mar 26, 2026, as reported by the insurer.

Show all 10 plans from Anthem Blue Cross and Blue Shield
Anthem Blue Cross and Blue Shield plans
Plan Plan type Network tier New patients
Anthem Bronze Pathway 10150 ($0 Virtual PCP + $0 Select Drugs + Incentives) EPO · Bronze Participating Accepting new patients at some locations
Anthem Bronze Pathway 6900 ($0 Virtual PCP + $0 Select Drugs + Incentives) EPO · Expanded Bronze Participating Accepting new patients at some locations
Anthem Bronze Pathway 7500 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) EPO · Expanded Bronze Participating Accepting new patients at some locations
Anthem Catastrophic Pathway (+ Incentives) EPO · Catastrophic Participating Accepting new patients at some locations
Anthem Gold Pathway 2000 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) EPO · Gold Participating Accepting new patients at some locations
Anthem Heart Healthy Bronze Pathway 4900 ($0 Virtual PCP + $0 Select Drugs + Incentives) EPO · Expanded Bronze Participating Accepting new patients at some locations
Anthem Heart Healthy Silver Pathway 3100 ($0 Virtual PCP + $0 Select Drugs + Incentives) EPO · Silver Participating Accepting new patients at some locations
Anthem Silver Pathway 5350 ($0 Virtual PCP + $0 Select Drugs + Incentives) EPO · Silver Participating Accepting new patients at some locations
Anthem Silver Pathway 6000 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) EPO · Silver Participating Accepting new patients at some locations
Anthem Silver Pathway 7200 ($0 Virtual PCP + $0 Select Drugs + Incentives) EPO · Silver Participating Accepting new patients at some locations

Medica

Network data as of Jul 13, 2026, as reported by the insurer.

Show all 9 plans from Medica
Medica plans
Plan Plan type Network tier New patients
Balance by Medica Bronze $0 Copay PCP Visits EPO · Expanded Bronze Preferred Accepting new patients
Balance by Medica Bronze Premier EPO · Expanded Bronze Preferred Accepting new patients
Balance by Medica Expanded Bronze Standard EPO · Expanded Bronze Preferred Accepting new patients
Balance by Medica Gold $0 Copay PCP Visits EPO · Gold Preferred Accepting new patients
Balance by Medica Gold Share EPO · Gold Preferred Accepting new patients
Balance by Medica Gold Standard EPO · Gold Preferred Accepting new patients
Balance by Medica Silver $0 Copay PCP Visits EPO · Silver Preferred Accepting new patients
Balance by Medica Silver Share EPO · Silver Preferred Accepting new patients
Balance by Medica Silver Standard EPO · Silver Preferred Accepting new patients

UnitedHealthcare

Network data as of Sep 15, 2026, as reported by the insurer.

Show all 13 plans from UnitedHealthcare
UnitedHealthcare plans
Plan Plan type Network tier New patients
UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) EPO · Expanded Bronze Non Preferred Accepting new patients
UHC Bronze Essential (No Referrals) EPO · Bronze Non Preferred Accepting new patients
UHC Bronze Standard (No Referrals) EPO · Expanded Bronze Non Preferred Accepting new patients
UHC Bronze Standard+ (Dental + Vision, No Referrals) EPO · Expanded Bronze Non Preferred Accepting new patients
UHC Gold Advantage ($0 Virtual Urgent Care, No Referrals) EPO · Gold Non Preferred Accepting new patients
UHC Gold Advantage+ ($0 Virtual Urgent Care, Dental + Vision, No Referrals) EPO · Gold Non Preferred Accepting new patients
UHC Gold Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, $8 Tier 2 Rx, No Referrals) EPO · Gold Non Preferred Accepting new patients
UHC Gold Standard (No Referrals) EPO · Gold Non Preferred Accepting new patients
UHC Silver Advantage ($0 Virtual Urgent Care, No Referrals) EPO · Silver Non Preferred Accepting new patients
UHC Silver Advantage+ ($0 Virtual Urgent Care, Dental + Vision, No Referrals) EPO · Silver Non Preferred Accepting new patients
UHC Silver Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) EPO · Silver Non Preferred Accepting new patients
UHC Silver Standard (No Referrals) EPO · Silver Non Preferred Accepting new patients
UHC Silver Standard+ (Dental + Vision, No Referrals) EPO · Silver Non Preferred Accepting new patients

This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Youssef Assioun is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.

Insurance information looks wrong? Let us know

Medicare Enrollment

Dr. Youssef Assioun is enrolled to bill Medicare as a Practitioner - Gastroenterology .

Bills through: Mercy Clinic Gastroenterology Llc

Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.

Payments received

Drug payment

AbbVie $976
Gilead Sciences $531
Allergan $243

Other

Food and Beverage $3147

Studies

Graduated in 2003

Additional Specialities

  • Internist
  • Resident

Affiliated practices

Mercy Clinic Gastroenterology
621 South New Ballas Road
St. Louis, 63141 MO
(314) 251-3880
Modern Urology
1400 US Highway 61
Festus, 63028 MO
(636) 933-5337
Rouba Ghoussoub MD
1400 US Highway 61
Festus, 63028 MO
(636) 931-7770
Edwardo D Verzola MD
1004 Herculaneum Industrial Drive
Herculaneum, 63048 MO
(636) 937-8675

Affiliated hospitals

ST ANTHONY'S MEDICAL CENTER
10010 KENNERLY ROAD
SAINT LOUIS, 63128 MO
(314) 525-1000
MERCY HOSPITAL ST LOUIS
615 NEW BALLAS ROAD
SAINT LOUIS, 63141 MO
(314) 569-6000
MERCY HOSPITAL JEFFERSON
1400 US HIGHWAY 61
FESTUS, 63028 MO
(636) 933-1000

Looking for more Gastroenterologists?

Out of the 10 gastroenterologists in this region, here are 10 randomly selected ones for you to explore.

Dr. Sanjay Bhat
  • Gender: Male
  • Address: 167 Lamp And Lantern Vlg Suite 292 Chesterfield, 63017, MO
Dr. Khalid Naseer
  • Gender: Male
  • Address: 2 Saint Anthonys Way Suite 105 Alton, 62002, IL
Dr. Timothy Tobin Brady
  • Gender: Male
  • Address: Ste 101 10012 Kennerly Road St Louis, 63128, MO
Dr. Twan Phanijphand
  • Gender: Male
  • Address: 1326 Lewis Turner Boulevard Fort Walton Beach, 32547, FL
Dr. David J. Costigan
  • Gender: Male
  • Address: 10007 Kennerly Road Saint Louis, 63128, MO
Dr. Samer Alkaade
  • Gender: Male
  • Address: 10012 Kennerly Road Suite 404 Saint Louis, 63128, MO
Dr. Sajidul H. Ansari
  • Gender: Male
  • Address: 3555 Sunset Office Drive Suite 107 Saint Louis, 63127, MO
Dr. Yazan A. Abdalla
  • Gender: Male
  • Address: Suite 404 10012 Kennerly Road Saint Louis, 63128, MO
Dr. James W. Dimitroff
  • Gender: Male
  • Address: 70 Jungermann Circle Suite 201 Saint Peters, 63376, MO
Dr. Michael Edward Presti
  • Gender: Male
  • Address: Suite 404 10012 Kennerly Road Saint Louis, 63128, MO

Questions & Answers

Where can you meet with Dr. Youssef Assioun?

Dr. Youssef Assioun's office is located at 10012 Kennerly Road Suite 102 in Saint Louis, MO 63128.

What conditions does Dr. Youssef Assioun treat?

Dr. Youssef Assioun provides treatment for Colitis, Food Allergies, Heart Disease, Influenza, Intussusception, Nausea and Vomiting. For the full list see this list.

Has Dr. Youssef Assioun affiliation with hospitals?

Dr. Youssef Assioun is affiliated with ST ANTHONY'S MEDICAL CENTER. For the full list of hospitals see this list.

Does Dr. Youssef Assioun have affiliation with practices?

Dr. Youssef Assioun is affiliated with Mercy Clinic Gastroenterology. For the full list of practices see this list.

Does Dr. Youssef Assioun accept patients with Medica?

Yes, Dr. Youssef Assioun is listed in-network for Medica through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.