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Samuel Castillo, JR

Dr. Samuel F. Castillo, JR, MD

Accepting New Patients
(773) 614-6594
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Samuel Castillo, JR

Dr. Samuel F. Castillo, JR , MD




  • Board Certified in Gastroenterology
  • In practice more than 15 years
  • Medical Degree: University of Illinois College of Medicine, Rockford IL
  • Residency: Mayo Clinic College of Medicine, Rochester MN
  • Fellowship: Banner Good Samaritan Medical Center, Phoenix, AZ

CGI Chicago Gastroenterology

Welcome to Chicago GI

Highly skilled and experienced gastroenterologist. Compassionate and dedicated. Board certified in Gastroenterology. These are just a few of the reasons who you can count on the Chicago Gastroenterology team to deliver excellent care

and outcomes. When patients with GI and liver problems need specialty care, Dr. Castillo is available to quickly assess patients, manage short or long term care and help them regain their health.

Accessible, efficient, affordable care when you need it.

At Chicago GI, we know that health concerns don’t follow a clock or a calendar. The fact is many medical problems are time sensitive and often urgent which is why we provide not just quality care but also get you in sooner than many of

the area gastroenterology offices in Chicago today.

Why choose to see Dr. Castillo?

  • Provide GI and liver-disease consultations and manage ongoing care
  • Hospital based practice for inpatients of St. Mary and Elizabeth Medical Center
  • Outpatient endoscopy center in Lincoln Park
  • Focus on a holistic approach to healthcare
  • Fluent in English/Spanish
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Takes time to answer my questions
Provides follow-up as needed

Based on patient feedback.


Dr. Castillo, JR's Rating
Patient Perspective
n/a Explains conditions and treatments
4.0 Takes time to answer my questions
4.0 Provides follow-up as needed
Office Rating
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2222 W Division St Ste 235, Chicago, IL, 60622
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Chicago Gastroenterology
2222 W Division St Ste 235
Chicago, IL, 60622


2222 W Division St Ste 235
Chicago, IL, 60622
  • Accepting New Patients
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 - 5:00 pm
  • Accepting New Patients


  • Abdominal Pain
  • Acid Reflux
  • Acute Pancreatitis
  • Barrett’s Esophagus
  • Benign Polyps of the colon
  • Cholelethiasis or Cholecystitis
  • Chronic Pancreatitis
  • Cirrhosis
  • Colon Cancer Screening
  • Constipation
  • Crohn’s disease
  • Diarrhea
  • Diverticulitis
  • Diverticulosis
  • Esophagitis
  • Gastritis and Duodenitis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Hemorrhage
  • H. Pylori Infection
  • Hemorrhoids
  • Hepatic Encephalopathy
  • Hepatitis B
  • Hepatitis C
  • Inflammatory Bowel Disease (IBD)
  • Intestinal Obstruction
  • Irritable Bowel Syndrome (IBS)
  • Liver disease
  • Nausea
  • Peptic Ulcer Disease
  • Ulcerative Colitis
  • Vomiting


  • Upper Endoscopy (EGD)
  • Colonoscopy
  • Sigmoidoscopy
  • ERCP
  • Capsule Endoscopy
  • Therapeutic Endoscopy


  • Gastroentorology


Phoenix VA Health Care System
Banner Good Samaritan Medical Center, Phoenix, AZ
Advanced Endoscopy training including ERCP certification
Mayo Clinic College of Medicine, Rochester MN
Medical School
University of Illinois College of Medicine, Rockford IL


Please verify insurance information directly with your doctor's office as it may change frequently.
  • Blue Cross Blue Shield PPO
  • United Health Care PPO
  • Cigna PPO
  • Humana PPO
  • Aetna PPO
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