Summary

Dr. Gene Chiao treats ulcerative colitis, proctitis, and Crohn's disease, and performs chemotherapy, intravenous chemotherapy, and home infusion therapy. He has practiced gastroenterology and internal medicine for 39 years and speaks both English and Spanish.

Dr. Chiao earned his medical degree from Washington University in St. Louis School of Medicine and completed his residency at McGaw Medical Center. He is affiliated with Highland Park Hospital, Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital, and Advocate Condell Medical Center, and sees patients in Northbrook, Lake Forest, and Libertyville, Illinois. Patients on Vitals rate Dr. Chiao 4.06 out of 5.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.1
  • 39 years of experience
  • speaks English, Spanish
  • Mcgaw Medical Center
  • 6 written reviews
  • 2 specialties
  • 13 areas of expertise
  • 3 hospital affiliations
  • 3 office locations
  • Male

Patients’ Perspective

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

Office Locations

Dr. Gene Zinnan Chiao has 3 locations

Comprehensive Gastrointestinal Health

40 Skokie Blvd Ste 110Northbrook, IL 60062
Mon7:00 am - 6:30 pm
Tue7:00 am - 6:30 pm
Wed7:00 am - 6:30 pm
Thu7:00 am - 6:30 pm
Fri7:00 am - 5:30 pm
SatClosed
SunClosed

Northwestern Medicine Lake Forest Hospital

1000 N Westmoreland RdLake Forest, IL 60045

Advocate Condell Medical Center

801 S Milwaukee AveLibertyville, IL 60048

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Dr. Gene Zinnan Chiao, MD
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Dr. Gene Zinnan Chiao, MDDr. Daksesh Patel, DODr. W. Reid Glaws, DODr. Baseer Qazi, MD
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.1 
4.1 
4.5 
5 
39 Years of Experience 38 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English Speaks English Speaks English
Northbrook , ILChicago , ILLindenhurst , ILGlenview , IL
Med School: Washington University In St Louis School Of Medicine Med School: Lake Erie College of Osteopathic Medicine Med School: New York College of Osteopathic Medicine Med School: Deccan College Medical Sciences
Current Profile
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Insurance Plans Accepted by Dr. Gene Zinnan Chiao

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

Medical Specialties

Dr. Gene Zinnan Chiao has the following 2 specialties

Specialty Expertise

Dr. Gene Zinnan Chiao has the following 13 areas of expertise

  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Check-up
  • Constipation
  • Heartburn
  • Hepatitis C
  • Immunization
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Neurology
  • Physical
  • Ulcerative Colitis
  • Vaccination
  • Weight Loss

Certifications, License, & Education

39 Years Experience

Dr. Gene Zinnan Chiao holds an expired medical license in the state of Illinois.

Medical License

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

Education & Training

Residency

Completed their residency at Mcgaw Medical Center.

Medical School

Graduated from Washington University In St Louis School Of Medicine in 1987.

NPI Number

Dr. Chiao's NPI number is 1699733188.

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Frequently Asked Questions

Where is Dr. Gene Chiao's office located?
Dr. Gene Chiao's office is located at 40 Skokie Blvd Ste 110, Northbrook, IL, 60062.
Does Dr. Gene Chiao accept my insurance?
You can see the insurance plans that Dr. Gene Chiao accepts on their Vitals profile.
Is Dr. Gene Chiao accepting new patients?
Dr. Gene Chiao is accepting new patients on Vitals. View Dr. Gene Chiao's profile on Vitals to make an appointment.
What languages does Dr. Gene Chiao speak?
Dr. Gene Chiao speaks English and Spanish.
How can I make an appointment with Dr. Gene Chiao?
You can find contact information for Dr. Gene Chiao here on Vitals.

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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