Summary

Dr. Dennis Zai is a gastroenterologist and internal medicine specialist with over five decades of medical practice. He earned his medical degree from the University of Illinois at Chicago College of Medicine and completed his residency training at Illinois Masonic Medical Center. With 53 years of clinical experience, Dr. Zai brings extensive knowledge to the diagnosis and treatment of digestive system disorders and comprehensive internal medicine care.

Dr. Zai practices at multiple locations throughout the East Bay, including Walnut Creek and Antioch. He is affiliated with Sutter Delta Medical Center and sees patients at Walnut Creek Medical Center and Bass Medical Group. His clinical expertise includes managing complex spinal conditions such as spondylolisthesis and performing diagnostic spinal X-rays when needed for patient care. Patients have given him an average rating of 3.7 on Vitals.

Overview based on verified provider data

Quick Facts

  • 3.7
  • 53 years of experience
  • Illinois Masonic Medical Center
  • 1 written review
  • 2 specialties
  • 11 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 3 office locations
  • Male

Office Locations

Dr. Dennis Y H Zai has 3 locations

Walnut Creek Medical Center

1601 Ygnacio Valley RdWalnut Creek, CA 94598

Bass Medical Group

3903 Lone Tree Way Ste 205Antioch, CA 94509

Sutter Delta Medical Center

3901 Lone Tree WayAntioch, CA 94509

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Dr. Dennis Y H Zai, MDRachel Oliver, APRNJi Soo Choi, APRNJan Seiler, APRN
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients
3.7 
53 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English Speaks English
Walnut Creek , CASACRAMENTO , CASACRAMENTO , CAMontgomery , AL
Med School: University Of Illinois At Chicago College Of Medicine Med School: University of South Alabama Med School: New York University Med School: Georgia State University
Current Profile
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Insurance Plans Accepted by Dr. Dennis Y H Zai

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

Medical Specialties

Dr. Dennis Y H Zai has the following 2 specialties

Specialty Expertise

Dr. Dennis Y H Zai 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

53 Years Experience

Education & Training

Residency

Completed their residency at Illinois Masonic Medical Center.

Medical School

Graduated from University Of Illinois At Chicago College Of Medicine in 1973.

NPI Number

Dr. Zai's NPI number is 1740253350.

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Frequently Asked Questions

Is Dr. Dennis Zai accepting new patients?
Dr. Dennis Zai has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. Dennis Zai accept virtual/telehealth appointments?
Dr. Dennis Zai has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. Dennis Zai?
You can find contact information for Dr. Dennis Zai here on Vitals.
Does Dr. Dennis Zai accept my insurance?
You can see the insurance plans that Dr. Dennis Zai accepts on their Vitals profile.
Which hospitals is Dr. Dennis Zai affiliated with?
Dr. Dennis Zai is affiliated with Sutter Delta Medical Center.

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