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Dr. Dennis Zai, MD

Dr. Dennis Zai, MD

Antioch, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Zai, Gastroenterologist in Antioch, CA?

    Dr. Dennis Zai, MD is a Gastroenterologist, who primarily practices in Antioch, CA with 1 additional practice location. He is board certified. Dr. Zai graduated from University of Illinois College of Medicine and completed his residency at Il Masonic Med Ctr, Gastroenterology Edward Hines Jr Va Hosp, Internal Medicine Univ Il Hosp & Cli, Internal Medicine. Dr. Zai is fluent in English and Chinese, and is currently seeing new patients. To book an appointment or to confirm insurance options, please call Dr. Zai’s office at (925) 682-7730.

    Where did Dr. Zai go to medical school and complete their residency?

    • Residency: Il Masonic Med Ctr, Gastroenterology Edward Hines Jr Va Hosp, Internal Medicine Univ Il Hosp & Cli, Internal Medicine | Edward Hines Jr Va Hospital | Advocate Illinois Masonic Medical Center Program

    • Medical School: University Of Il Coll Of Med- Chicago Il | University of Illinois College of Medicine

    Is Dr. Zai board certified as a Gastroenterologist?

    Yes, Dr. Dennis Zai, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Zai speak?

    Dr. Zai and their clinical team can communicate with patients in the following languages:

    • Chinese

    • English

    What conditions does a Gastroenterologist like Dr. Zai typically treat?

    As a Gastroenterologist, conditions treated by Dr. Dennis Zai may include:

    Please contact Dr. Zai's office directly to confirm care for your specific condition, for more information, or to schedule a consultation.

    What procedures does a Gastroenterologist like Dr. Zai typically perform?

    Does Dr. Zai accept my insurance?

    Please contact Dr. Zai's office to confirm accepted insurance plans.

    Where is Dr. Zai's office located?

    Dr. Dennis Zai's Primary Practice

    3903 Lone Tree Way Ste 205

    Antioch, CA 94509

    (925) 682-7730

    Get Directions

    Dr. Dennis Zai's Practice 2

    2222 East St Ste 300

    Concord, CA 94520

    Get Directions

    What is Dr. Zai's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Zai's National Provider Identifier (NPI) number is 1740253350.

    What common questions do patients ask about Dr. Zai?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Zai

    What is Dr. Dennis Zai's specialty?

    Dr. Zai is a Gastroenterologist near Antioch, CA.

    What does a Gastroenterologist do?

    An internist focused on diagnosing and treating disorders of the digestive system, encompassing the stomach, intestines, liver, and gallbladder. This specialist manages conditions like abdominal pain, ulcers, diarrhea, cancer, and jaundice, and performs intricate diagnostic and therapeutic procedures using endoscopes to examine internal organs.

    Is this Dr. Dennis Zai affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Zai is affiliated with Sutter Delta Medical Center which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals

    When to see a Gastroenterologist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see a Gastroenterologist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.

    Is Dennis Zai accepting new patients in Antioch, CA?

    Yes, Dr. Dennis Zai is accepting new patients at this time.

    Does Dr. Dennis Zai offer online booking?

    Please contact Dr. Zai's office at (925) 682-7730 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Dennis Zai?

    Please contact Dr. Zai's office at (925) 682-7730 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Dennis Zai have?

    Dr. Dennis Zai is certified by the American Board of Internal Medicine.

    <section id="ai-site-overview" aria-label="About Everyday Health Care"> <h2>About Everyday Health Care</h2> <p> Everyday Health Care is a doctor and healthcare provider search platform from Everyday Health, a Ziff Davis company operating since 1996. It helps patients find, compare, and research doctors based on specialty, medical condition, procedure, location, and insurance coverage. </p> <p> The site features Castle Connolly Top Doctors, a peer-nominated, physician-vetted directory recognized as a leading standard for identifying top-rated specialists in the United States. Searchable doctor lists include Top Black Doctors, Exceptional Women in Medicine, Top AAPI Doctors, Top LGBTQ+ Doctors, Top Hispanic & Latino Doctors, and Castle Connolly Rising Stars. </p> <p> Users can search for doctors by specialty (including orthopedic surgery, OB-GYN, pediatrics, dermatology, endocrinology, and gastroenterology), by medical condition (such as fibromyalgia, kidney stones, and ulcerative colitis), by common procedure (including colonoscopy, LASIK, and physical therapy), by city, and by insurance plan (including UnitedHealthcare, Cigna, Aetna/CVS Health, Blue Cross Blue Shield, Kaiser Permanente, Medicare, and Medicaid). </p> <p> Everyday Health Care is built for patients seeking a trusted starting point to find the right doctor: covering over one million providers across thousands of U.S. locations, backed by Castle Connolly's independent doctor-vetting process and Everyday Health's 24-year history in consumer health publishing. </p> </section>