
Dr. John Ryan, MD
Gastroenterologist
8530 W Sunset Road, Suite 230, Las Vegas, NV 89113
At a glance
Accepts 42 insurances
American Republic Insurance Company, Anthem Blue Cross Blue Shield, BlueCross BlueShield, Cigna, UnitedHealthcare, more+ ·
Has 20+ years of experience
Graduated from University of South Carolina, Columbia, Doctor of Medicine
Works at Comprehensive Digestive Institute of Nevada
Speaks English
Office location
Comprehensive Digestive Institute of Nevada
8530 W Sunset Road, Suite 230, Las Vegas, NV, 89113
John Ryan does not participate in Zocdoc to offer online booking at this time
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In-network insurances
BlueCross BlueShield
Cigna
UnitedHealthcare
BlueCross BlueShield
Cigna
UnitedHealthcare
Areas of expertise
This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Upper GI endoscopy
Colonoscopy
Gastroenteritis
Acute hemorrhoids
Acute gastrointestinal bleeding
Acid reflux
Upper GI endoscopy
Colonoscopy
Gastroenteritis
Acute hemorrhoids
More about Dr. John Ryan, MD
Dr. Ryan is a Board-Certified Gastroenterologist specializing in the treatment of intestinal and liver diseases. He has a unique background that has allowed him to develop a broad array of interests in general gastroenterology, including therapeutic endoscopy.
Dr. Ryan obtained a degree in biology at Stanford University, followed by a medical degree from the University of South Carolina School of Medicine. Following his Internal Medicine residency, he completed his gastroenterology training at the University of North Carolina at Chapel Hill. His training afforded him the opportunity to spend a year as an AASLD Liver Fellow.
He went on to serve as assistant director of hepatology and liver transplantation at Cedars-Sinai Medical Center in Los Angeles, and subsequently as director of hepatology at the University of Nevada. In the latter role, he was instrumental in starting the gastroenterology training program there. He continues to take an active role in the education of medical students and residents. He also continues to publish research. One of his particular interests is maximizing the safety of colon cancer screening.
In 2015, having noted a need for high quality specialty care in Nevada, Dr. Ryan and his partners established CDIN. At CDIN he is involved in the care of patients with a variety of gastrointestinal issues and he performs the full array of endoscopic procedures. He focuses on his passion, which is general gastroenterology.
He is currently licensed to practice in Nevada, California and Arizona, and holds staff appointments at hospitals in multiple states. He is also a founding partner of CDIN. Dr. Ryan maintains ABIM certification in gastroenterology.
Education & experience
Education
Medical School - University of South Carolina, Columbia, Doctor of Medicine
Stanford University (Bachelor’s)
Baystate Medical Center, Internship in Internal Medicine
Baystate Medical Center, Residency in Internal Medicine
Loyola University Medical Center, Fellowship in Gastroenterology
University of North Carolina, Fellowship in Hepatology
Practice
Comprehensive Digestive Institute of Nevada
Certifications
Gastroenterology (Internal Medicine)
Background
Languages spoken
English
Gender
Male
NPI number
#1073695698
John Ryan does not participate in Zocdoc to offer online booking at this time
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Top-rated
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Julie Gidvani, APRN, RN
Nurse Practitioner
4.7818 reviews
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Calida Tam, PA
Physician Assistant
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2 mi5915 S Rainbow Blvd, suite 100, Las Vegas, NV, 89118
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2 mi5915 S Rainbow Blvd, suite 100, Las Vegas, NV, 89118
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Jennifer Cortes-Klein, APRN, FNP-BC
Family Nurse Practitioner
Las Vegas, NV, 89146
Next available: Apr 7Offers telehealth
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Dr. Yvonne Barry, MD
Primary Care Doctor
4.6554 reviews
Las Vegas, NV, 89118
Next available: May 6Offers telehealth
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Las Vegas, NV, 89118
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Dr. Yvonne Barry, MD
Primary Care Doctor
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2 mi5915 S Rainbow Blvd, suite 100, Las Vegas, NV, 89118
Next available: May 6Offers telehealth
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What practice does Dr. John Ryan work with?
Dr. John Ryan works with Comprehensive Digestive Institute of Nevada.
Where is Dr. John Ryan's office located?
Dr. John Ryan's office is located at 8530 W Sunset Road, Las Vegas, NV 89113.
Which board certifications does Dr. John Ryan have?
Dr. John Ryan is certified by Gastroenterology (Internal Medicine).
What are common reasons for patients to see Dr. John Ryan?
Dr. John Ryan frequently sees patients for Acid Reflux / Heartburn, Colon Cancer Screening, Colonoscopy, Diarrhea, and Gastroenterology Consultation. You can see other visit reasons for Dr. John Ryan on their profile.
What languages does Dr. John Ryan speak?
Dr. John Ryan speaks English.