Rafael E. Cuellar, MD
Serving North County San Diego

Medicare and most PPO plans are accepted. Contact our qualified team today!

Appointments: (760) 599-1222

About Us



Dr. Rafael E. Cuellar trained and specialized at the University of Pittsburgh in Pennsylvania -UPMC-where he did extensive research in digestive tract bleeding, esophagus infections, esophageal and stomach problems in eating disorders, liver disease and pharmacology. He has published numerous studies along with world renowned gastroenterologists, hepatologists, transplant surgeons and psychiatrists.Dr. Cuellar has a passion for lifestyle modification and empowering patients to do what they can do for themselves: 

  • NUTRITION and 

He is an experienced gastroenterologist treating from the mildest to the very difficult problems of the

Esophagus, stomach, intestines, and liver issues, including:

  • Esophagogastroduodenoscopy
  • Colonoscopy
  • Infrared Destruction of Hemorrhoids
  • Heartburn 
  • Ulcer disease 
  • IBS
  • Chronic Abdominal Pain 
  • Constipation
  • Diarrhea
  • Colitis
  • Blood in Stool, Rectal Bleeding
  • Removal of Colon Polyps 
  • Colon Cancer Detection 

Also specializes Liver Diseases such as:

  • Acute and Chronic Hepatitis
  • Cirrhosis
  • Jaundice

Find out more

News and updates

Proton pump inhibitors no longer linked to dementia -reports in two studies following identical twins published early 2018

Fatty liver improves with increased physical activity and weight loss

Hepatitis C is treatable 


Our patients are our purpose

 Please don't hesitate to write down all your questions so when you see Dr. Cuellar your visit will be more effective -no matter how long is your list, he will do his best to answer them all.

About Us

Compassionate Healthcare


Rafael E. Cuellar, MD -Gastroenterology in Carlsbad - Vista -Oceanside-San Marcos -Encinitas.

Our mission is to provide you with prompt, personalized, high-quality care. We are dedicated to improving and maintaining your health through preventative care and treating acute and chronic diseases of esophagus, stomach, intestines, colon, rectum and liver. 

Experienced Medical Professionals


Rafael E. Cuellar, MD -Gastroenterology offers broad array of services geared to address today’s most common non-emergency illnesses and injuries. We know there is no such thing as one-size-fits-all cure, so we never use a one-size-fits-all approach to your diagnosis. 

A Personal Approach


Our goal is to improve and maintain your overall health and to empower you with an understanding of your condition and wellness plan.  


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Contact Us

The care you deserve.

Please send us a message, or call us for an appointment.

Rafael E Cuellar, MD

2341 South Melrose Drive, Vista, California 92081, United States

(760) 599-1222


Monday - Friday: 8:30am - 5:30 pm

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