The 20 Best Gastroesophageal Reflux Disease (GERD) Doctors Near Me in Ontario, CA

Find the Top Gastroesophageal Reflux Disease (GERD) Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 314 doctor with experience in Gastroesophageal Reflux Disease (GERD) near Ontario, CA. Of these, 291 are Experienced, 18 are Advanced, 4 are Distinguished and 1 are Elite.

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314 providers found
    Elite in Gastroesophageal Reflux Disease (GERD)
    Elite in Gastroesophageal Reflux Disease (GERD)
    15855 Pomona Rincon Road, 
    Chino Hills, CA 
     (8.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Nikolai Bildzukewicz is a General Surgeon practicing medicine in Chino Hills, California. Dr. Bildzukewicz is rated as an Elite provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Hiatal Hernia, Hernia, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Gastrectomy. Dr. Bildzukewicz is currently accepting new patients.

    Distinguished in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    Distinguished in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology

    Basim Z. Abdelkarim, M.D., Inc.

    1310 San Bernardino Rd, 
    Upland, CA 
     (2.7 miles away)
    Experience:
    27+ years
    Languages Spoken:
    English
    Offers Telehealth

    Basim Abdelkarim is a Gastroenterologist practicing medicine in Upland, California. He has been practicing medicine for over 27 years. Dr. Abdelkarim is rated as a Distinguished provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). He is also highly rated in 67 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Hemorrhoids, Gastroesophageal Reflux Disease (GERD), Gastrostomy, and Endoscopy. Dr. Abdelkarim is board certified in American Board Of Internal Medicine.

    Distinguished in Gastroesophageal Reflux Disease (GERD)
    Internal Medicine
    Distinguished in Gastroesophageal Reflux Disease (GERD)
    Internal Medicine

    Office

    5475 Walnut Ave Ste H, 
    Chino, CA 
     (4.6 miles away)
    Languages Spoken:
    English

    Sudhir Reddy is an Internal Medicine provider practicing medicine in Chino, California. Dr. Reddy is rated as a Distinguished provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). He is also highly rated in 32 other conditions, according to our data. His clinical expertise encompasses Irritable Bowel Syndrome (IBS), Gastroesophageal Reflux Disease (GERD), Hemorrhoids, Gastrostomy, and Endoscopy.

    Learn about our expert tiers
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine

    Chino Hills Family Medical Group

    15361 Central Avenue, 
    Chino, CA 
     (4.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Cynthia Moreno is a primary care provider, practicing in Family Medicine in Chino, California. Dr. Moreno is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). She is also highly rated in 10 other conditions, according to our data. Her clinical expertise encompasses Empyema, Sinusitis, Cellulitis, and Vertigo.

    Advanced in Gastroesophageal Reflux Disease (GERD)
    General Surgery
    Advanced in Gastroesophageal Reflux Disease (GERD)
    General Surgery

    Healthpointe Medical Group Inc.

    754 N Mountain Ave, 
    Ontario, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Stewart Rendon is a General Surgeon practicing medicine in Ontario, California. Dr. Rendon is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Hiatal Hernia, Congenital Diaphragmatic Hernia, Obesity, Sleeve Gastrectomy, and Gastrectomy.

    Advanced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine
    Advanced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine

    Ravinder Singh, Md, Inc.

    525 N 13th Ave, 
    Upland, CA 
     (2.6 miles away)
    Experience:
    27+ years
    Languages Spoken:
    English
    Offers Telehealth

    Ravinder Singh is a primary care provider, practicing in Family Medicine in Upland, California. He has been practicing medicine for over 27 years. Dr. Singh is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). He is also highly rated in 108 other conditions, according to our data. His clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Hypertension, Liver Transplant, and Knee Replacement. Dr. Singh is board certified in American Board Of Family Medicine.

    Advanced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    Advanced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology

    Ct Hung MD Inc.

    629 N 13th Ave, 
    Upland, CA 
     (2.7 miles away)
    Languages Spoken:
    English

    Chuang-ti Hung is a Gastroenterologist practicing medicine in Upland, California. Dr. Hung is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). He is also highly rated in 47 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Trichohepatoenteric Syndrome, Hemorrhoids, Gastrectomy, and Gastrostomy.

    Advanced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    Advanced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology

    Basim Z. Abdelkarim, M.D., Inc.

    1310 San Bernardino Rd, 
    Upland, CA 
     (2.7 miles away)
    Experience:
    18+ years
    Languages Spoken:
    English
    Offers Telehealth

    Priyanka Yaramada is a Gastroenterologist practicing medicine in Upland, California. She has been practicing medicine for over 18 years. Dr. Yaramada is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). She is also highly rated in 27 other conditions, according to our data. Her clinical expertise encompasses Anemia, Diverticular Disease, Hemorrhoids, Gastrectomy, and Gastrostomy. Dr. Yaramada is board certified in American Board Of Internal Medicine.

    Advanced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    Advanced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology

    Chaparral Medical Group Inc.

    1330 San Bernardino Rd Ste L, 
    Upland, CA 
     (2.9 miles away)
    Languages Spoken:
    English

    Nischita Merla is a Gastroenterologist practicing medicine in Upland, California. Dr. Merla is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). She is also highly rated in 36 other conditions, according to our data. Her clinical expertise encompasses Attenuated Familial Adenomatous Polyposis, Cronkhite-Canada Disease, Juvenile Polyposis Syndrome, Endoscopy, and Gastrostomy.

    Advanced in Gastroesophageal Reflux Disease (GERD)
    Internal Medicine
    Advanced in Gastroesophageal Reflux Disease (GERD)
    Internal Medicine

    Kevin Jenkins, Do, Inc.

    944 W Foothill Blvd, 
    Upland, CA 
     (3.1 miles away)
    Experience:
    53+ years
    Languages Spoken:
    English

    Kevin Jenkins is an Internal Medicine provider practicing medicine in Upland, California. He has been practicing medicine for over 53 years. Dr. Jenkins is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). He is also highly rated in 20 other conditions, according to our data. His clinical expertise encompasses Irritable Bowel Syndrome (IBS), Diverticular Disease, Hemorrhoids, Gastrectomy, and Gastrostomy. Dr. Jenkins is board certified in American Osteopathic Board Of Internal Medicine.

    Advanced in Gastroesophageal Reflux Disease (GERD)
    Internal Medicine
    Advanced in Gastroesophageal Reflux Disease (GERD)
    Internal Medicine

    Hussain Al-Darsani M.D. A Professional Corp.

    5562 Philadelphia St Ste 203, 
    Chino, CA 
     (4.6 miles away)
    Languages Spoken:
    English

    Hussain Al is an Internal Medicine provider practicing medicine in Chino, California. Dr. Al is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Diverticular Disease, Gastroesophageal Reflux Disease (GERD), Gastritis, Gastrostomy, and Gastrectomy.

    Advanced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    Advanced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology

    Carlos R. Vigil DO A Professional Corp.

    7974 Haven Ave Ste 210, 
    Rancho Cucamonga, CA 
     (4.7 miles away)
    Languages Spoken:
    English

    Hussein Abidali is a Gastroenterologist practicing medicine in Rancho Cucamonga, California. Dr. Abidali is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). He is also highly rated in 44 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Hiatal Hernia, Congenital Diaphragmatic Hernia, Endoscopy, and Gastrostomy.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology

    Andrea S Tieng MD, Inc

    10801 Foothill Blvd, Ste 106, 
    Rancho Cucamonga, CA 
     (5.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Dr. Andrea Tieng was born and raised in New York City. She graduated Summa Cum Laude from the City University of New York and completed her medical degree at the State University of New York Health Science Center at the SUNY Downstate College of Medicine in Brooklyn, New York.Her internship and residency in Internal Medicine was completed at the Albert Einstein College of Medicine at Long Island Jewish Medical Center in New Hyde Park, New York, where she also fulfilled her Gastroenterology and Hepatology Fellowship.Board Certified by the American Board of Internal Medicine, Dr. Tieng is licensed to practice in both California and New York. She is a member of the American College of Gastroenterology and the American Gastroenterology Association.Prior to founding her own practice in Redlands and San Bernardino, Dr. Tieng worked as a private gastroenterologist at Cedars-Sinai Medical Center in Los Angeles.Dr. Tieng specializes in providing sensitive and compassionate care to women, and delivers personalized care to all patients 18 years and older. Dr. Tieng is a board certified physician who treats patients with gastrointestinal illnesses and liver diseases. She utilizes innovative technology to perform diagnostic and therapeutic procedures of the gastrointestinal tract, including colonoscopy and upper endoscopy. Dr. Tieng is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Diverticular Disease, Familial Adenomatous Polyposis, Gastritis, Gastrectomy, and Endoscopy. Dr. Tieng is board certified in Internal Medicine. Dr. Tieng is currently accepting new patients.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    General Practice
    Experienced in Gastroesophageal Reflux Disease (GERD)
    General Practice

    California Medical Clinic Inc.

    402 E Holt Blvd, 
    Ontario, CA 
     (0.1 miles away)
    Languages Spoken:
    English

    David Lozano is a primary care provider, practicing in General Practice in Ontario, California. Dr. Lozano is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Osteomyelitis in Children, Type 2 Diabetes (T2D), High Cholesterol, and Cirrhosis.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine

    Unicare Community Health Center Inc.

    437 N Euclid Ave, 
    Ontario, CA 
     (0.3 miles away)
    Languages Spoken:
    English

    William Paley is a primary care provider, practicing in Family Medicine in Ontario, California. Dr. Paley is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). He is also highly rated in 25 other conditions, according to our data. His clinical expertise encompasses Obesity in Children, Obesity, Food Allergy, and Tangier Disease.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Internal Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Internal Medicine

    Our Family Medical Group Inc.

    1131 W 6th St Ste 150, 
    Ontario, CA 
     (1.5 miles away)
    Languages Spoken:
    English

    Hedy Loa is a primary care provider, practicing in Internal Medicine in Ontario, California. Dr. Loa is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). She is also highly rated in 8 other conditions, according to our data. Her clinical expertise encompasses Type 2 Diabetes (T2D), Obesity, Osteomyelitis in Children, Gastrostomy, and Endoscopy.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    General Surgery
    Experienced in Gastroesophageal Reflux Disease (GERD)
    General Surgery

    Upland Surgical Associates

    901 San Bernardino Rd, 
    Upland, CA 
     (2.5 miles away)
    Experience:
    28+ years
    Languages Spoken:
    English

    Donna Dudziak is a General Surgeon practicing medicine in Upland, California. She has been practicing medicine for over 28 years. Dr. Dudziak is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). She is also highly rated in 12 other conditions, according to our data. Her clinical expertise encompasses Hernia, Gallbladder Disease, Cholecystitis, Hernia Surgery, and Colostomy. Dr. Dudziak is board certified in American Board Of Surgery.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine

    S. M. Hammad Rizvi, M.D., Inc.

    901 San Bernardino Rd, 
    Upland, CA 
     (2.5 miles away)
    Experience:
    25+ years
    Languages Spoken:
    English
    Offers Telehealth

    Syed Rizvi is a primary care provider, practicing in Family Medicine in Upland, California. He has been practicing medicine for over 25 years. Dr. Rizvi is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Hypertensive Heart Disease, Multisystem Inflammatory Syndrome in Children (MIS-C), COVID-19, Gastrostomy, and Endoscopy. Dr. Rizvi is board certified in American Board Of Family Medicine.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine

    Edge Family Medicine

    440 N Mountain Ave, 
    Upland, CA 
     (2.6 miles away)
    Experience:
    20+ years
    Languages Spoken:
    English

    Mike Zuniga is a primary care provider, practicing in Family Medicine in Upland, California. He has been practicing medicine for over 20 years. Dr. Zuniga is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Hypertension, Familial Hypertension, and Cirrhosis. Dr. Zuniga is board certified in American Board Of Family Medicine.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine

    Whole Family Care Inc

    637 N 13th Ave, 
    Upland, CA 
     (2.7 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Mina Soliman is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Soliman is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Gardner-Diamond Syndrome, Purpura, Autoerythrocyte Sensitivity, and Familial Combined Hyperlipidemia.

    Showing 1-20 of 314

    Last Updated: 04/28/2026

    What is the definition of Gastroesophageal Reflux Disease (GERD)?

    Gastroesophageal reflux disease (GERD) is a condition in which the stomach contents leak backward from the stomach into the esophagus (food pipe). Food travels from your mouth to the stomach through your esophagus. GERD can irritate the food pipe and cause heartburn and other symptoms.

    When should I see a Gastroesophageal Reflux Disease (GERD) doctor near Ontario, CA?

    There are various reasons why you may want to see a specialist, such as: 

    • Your primary care provider recommends it. 
    • Your condition requires expert knowledge and specialized care. 
    • Your symptoms persist or worsen despite treatment. 
    • You need specialized testing or procedures. 
    • You want a second opinion.  

    What should I consider when choosing a Gastroesophageal Reflux Disease (GERD) doctor near Ontario, CA?

    It’s important to see a provider with expertise in your specific condition. Each provider profile in MediFind’s doctor database includes information on which conditions they treat, years of experience, research contributions, languages spoken, insurance plans accepted, and more.  

    How does MediFind rank Gastroesophageal Reflux Disease (GERD) doctors near Ontario, CA?

    MediFind’s rankings are based on a variety of data sources, such as the number of articles a doctor has published in medical journals, participation in clinical trials and industry conferences, as well as the number of patients that provider sees for a given condition. Note that MediFind’s provider database is not based on user reviews, and providers do not pay to be included in the database. 

    What types of insurance are accepted by Gastroesophageal Reflux Disease (GERD) doctors near Ontario, CA?

    Most profiles in MediFind’s doctor database include a list of insurance plans accepted by that provider. However, it’s a good idea to contact the provider’s office to make sure they still accept your insurance, then doublecheck by contacting your insurance plan to confirm they’re in network. 

    How can I book an appointment online with a Gastroesophageal Reflux Disease (GERD) doctor near Ontario, CA?

    MediFind offers direct scheduling for certain providers using the “Request Appointment” button on that provider’s profile. If the schedule option is not available for a provider, tap the red “Show Phone Number” button on their profile to get their contact information. If you prefer to find providers who offer online scheduling, select “Schedules online” under the “Availability” category of the filter feature on the left side of the Gastroesophageal Reflux Disease (GERD) doctor search results page. 

    Why is it important to get a second opinion from a different Gastroesophageal Reflux Disease (GERD) doctor?

    Second opinions are an opportunity to confirm a diagnosis and its root cause, learn about alternative treatment options, or simply gain peace of mind. Many people, especially those with serious diagnoses, get second opinions so they can understand all their options and make informed decisions, so don’t hesitate to get one if you have any doubts or need more information or clarification regarding your care. Note that some insurance plans require second opinions, while others don’t cover second opinions, so be sure to confirm with your insurance provider first.   

    How can I prepare for my appointment with a Gastroesophageal Reflux Disease (GERD) doctor near Ontario, CA?

    Prepare for your appointment by gathering the following items: 

    • Copies of medical records (dating back at least one year) 
    • Your medical history, including illnesses, medical conditions, surgeries, and other doctors you see 
    • Family history of disease 
    • List of current prescription drugs, over-the-counter medicines, vitamins, and herbal remedies or supplements including names and doses 
    • Allergies to medications, food, latex, insects, etc.  
    • List of questions and concerns 
    • Your insurance card 

    You might also contact the provider’s office to see if they offer transportation or childcare services or if you’re allowed to bring a loved one for support or to take notes during your visit. 

    What questions should I ask my Gastroesophageal Reflux Disease (GERD) doctor?

    Here are some sample questions: 

    • Can you explain in simple terms what this condition is and how it’s treated? 
    • What symptoms or side effects should I watch for? 
    • What tests will be involved, and when can I expect results? 
    • Are there other specialists I need to see? 
    • What’s the best way to reach you if I have follow-up questions? 

    How can I learn about the latest clinical trials and research advances my Gastroesophageal Reflux Disease (GERD) doctor may know about?

    MediFind’s Clinical Trials tool asks you a series of questions to help you narrow down your search by health condition, age, gender, location, how far you’re willing to travel, and more. Each question you answer filters down the number of trials until you find the ones that are most relevant to you. 

    MediFind’s Latest Advances tool features summaries of recent articles published in medical journals. We use cutting-edge technology to scour medical publication databases for the latest research advancements on any given condition, then we simplify this information in a way that’s useful and easy to understand. 

    Can I filter my search to show male or female Gastroesophageal Reflux Disease (GERD) doctors near Ontario, CA?

    Look for the filter feature on the left side of the Gastroesophageal Reflux Disease (GERD) doctor search results page. Select “Female” or “Male” under the “Gender” category to search for female or male providers exclusively. If the “Any” option is selected, it will pull results for both male and female providers. 

    Can I filter my search to find a Gastroesophageal Reflux Disease (GERD) doctor that offers video calls?

    Look for the filter feature on the left-side of the Gastroesophageal Reflux Disease (GERD) doctor search results page. Select “Offers telehealth visits” under the Availability category to search for providers who offer virtual appointments (video calls). 

    Reviewed on: 11/11/24  

    By: MediFind Medical Staff 

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