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

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

Last Updated: 04/28/2026

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MediFind found 507 doctor with experience in Gastroesophageal Reflux Disease (GERD) near Diamond Bar, CA. Of these, 458 are Experienced, 43 are Advanced, 5 are Distinguished and 1 are Elite.

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

    Nikolai Bildzukewicz is a General Surgeon in Chino Hills, California. Dr. Bildzukewicz is rated as an Elite provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Hiatal Hernia, Hernia, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Gastrectomy. Dr. Bildzukewicz is currently accepting new patients.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Pediatrics | Internal Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Pediatrics | Internal Medicine
    2707 South Diamond Bar Boulevard, Suite 104, 
    Diamond Bar, CA 
     (1.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Jonathan Ou is a primary care provider, practicing in Pediatrics and Internal Medicine in Diamond Bar, California. Dr. Ou is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Osteomyelitis in Children, High Cholesterol, Febrile Neutropenia, and Vitamin D Deficiency.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    15855 Pomona Rincon Road, 
    Chino Hills, CA 
     (4.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Vijay Prabhakar is a Gastroenterologist in Chino Hills, California. Dr. Prabhakar is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Hemorrhoids, Familial Adenomatous Polyposis, Diverticular Disease, and Intestinal Cancer. Dr. Prabhakar is currently accepting new patients.

    Learn about our expert tiers
    Advanced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    Advanced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology

    Life Medical Group Inc.

    1900 S Brea Canyon Rd Unit B, 
    Diamond Bar, CA 
     (1.2 miles away)
    Languages Spoken:
    English

    Sung Yoo is a Gastroenterologist in Diamond Bar, California. Dr. Yoo is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Indigestion, Portal Hypertension, Childhood Volvulus, and Chronic Erosive Gastritis.

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

    Office

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

    Sudhir Reddy is an Internal Medicine provider in Chino, California. Dr. Reddy is rated as a Distinguished provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Irritable Bowel Syndrome (IBS), Gastroesophageal Reflux Disease (GERD), Hemorrhoids, Gastrostomy, and Endoscopy.

    Dennis J. Ponzio
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine | Pediatrics
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine | Pediatrics

    Caduceus Medical Group

    18200 Yorba Linda Blvd, Suite 250, 
    Yorba Linda, CA 
     (7.8 miles away)
    Experience:
    38+ years
    Languages Spoken:
    English
    Offers Telehealth

    Dennis Ponzio is a primary care provider, practicing in Pediatrics and Family Medicine in Yorba Linda, California. Dr. Ponzio has been practicing medicine for over 38 years and is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are High Cholesterol, Familial Hypertension, Hypertension, and Glucocorticoid-Remediable Aldosteronism.

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

    Citrus Valley Gastroenterology A California Medical Corporation

    500 W San Bernardino Rd, 
    Covina, CA 
     (7.9 miles away)
    Experience:
    41+ years
    Languages Spoken:
    English

    Osama Sidhom is an Internal Medicine specialist and a Gastroenterologist in Covina, California. Dr. Sidhom has been practicing medicine for over 41 years and is rated as a Distinguished provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Swallowing Difficulty, Painful Swallowing, Gastrointestinal Bleeding, Gastrostomy, and Gastrectomy.

    Advanced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    Advanced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    2141 North Harbor Boulevard, Suite 25000, 
    Fullerton, CA 
     (9.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Yee Miao is a Gastroenterologist in Fullerton, California. Dr. Miao is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Jaundice, Hepatitis B, Hepatitis, and Gastroesophageal Reflux Disease (GERD). Dr. Miao is currently accepting new patients.

    Advanced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    Advanced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    1837 Sunny Crest Drive, 
    Fullerton, CA 
     (9.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Hyder Jamal is a Gastroenterologist in Fullerton, California. Dr. Jamal is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Diverticular Disease, Familial Adenomatous Polyposis, Barrett Esophagus, Endoscopy, and Gastrostomy. Dr. Jamal is currently accepting new patients.

    Advanced in Gastroesophageal Reflux Disease (GERD)
    Thoracic Surgery
    Advanced in Gastroesophageal Reflux Disease (GERD)
    Thoracic Surgery
    2151 North Harbor Boulevard, Suite 3100, 
    Fullerton, CA 
     (9.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Daniel Oh is a Thoracic Surgeon in Fullerton, California. Dr. Oh is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Hiatal Hernia, Lung Nodules, Pleuropulmonary Blastoma, Squamous Cell Lung Carcinoma, and Endoscopy. Dr. Oh is currently accepting new patients.

    Advanced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    Advanced in Gastroesophageal Reflux Disease (GERD)
    Gastroenterology
    1837 Sunny Crest Drive, 
    Fullerton, CA 
     (9.1 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sajen Mathews is a Gastroenterologist in Fullerton, California. Dr. Mathews is rated as an Advanced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Gastric Dysmotility, Diverticular Disease, Benign Esophageal Stricture, Endoscopy, and Gastrostomy.

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

    Citrus Valley Gastroenterology A California Medical Corporation

    415 W Route 66, 
    Glendora, CA 
     (9.5 miles away)
    Experience:
    27+ years
    Languages Spoken:
    English

    Sartaj Arora is an Internal Medicine specialist and a Gastroenterologist in Glendora, California. Dr. Arora has been practicing medicine for over 27 years and is rated as a Distinguished provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Swallowing Difficulty, Painful Swallowing, Gastrointestinal Bleeding, Gastrectomy, and Gastrostomy.

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

    St. Jude Medical Center

    101 E Valencia Mesa Dr, 
    Fullerton, CA 
     (9.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Caitlin Houghton is a General Surgeon in Fullerton, California. Dr. Houghton is rated as a Distinguished provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). Her top areas of expertise are Hernia, Hiatal Hernia, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Gastrectomy.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine | Geriatrics
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine | Geriatrics
    253 South Diamond Bar Boulevard, 
    Diamond Bar, CA 
     (1.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    David Rhodes is a primary care provider, practicing in Family Medicine and Geriatrics in Diamond Bar, California. Dr. Rhodes is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Type 2 Diabetes (T2D), Osteomyelitis in Children, Glucocorticoid-Remediable Aldosteronism, and Hypertension.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine
    253 South Diamond Bar Boulevard, 
    Diamond Bar, CA 
     (1.2 miles away)
    Languages Spoken:
    English

    Douglas Starr is a primary care provider, practicing in Family Medicine in Diamond Bar, California. Dr. Starr is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Hypertensive Heart Disease, Enlarged Liver, High Cholesterol, and Type 2 Diabetes (T2D).

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine
    253 South Diamond Bar Boulevard, 
    Diamond Bar, CA 
     (1.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Eric Lee is a primary care provider, practicing in Family Medicine in Diamond Bar, California. Dr. Lee is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are High Cholesterol, Methemoglobinemia, Type 2 Diabetes (T2D), and Gout. Dr. Lee is currently accepting new patients.

    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine
    Experienced in Gastroesophageal Reflux Disease (GERD)
    Family Medicine
    253 South Diamond Bar Boulevard, 
    Diamond Bar, CA 
     (1.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Aaron Lin is a primary care provider, practicing in Family Medicine in Diamond Bar, California. Dr. Lin is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are High Cholesterol, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), Sciatica, and Chronic Pain. Dr. Lin is currently accepting new patients.

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

    Sharma Medical Clinic

    315 S Diamond Bar Blvd, 
    Diamond Bar, CA 
     (1.3 miles away)
    Experience:
    14+ years
    Languages Spoken:
    English

    Ekta Sharma is a primary care provider, practicing in Family Medicine in Diamond Bar, California. Dr. Sharma has been practicing medicine for over 14 years and is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). Her top areas of expertise are Osteomyelitis in Children, Type 2 Diabetes (T2D), Familial Combined Hyperlipidemia, and Xanthoma.

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

    Diamond Bar Medical Office

    1336 Bridgegate Dr, 
    Diamond Bar, CA 
     (1.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Jun Huang is a primary care provider, practicing in Family Medicine in Diamond Bar, California. Dr. Huang is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Osteomyelitis in Children, Type 2 Diabetes (T2D), Hypertension, and Familial Hypertension. Dr. Huang is currently accepting new patients.

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

    Premier Family Medicine Associates, Inc

    3110 Chino Ave, 
    Chino Hills, CA 
     (4.2 miles away)
    Experience:
    25+ years
    Languages Spoken:
    English

    Stefan Reynoso is a primary care provider, practicing in Family Medicine in Chino Hills, California. Dr. Reynoso has been practicing medicine for over 25 years and is rated as an Experienced provider by MediFind in the treatment of Gastroesophageal Reflux Disease (GERD). His top areas of expertise are Tracheitis, Otitis, Parinaud Oculoglandular Syndrome, and Cellulitis.

    Showing 1-20 of 507

    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 Diamond Bar, 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 Diamond Bar, 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 Diamond Bar, 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 Diamond Bar, 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 Diamond Bar, 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 Diamond Bar, 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 Diamond Bar, 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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