The 20 Best Gastritis Doctors Near Me in Upland, CA

Find the Top Gastritis Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 88 doctor with experience in Gastritis near Upland, CA. Of these, 69 are Experienced, 13 are Advanced and 6 are Distinguished.

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88 providers found
    Advanced in Gastritis
    Gastroenterology
    Advanced in Gastritis
    Gastroenterology

    Andrea S Tieng MD, Inc

    10801 Foothill Blvd, Ste 106, 
    Rancho Cucamonga, CA 
     (4.5 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 Advanced provider by MediFind in the treatment of Gastritis. 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.

    Distinguished in Gastritis
    Gastroenterology
    Distinguished in Gastritis
    Gastroenterology

    Ct Hung MD Inc.

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

    Chuang-ti Hung is a Gastroenterologist practicing medicine in Upland, California. Dr. Hung is rated as a Distinguished provider by MediFind in the treatment of Gastritis. 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.

    Distinguished in Gastritis
    Gastroenterology
    Distinguished in Gastritis
    Gastroenterology

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

    1310 San Bernardino Rd, 
    Upland, CA 
     (0.9 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 Gastritis. 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.

    Learn about our expert tiers
    Advanced in Gastritis
    Gastroenterology
    Advanced in Gastritis
    Gastroenterology

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

    1310 San Bernardino Rd, 
    Upland, CA 
     (0.9 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 Gastritis. 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 Gastritis
    Gastroenterology
    Advanced in Gastritis
    Gastroenterology

    Chaparral Medical Group Inc.

    1330 San Bernardino Rd Ste L, 
    Upland, CA 
     (0.9 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 Gastritis. 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 Gastritis
    Internal Medicine
    Advanced in Gastritis
    Internal Medicine

    Kevin Jenkins, Do, Inc.

    944 W Foothill Blvd, 
    Upland, CA 
     (1.1 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 Gastritis. 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 Gastritis
    Gastroenterology
    Advanced in Gastritis
    Gastroenterology

    Carlos R. Vigil DO A Professional Corp.

    7974 Haven Ave Ste 210, 
    Rancho Cucamonga, CA 
     (4.0 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 Gastritis. 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 Gastritis
    Family Medicine
    Experienced in Gastritis
    Family Medicine

    Romeo Samouh MD Inc.

    811 E 11th St Ste 102, 
    Upland, CA 
     (0.6 miles away)
    Languages Spoken:
    English

    Romeo Samouh is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Samouh is rated as an Experienced provider by MediFind in the treatment of Gastritis. His clinical expertise encompasses Acrospiroma, Maturity Onset Diabetes of the Young, Vitamin D Deficiency, and Marie Unna Congenital Hypotrichosis.

    Experienced in Gastritis
    Internal Medicine
    Experienced in Gastritis
    Internal Medicine

    Premiere Medical Group Of California

    901 San Bernardino Rd Ste 101, 
    Upland, CA 
     (0.9 miles away)
    Languages Spoken:
    English

    Ythanh Nguyen is a primary care provider, practicing in Internal Medicine in Upland, California. Dr. Nguyen is rated as an Experienced provider by MediFind in the treatment of Gastritis. She is also highly rated in 26 other conditions, according to our data. Her clinical expertise encompasses Peptic Ulcer, Sepsis, Necrosis, Endoscopy, and Colonoscopy.

    Experienced in Gastritis
    Internal Medicine
    Experienced in Gastritis
    Internal Medicine

    San Antonio Regional Medical Group Inc.

    901 San Bernardino Rd Ste 300, 
    Upland, CA 
     (0.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Ai-jen Wang is a primary care provider, practicing in Internal Medicine in Upland, California. Dr. Wang is rated as an Experienced provider by MediFind in the treatment of Gastritis. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Necrosis, Sepsis, Atypical Pneumonia, Colonoscopy, and Endoscopy.

    Experienced in Gastritis
    Family Medicine
    Experienced in Gastritis
    Family Medicine

    Bhupal Kommineni M.D. Inc.

    1330 San Bernardino Rd Ste G, 
    Upland, CA 
     (0.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    James Ho is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Ho is rated as an Experienced provider by MediFind in the treatment of Gastritis. His clinical expertise encompasses Type 2 Diabetes (T2D), Encephalitis, Insomnia, and Hypertension.

    Experienced in Gastritis
    Internal Medicine
    Experienced in Gastritis
    Internal Medicine

    Grove Internal Medicine, Inc.

    8283 Grove Ave, 
    Rancho Cucamonga, CA 
     (1.2 miles away)
    Experience:
    28+ years
    Languages Spoken:
    English
    Offers Telehealth

    Sean To is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. He has been practicing medicine for over 28 years. Dr. To is rated as an Experienced provider by MediFind in the treatment of Gastritis. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Osteomyelitis in Children, Type 2 Diabetes (T2D), High Cholesterol, and Familial Hypertension.

    Experienced in Gastritis
    General Surgery
    Experienced in Gastritis
    General Surgery

    Healthpointe Medical Group Inc.

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

    Stewart Rendon is a General Surgeon practicing medicine in Ontario, California. Dr. Rendon is rated as an Experienced provider by MediFind in the treatment of Gastritis. 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.

    Experienced in Gastritis
    General Practice
    Experienced in Gastritis
    General Practice

    California Medical Clinic Inc.

    402 E Holt Blvd, 
    Ontario, CA 
     (2.4 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 Gastritis. 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 Gastritis
    Family Medicine
    Experienced in Gastritis
    Family Medicine

    Lally Medical Group A Professional Corporation

    5050 San Bernardino St, 
    Montclair, CA 
     (3.0 miles away)
    Languages Spoken:
    English

    James Lally is a primary care provider, practicing in Family Medicine in Montclair, California. Dr. Lally is rated as an Experienced provider by MediFind in the treatment of Gastritis. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses End-Stage Renal Disease (ESRD), Tietz Syndrome, Costochondritis, Endoscopy, and Hip Replacement.

    Experienced in Gastritis
    Family Medicine
    Experienced in Gastritis
    Family Medicine

    Premier Family Medicine Associates, Inc

    1601 Monte Vista Ave, 
    Claremont, CA 
     (3.1 miles away)
    Experience:
    35+ years
    Languages Spoken:
    English

    Snezana Begovic is a primary care provider, practicing in Family Medicine in Claremont, California. She has been practicing medicine for over 35 years. Dr. Begovic is rated as an Experienced provider by MediFind in the treatment of Gastritis. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Amenorrhea, Obesity, Obesity in Children, Asthma in Children, and Intrauterine Device Insertion. Dr. Begovic is board certified in American Board Of Family Medicine.

    Experienced in Gastritis
    Family Medicine
    Experienced in Gastritis
    Family Medicine

    Office

    5404 Moreno St Ste G, 
    Montclair, CA 
     (3.3 miles away)
    Languages Spoken:
    English

    Ginger Leon is a primary care provider, practicing in Family Medicine in Montclair, California. Dr. Leon is rated as an Experienced provider by MediFind in the treatment of Gastritis. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Osteomyelitis in Children, Seasonal Affective Disorder (SAD), Gastritis, and Infant Hyperglycemia.

    Experienced in Gastritis
    Internal Medicine
    Experienced in Gastritis
    Internal Medicine

    Carlos R. Vigil DO A Professional Corp.

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

    Carlos Vigil is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. Dr. Vigil is rated as an Experienced provider by MediFind in the treatment of Gastritis. He is also highly rated in 26 other conditions, according to our data. His clinical expertise encompasses Acute Kidney Failure, Renovascular Hypertension, End-Stage Renal Disease (ESRD), Gastrostomy, and Endoscopy.

    Experienced in Gastritis
    Family Medicine
    Experienced in Gastritis
    Family Medicine

    Office

    1601 Monte Vista Ave Ste 100, 
    Claremont, CA 
     (4.3 miles away)
    Languages Spoken:
    English

    Victor Alvarez is a primary care provider, practicing in Family Medicine in Claremont, California. Dr. Alvarez is rated as an Experienced provider by MediFind in the treatment of Gastritis. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Vitamin D Deficiency, Cirrhosis, and Familial Combined Hyperlipidemia.

    Experienced in Gastritis
    Family Medicine
    Experienced in Gastritis
    Family Medicine

    Office

    1601 Monte Vista Ave Ste 100, 
    Claremont, CA 
     (4.3 miles away)
    Languages Spoken:
    English

    Lester Holstein is a primary care provider, practicing in Family Medicine in Claremont, California. Dr. Holstein is rated as an Experienced provider by MediFind in the treatment of Gastritis. He is also highly rated in 30 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Acne, Hypertension, and Glucocorticoid-Remediable Aldosteronism.

    Showing 1-20 of 88

    Last Updated: 04/28/2026

    What is the definition of Gastritis?

    Gastritis occurs when the lining of the stomach becomes inflamed or swollen.

    Gastritis may last for only a short time (acute gastritis) or it may linger for months to years (chronic gastritis).

    When should I see a Gastritis doctor near Upland, 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 Gastritis doctor near Upland, 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 Gastritis doctors near Upland, 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 Gastritis doctors near Upland, 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 Gastritis doctor near Upland, 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 Gastritis doctor search results page. 

    Why is it important to get a second opinion from a different Gastritis 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 Gastritis doctor near Upland, 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 Gastritis 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 Gastritis 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 Gastritis doctors near Upland, CA?

    Look for the filter feature on the left side of the Gastritis 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 Gastritis doctor that offers video calls?

    Look for the filter feature on the left-side of the Gastritis 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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