The 20 Best Gallstones Doctors Near Me in Ontario, CA

Find the Top Gallstones Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 180 doctor with experience in Gallstones near Ontario, CA. Of these, 154 are Experienced, 23 are Advanced and 3 are Distinguished.

Location
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180 providers found
    Distinguished in Gallstones
    General Surgery
    Distinguished in Gallstones
    General Surgery

    Upland Surgical Associates

    510 N 13th Ave, 
    Upland, CA 
     (2.6 miles away)
    Experience:
    30+ years
    Languages Spoken:
    English

    Bryce Beseth is a General Surgeon practicing medicine in Upland, California. He has been practicing medicine for over 30 years. Dr. Beseth is rated as a Distinguished provider by MediFind in the treatment of Gallstones. He is also highly rated in 39 other conditions, according to our data. His clinical expertise encompasses Gangrene, Choledocholithiasis, Necrosis, Hernia Surgery, and Colostomy. Dr. Beseth is board certified in American Board Of Surgery.

    Experienced in Gallstones
    General Surgery
    Experienced in Gallstones
    General Surgery

    Ontario Medical Center

    2295 S Vineyard Ave, 
    Ontario, CA 
     (3.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Payam Falatoonzadeh is a General Surgeon practicing medicine in Ontario, California. Dr. Falatoonzadeh is rated as an Experienced provider by MediFind in the treatment of Gallstones. His clinical expertise encompasses Retroperitoneal Inflammation, Gallbladder Disease, Choledocholithiasis, and Gallstones. Dr. Falatoonzadeh is currently accepting new patients.

    Advanced in Gallstones
    General Surgery
    Advanced in Gallstones
    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 Advanced provider by MediFind in the treatment of Gallstones. 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.

    Learn about our expert tiers
    Advanced in Gallstones
    Gastroenterology
    Advanced in Gallstones
    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 Gallstones. 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 Gallstones
    Gastroenterology
    Advanced in Gallstones
    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 an Advanced provider by MediFind in the treatment of Gallstones. 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.

    Advanced in Gallstones
    General Surgery
    Advanced in Gallstones
    General Surgery

    Upland Surgical Associates

    811 E 11th St, 
    Upland, CA 
     (2.8 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English

    Adam Sugihara is a General Surgeon practicing medicine in Upland, California. He has been practicing medicine for over 17 years. Dr. Sugihara is rated as an Advanced provider by MediFind in the treatment of Gallstones. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Cellulitis, Cholecystitis, Retroperitoneal Inflammation, Hernia Surgery, and Gastrostomy. Dr. Sugihara is board certified in American Board Of Surgery.

    Advanced in Gallstones
    Gastroenterology
    Advanced in Gallstones
    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 Gallstones. 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 Gallstones
    General Surgery
    Advanced in Gallstones
    General Surgery

    Anthony S. Oh, MD A Medical Corporation

    4950 San Bernardino St, 
    Montclair, CA 
     (2.9 miles away)
    Experience:
    30+ years
    Languages Spoken:
    English

    Anthony Oh is a General Surgeon practicing medicine in Montclair, California. He has been practicing medicine for over 30 years. Dr. Oh is rated as an Advanced provider by MediFind in the treatment of Gallstones. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Gallstones, Choledocholithiasis, Gallbladder Disease, Colostomy, and Gastrostomy. Dr. Oh is board certified in American Board Of Surgery.

    Advanced in Gallstones
    Gastroenterology
    Advanced in Gallstones
    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 Gallstones. 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.

    Advanced in Gallstones
    General Surgery
    Advanced in Gallstones
    General Surgery

    Womens Medical Group Of Upland Inc.

    8263 Grove Ave Ste 204, 
    Rancho Cucamonga, CA 
     (4.7 miles away)
    Languages Spoken:
    English

    Brian Spivack is a General Surgeon practicing medicine in Rancho Cucamonga, California. Dr. Spivack is rated as an Advanced provider by MediFind in the treatment of Gallstones. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Hernia, Angiosarcoma, Melanoma, Hernia Surgery, and Lymphadenectomy.

    Distinguished in Gallstones
    Gastroenterology | General Surgery
    Distinguished in Gallstones
    Gastroenterology | General Surgery

    Vinod Garg, MD Inc

    250 W Bonita Ave, 
    Pomona, CA 
     (6.3 miles away)
    Experience:
    47+ years
    Languages Spoken:
    English

    Vinod Garg is a General Surgeon and a Gastroenterologist practicing medicine in Pomona, California. He has been practicing medicine for over 47 years. Dr. Garg is rated as a Distinguished provider by MediFind in the treatment of Gallstones. He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Gangrene, Choledocholithiasis, Cellulitis, Hernia Surgery, and Gastrostomy. Dr. Garg is board certified in American Board Surgery.

    Experienced in Gallstones
    General Practice
    Experienced in Gallstones
    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 Gallstones. 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 Gallstones
    Family Medicine
    Experienced in Gallstones
    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 Gallstones. 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 Gallstones
    General Surgery
    Experienced in Gallstones
    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 Experienced provider by MediFind in the treatment of Gallstones. 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 Gallstones
    Family Medicine
    Experienced in Gallstones
    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 Gallstones. 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 Gallstones
    Internal Medicine
    Experienced in Gallstones
    Internal Medicine

    ProHealth Partners A Medical Group Inc.

    1042 San Bernardino Rd, 
    Upland, CA 
     (2.6 miles away)
    Languages Spoken:
    English

    Mansurur Khan is a primary care provider, practicing in Internal Medicine in Upland, California. Dr. Khan is rated as an Experienced provider by MediFind in the treatment of Gallstones. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Renovascular Hypertension, Stroke, Hypertensive Heart Disease, Gastrostomy, and Endoscopy.

    Experienced in Gallstones
    Family Medicine
    Experienced in Gallstones
    Family Medicine

    ProHealth Partners A Medical Group Inc.

    1042 San Bernardino Rd, 
    Upland, CA 
     (2.6 miles away)
    Languages Spoken:
    English

    Azhar Majeed is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Majeed is rated as an Experienced provider by MediFind in the treatment of Gallstones. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Hypertensive Heart Disease, Acute Kidney Failure, Multisystem Inflammatory Syndrome in Children (MIS-C), Gastrostomy, and Endoscopy.

    Experienced in Gallstones
    Family Medicine
    Experienced in Gallstones
    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 Experienced provider by MediFind in the treatment of Gallstones. 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.

    Experienced in Gallstones
    Surgical Oncology
    Experienced in Gallstones
    Surgical Oncology

    Lawrence Wagman, M.D.

    1100 San Bernardino Rd, 
    Upland, CA 
     (2.6 miles away)
    Languages Spoken:
    English

    Lawrence Wagman is a Surgical Oncologist practicing medicine in Upland, California. Dr. Wagman is rated as an Experienced provider by MediFind in the treatment of Gallstones. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Paget Disease of the Breast, Angiosarcoma, Lymphadenectomy, and Pancreatectomy.

    Experienced in Gallstones
    Family Medicine
    Experienced in Gallstones
    Family Medicine

    San Antonio Regional Hospital

    999 San Bernardino Rd, 
    Upland, CA 
     (2.7 miles away)
    Languages Spoken:
    English

    Asha Ubhayakar is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Ubhayakar is rated as an Experienced provider by MediFind in the treatment of Gallstones. Her clinical expertise encompasses Gallbladder Disease, Gallstones, Cellulitis, and Cholecystitis.

    Showing 1-20 of 180

    Last Updated: 04/28/2026

    What is the definition of Gallstones?

    Gallstones are hard deposits that form inside the gallbladder. These may be as small as a grain of sand or as large as a golf ball.

    When should I see a Gallstones 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 Gallstones 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 Gallstones 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 Gallstones 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 Gallstones 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 Gallstones doctor search results page. 

    Why is it important to get a second opinion from a different Gallstones 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 Gallstones 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 Gallstones 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 Gallstones 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 Gallstones doctors near Ontario, CA?

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

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