The 20 Best Peptic Ulcer Doctors Near Me in Diamond Bar, CA

Find the Top Peptic Ulcer Experts and Specialists

The 20 Best Peptic Ulcer Doctors near Diamond Bar, CA

Last Updated: 02/22/2026

Save doctors for later
Sign Up
Not sure about your diagnosis?
Check Your Symptoms
Already have a doctor?
Find A Second Opinion

MediFind found 633 doctor with experience in Peptic Ulcer near Diamond Bar, CA. Of these, 543 are Experienced, 86 are Advanced and 4 are Distinguished.

Location
LocationClose
633 providers found
    Distinguished in Peptic Ulcer
    General Surgery
    Distinguished in Peptic Ulcer
    General Surgery

    Caduceus Medical Group

    18200 Yorba Linda Blvd, Suite 104, 
    Yorba Linda, CA 
     (7.8 miles away)
    Experience:
    42+ years
    Languages Spoken:
    English

    Felix Gaw is a General Surgeon in Yorba Linda, California. Dr. Gaw has been practicing medicine for over 42 years and is rated as a Distinguished provider by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Cellulitis, Peptic Ulcer, Necrosis, Lymphadenectomy, and Hernia Surgery.

    Experienced in Peptic Ulcer
    Pediatrics | Internal Medicine
    Experienced in Peptic Ulcer
    Pediatrics | Internal Medicine
    2707 South Diamond Bar Boulevard, Suite 104, 
    Diamond Bar, CA 
     (1.2 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English
    Offers Telehealth

    Jonathan Ou is a primary care provider, practicing in Pediatrics and Internal Medicine in Diamond Bar, California. Dr. Ou has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Osteomyelitis in Children, High Cholesterol, Febrile Neutropenia, and Vitamin D Deficiency.

    Experienced in Peptic Ulcer
    Experienced in Peptic Ulcer
    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 Experienced provider by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Hiatal Hernia, Hernia, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Gastrectomy. Dr. Bildzukewicz is currently accepting new patients.

    Learn about our expert tiers
    Experienced in Peptic Ulcer
    Pediatrics | Internal Medicine
    Experienced in Peptic Ulcer
    Pediatrics | Internal Medicine
    15855 Pomona Rincon Road, 
    Chino Hills, CA 
     (4.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Vince Cacho is a primary care provider, practicing in Pediatrics and Internal Medicine in Chino Hills, California. Dr. Cacho is rated as an Experienced provider by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Vitamin D Deficiency, High Cholesterol, Acne, and Sitosterolemia. Dr. Cacho is currently accepting new patients.

    Experienced in Peptic Ulcer
    Vascular Surgery
    Experienced in Peptic Ulcer
    Vascular Surgery
    2720 N Harbor Blvd Ste 140, 
    Fullerton, CA 
     (9.1 miles away)
    Languages Spoken:
    English

    George Pisimisis is a Vascular Surgeon in Fullerton, California. Dr. Pisimisis is rated as an Experienced provider by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Thoracic Aortic Aneurysm, Abdominal Aortic Aneurysm (AAA), Carotid Artery Disease, Stent Placement, and Angioplasty.

    Advanced in Peptic Ulcer
    Family Medicine
    Advanced in Peptic Ulcer
    Family Medicine

    Providence Urgent Care-Chino Hills

    15855 Pomona Rincon Rd, 
    Chino Hills, CA 
     (4.9 miles away)
    Languages Spoken:
    English

    Scott Vaudrey is a primary care provider, practicing in Family Medicine in Chino Hills, California. Dr. Vaudrey is rated as an Advanced provider by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Acute Cystitis, Cellulitis, Peptic Ulcer, and Necrosis.

    Advanced in Peptic Ulcer
    General Practice | Internal Medicine
    Advanced in Peptic Ulcer
    General Practice | Internal Medicine

    Office

    1840 N Hacienda Blvd Ste 6, 
    La Puente, CA 
     (7.5 miles away)
    Languages Spoken:
    English

    Jesus Arenas is a primary care provider, practicing in General Practice and Internal Medicine in La Puente, California. Dr. Arenas is rated as an Advanced provider by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Arthritis, Hypertensive Heart Disease, Enlarged Liver, and Type 2 Diabetes (T2D).

    Dennis J. Ponzio
    Experienced in Peptic Ulcer
    Family Medicine | Pediatrics
    Experienced in Peptic Ulcer
    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 Peptic Ulcer. His top areas of expertise are High Cholesterol, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension.

    Distinguished in Peptic Ulcer
    Distinguished in Peptic Ulcer

    Alexander A Maglunog MD Inc

    1250 S Sunset Ave, 
    West Covina, CA 
     (8.7 miles away)
    Experience:
    49+ years
    Languages Spoken:
    English

    Alexander Maglunog is a General Surgeon in West Covina, California. Dr. Maglunog has been practicing medicine for over 49 years and is rated as a Distinguished provider by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Cellulitis, Peptic Ulcer, Gallbladder Disease, Gastrostomy, and Small Bowel Resection.

    Laleh G. Melstrom
    Experienced in Peptic Ulcer
    General Surgery | Surgical Oncology
    Experienced in Peptic Ulcer
    General Surgery | Surgical Oncology

    City Of Hope Medical Foundation

    1500 Duarte Rd, 
    Duarte, CA 
     (12.8 miles away)
    Experience:
    22+ years
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    A talented surgeon and award-winning instructor and researcher, Laleh G. Melstrom, M.D., M.S., joined City of Hope, attracted by the opportunity to help develop breakthrough cures and treatments. Educated at Johns Hopkins University, Dr. Melstrom received her medical degree at Cornell Medical College in New York City, continuing her training at Northwestern Memorial Hospital in Chicago and New York's Memorial Sloan-Kettering Cancer Center. She held professorships at both Cornell and Robert Wood Johnson Medical School, before arriving in California. Dr Melstrom is certified in robotic surgery and specializes in the treatment of cancers of the liver, pancreas, melanoma and sarcoma. She has published over 120 scholarly articles and is a sought-after speaker at national and international conferences. Expertise: Liver Cancer, Pancreas Cancer, Metastatic Colon or Rectal Cancer to Liver, Hepatic Artery Infusion Pump, Cholangiocarcinoma, Neuroendocrine Tumors, Gallbladder Cancer, Melanoma, Sarcomas, Robotic SurgeryResearch Areas: Metastatic CRC, Melanoma, Bile Duct Cancer, Liver Cancer. Dr. Melstrom is rated as an Experienced provider by MediFind in the treatment of Peptic Ulcer. Her top areas of expertise are Pancreatic Cancer, Neuroendocrine Tumor, Cholangiocarcinoma (Bile Duct Cancer), Pancreatectomy, and Hepatectomy.

    Experienced in Peptic Ulcer
    Internal Medicine
    Experienced in Peptic Ulcer
    Internal Medicine

    Bill Coker DDS

    1111 Grand Ave, 
    Diamond Bar, CA 
     (0.1 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English
    Offers Telehealth

    George Mousa is a primary care provider, practicing in Internal Medicine in Diamond Bar, California. Dr. Mousa has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Atypical Pneumonia, Hospital-Acquired Pneumonia, Acute Kidney Failure, and Pneumonia.

    Experienced in Peptic Ulcer
    Family Medicine
    Experienced in Peptic Ulcer
    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 Peptic Ulcer. His top areas of expertise are Hypertensive Heart Disease, Enlarged Liver, High Cholesterol, and Type 2 Diabetes (T2D).

    Experienced in Peptic Ulcer
    Internal Medicine
    Experienced in Peptic Ulcer
    Internal Medicine
    1111 Grand Avenue, Suite L, 
    Diamond Bar, CA 
     (1.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Alaa Hajal is a primary care provider, practicing in Internal Medicine in Diamond Bar, California. Dr. Hajal is rated as an Experienced provider by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Sepsis, Peptic Ulcer, Necrosis, and Acute Pancreatitis. Dr. Hajal is currently accepting new patients.

    Experienced in Peptic Ulcer
    Internal Medicine
    Experienced in Peptic Ulcer
    Internal Medicine
    920 North Diamond Bar Boulevard, 
    Diamond Bar, CA 
     (1.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Steve Chan is a primary care provider, practicing in Internal Medicine in Diamond Bar, California. Dr. Chan is rated as an Experienced provider by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Chronic Kidney Disease, Irregular Sleep-Wake Syndrome, Pneumonia, Gastrostomy, and Fasciotomy. Dr. Chan is currently accepting new patients.

    Experienced in Peptic Ulcer
    Family Medicine | Geriatrics
    Experienced in Peptic Ulcer
    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 Peptic Ulcer. His top areas of expertise are Type 2 Diabetes (T2D), Osteomyelitis in Children, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.

    Experienced in Peptic Ulcer
    Family Medicine
    Experienced in Peptic Ulcer
    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 Peptic Ulcer. His top areas of expertise are High Cholesterol, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), Sciatica, and COVID-19. Dr. Lin is currently accepting new patients.

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

    Patrick Bachoura is a primary care provider, practicing in Family Medicine in Diamond Bar, California. Dr. Bachoura is rated as an Experienced provider by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Cerebellar Multiple System Atrophy, Hepatocerebral Degeneration, Chronic Pain, and Osteomyelitis in Children. Dr. Bachoura is currently accepting new patients.

    Experienced in Peptic Ulcer
    Internal Medicine
    Experienced in Peptic Ulcer
    Internal Medicine

    Optum - Diamond Bar

    750 N Diamond Bar Blvd, 
    Diamond Bar, CA 
     (2.2 miles away)
    Experience:
    23+ years
    Languages Spoken:
    English
    Offers Telehealth

    Lorindha Argudo is a primary care provider, practicing in Internal Medicine in Diamond Bar, California. Dr. Argudo has been practicing medicine for over 23 years and is rated as an Experienced provider by MediFind in the treatment of Peptic Ulcer. Her top areas of expertise are Osteomyelitis in Children, High Cholesterol, Type 2 Diabetes (T2D), and Glucocorticoid-Remediable Aldosteronism.

    Experienced in Peptic Ulcer
    Family Medicine | Internal Medicine
    Experienced in Peptic Ulcer
    Family Medicine | Internal Medicine

    Jonah Medical Group, Inc

    20627 Golden Springs Dr, 
    Diamond Bar, CA 
     (2.5 miles away)
    Experience:
    14+ years
    Languages Spoken:
    English
    Offers Telehealth

    Jun Chung is a primary care provider, practicing in Internal Medicine and Family Medicine in Diamond Bar, California. Dr. Chung has been practicing medicine for over 14 years and is rated as an Experienced provider by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Shingles, Familial Combined Hyperlipidemia, Xanthoma, Endoscopy, and Pacemaker Implantation.

    Experienced in Peptic Ulcer
    Family Medicine
    Experienced in Peptic Ulcer
    Family Medicine

    Premier Family Medicine Associates, Inc

    2140 Grand Ave, Suite 125, 
    Chino Hills, CA 
     (3.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Jesse Cheung is a primary care provider, practicing in Family Medicine in Chino Hills, California. Dr. Cheung is rated as an Experienced provider by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Type 2 Diabetes (T2D), Obesity, Sepsis, and Glucocorticoid-Remediable Aldosteronism.

    Showing 1-20 of 633

    Last Updated: 02/22/2026

    What is the definition of Peptic Ulcer?

    A peptic ulcer is an open sore or raw area in the lining of the stomach (gastric ulcer) or in the first part of the small intestine (duodenal ulcer).

    There are two types of peptic ulcers:

    • Gastric ulcer -- occurs in the stomach
    • Duodenal ulcer -- occurs in the first part of the small intestine

    When should I see a Peptic Ulcer 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 Peptic Ulcer 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 Peptic Ulcer 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 Peptic Ulcer 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 Peptic Ulcer 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 Peptic Ulcer doctor search results page. 

    Why is it important to get a second opinion from a different Peptic Ulcer 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 Peptic Ulcer 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 Peptic Ulcer 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 Peptic Ulcer 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 Peptic Ulcer doctors near Diamond Bar, CA?

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

    Look for the filter feature on the left-side of the Peptic Ulcer 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 

    Read more about our Content Policy

    More Peptic Ulcer Doctors by city