The 20 Best Nonalcoholic Steatohepatitis (NASH) Doctors Near Me in Fontana, CA

Find the Top Nonalcoholic Steatohepatitis (NASH) Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 190 doctor with experience in Nonalcoholic Steatohepatitis (NASH) near Fontana, CA. Of these, 49 are Experienced and 5 are Advanced.

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190 providers found
    George B. Saffouri
    Experienced in Nonalcoholic Steatohepatitis (NASH)
    Gastroenterology
    Experienced in Nonalcoholic Steatohepatitis (NASH)
    Gastroenterology

    San Bernardino Gastroenterology Associates

    2006 N Riverside Ave, Ste B, 
    Rialto, CA 
     (4.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    George Saffouri is a Gastroenterologist in Rialto, California. Dr. Saffouri is rated as an Experienced provider by MediFind in the treatment of Nonalcoholic Steatohepatitis (NASH). His top areas of expertise are Hemorrhoids, Diverticular Disease, Chronic Erosive Gastritis, Endoscopy, and Colonoscopy. Dr. Saffouri is currently accepting new patients.

    Endocrinology
    Endocrinology

    Kaiser Permanente Fontana

    9985 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Karen Kartun is an Endocrinologist in Fontana, California. Her top areas of expertise are Type 1 Diabetes (T1D), Non-Alcoholic Fatty Liver Disease, and Nonalcoholic Steatohepatitis (NASH).

    Pediatric Endocrinology
    Pediatric Endocrinology

    Kaiser Permanente Fontana

    9985 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Maria Lin is a Pediatric Endocrinologist in Fontana, California. Her top areas of expertise are Type 1 Diabetes (T1D), Newborn Jaundice, Adrenal Insufficiency Pediatric, and Short Stature (Growth Disorders).

    Learn about our expert tiers
    Endocrinology
    Endocrinology

    Southern California Permanente Medical Group

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English

    Eunice Chuang is an Endocrinologist in Fontana, California. Her top areas of expertise are Type 1 Diabetes (T1D), Thyroid Nodule, Hyperthyroidism, and Addison's Disease.

    Pediatric Endocrinology
    Pediatric Endocrinology

    Southern California Permanente Medical Group

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Ramin Mogadas is a Pediatric Endocrinologist in Fontana, California. His top areas of expertise are Precocious Puberty, Short Stature (Growth Disorders), Ovarian Overproduction of Androgens, and Type 1 Diabetes (T1D).

    Endocrinology
    Endocrinology

    Southern California Permanente Medical Group

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Dat Ha is an Endocrinologist in Fontana, California. His top areas of expertise are Type 1 Diabetes (T1D), Thyroid Nodule, Thyroid Storm, and Hyperthyroidism.

    Victor Guharoy
    Gastroenterology
    Gastroenterology

    San Bernardino Gastroenterology Associates, Inc.

    2006 N Riverside Ave, 
    Rialto, CA 
     (4.8 miles away)
    Experience:
    12+ years
    Languages Spoken:
    English

    Victor Guharoy is a Gastroenterologist in Rialto, California. Dr. Guharoy has been practicing medicine for over 12 years and is rated as an Experienced provider by MediFind in the treatment of Nonalcoholic Steatohepatitis (NASH). His top areas of expertise are Gastrointestinal Bleeding, Hemorrhoids, Diverticular Disease, Acute Pancreatitis, and Gastrectomy.

    Andrea S. Tieng
    Gastroenterology
    Gastroenterology

    Andrea S Tieng MD, Inc

    10801 Foothill Blvd, Ste 106, 
    Rancho Cucamonga, CA 
     (7.8 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. . Her top areas of expertise are Diverticular Disease, Familial Adenomatous Polyposis, Gastritis, Gastrectomy, and Endoscopy.

    Physician Assistant
    Physician Assistant
    16980 Foothill Blvd, 
    Fontana, CA 
     (1.0 miles away)
    Languages Spoken:
    English

    Miguel Garcia is a Physician Assistant in Fontana, California. His top areas of expertise are Non-Alcoholic Fatty Liver Disease and Nonalcoholic Steatohepatitis (NASH).

    Nurse Practitioner
    Nurse Practitioner

    Fontana Medical Center

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Nimfa Veloso is a Nurse Practitioner in Fontana, California. Ms. Veloso is rated as an Experienced provider by MediFind in the treatment of Nonalcoholic Steatohepatitis (NASH). Her top areas of expertise are Non-Alcoholic Fatty Liver Disease and Nonalcoholic Steatohepatitis (NASH).

    Gastroenterology
    Gastroenterology

    Fontana Medical Center

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Patricia Hsia is a Gastroenterologist in Fontana, California. Dr. Hsia is rated as an Experienced provider by MediFind in the treatment of Nonalcoholic Steatohepatitis (NASH). Her top areas of expertise are Hemorrhoids, Gastrointestinal Bleeding, Banti's Syndrome, Alcoholic Cirrhosis, and Endoscopy. Dr. Hsia is currently accepting new patients.

    Gastroenterology
    Gastroenterology

    Fontana Medical Center

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Blanca Viramontes is a Gastroenterologist in Fontana, California. Dr. Viramontes is rated as an Experienced provider by MediFind in the treatment of Nonalcoholic Steatohepatitis (NASH). Her top areas of expertise are Hemorrhoids, Diverticular Disease, Banti's Syndrome, Esophageal Varices, and Endoscopy.

    Gastroenterology
    Gastroenterology

    Fontana Medical Center

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Tommy Oei is a Gastroenterologist in Fontana, California. Dr. Oei is rated as an Experienced provider by MediFind in the treatment of Nonalcoholic Steatohepatitis (NASH). His top areas of expertise are Alcoholic Cirrhosis, Choledocholithiasis, Gallstones, Bile Duct Stricture, and Endoscopy. Dr. Oei is currently accepting new patients.

    Internal Medicine
    Internal Medicine

    Southern California Permanente Medical Group

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Jessica Hong is a primary care provider, practicing in Internal Medicine in Fontana, California. Dr. Hong is rated as an Experienced provider by MediFind in the treatment of Nonalcoholic Steatohepatitis (NASH). Her top areas of expertise are Hepatitis B, Esophageal Varices, Banti's Syndrome, and Diverticular Disease.

    Physician Assistant
    Physician Assistant

    Southern California Permanente Medical Group

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Paul Hanna is a Physician Assistant in Fontana, California. His top areas of expertise are Aseptic and Alopecic Nodules of Scalp (AANS), Inappropriate Sinus Tachycardia (IST), Non-Alcoholic Fatty Liver Disease, and Nonalcoholic Steatohepatitis (NASH).

    Nurse Practitioner
    Nurse Practitioner

    Southern California Permanente Medical Group

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Lucyana Panjaitan is a Nurse Practitioner in Fontana, California. Her top areas of expertise are Non-Alcoholic Fatty Liver Disease and Nonalcoholic Steatohepatitis (NASH).

    Nurse Practitioner
    Nurse Practitioner

    Southern California Permanente Medical Group

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Krystle Frazier is a Nurse Practitioner in Fontana, California. Her top areas of expertise are Respiratory Syncytial Virus (RSV) Infection, Eyelid Bump, Non-Alcoholic Fatty Liver Disease, and Nonalcoholic Steatohepatitis (NASH).

    Gastroenterology
    Gastroenterology

    Fontana Medical Center

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Michael Chan is a Gastroenterologist in Fontana, California. His top areas of expertise are Mallory-Weiss Syndrome, Esophageal Varices, Bile Duct Obstruction, Bile Acid Malabsorption, and Endoscopy. Dr. Chan is currently accepting new patients.

    Gastroenterology
    Gastroenterology

    Fontana Medical Center

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Alexander Han is a Gastroenterologist in Fontana, California. His top areas of expertise are Esophageal Varices, Hemorrhoids, Banti's Syndrome, Mallory-Weiss Syndrome, and Endoscopy. Dr. Han is currently accepting new patients.

    Gastroenterology
    Gastroenterology

    Southern California Permanente Medical Group

    9961 Sierra Ave, 
    Fontana, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Zhigang Song is a Gastroenterologist in Fontana, California. His top areas of expertise are Chronic Pancreatitis, Esophageal Varices, Hemorrhoids, Gallstones, and Endoscopy.

    Showing 1-20 of 190

    Last Updated: 04/28/2026

    What is the definition of Nonalcoholic Steatohepatitis (NASH)?

    Nonalcoholic steatohepatitis is an advanced stage of nonalcoholic fatty liver disease that occurs in individuals who do not abuse alcohol. In nonalcoholic steatohepatitis, a buildup of fat in the liver causes it to become inflamed and damaged.

    When should I see a Nonalcoholic Steatohepatitis (NASH) doctor near Fontana, 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 Nonalcoholic Steatohepatitis (NASH) doctor near Fontana, 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 Nonalcoholic Steatohepatitis (NASH) doctors near Fontana, 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 Nonalcoholic Steatohepatitis (NASH) doctors near Fontana, 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 Nonalcoholic Steatohepatitis (NASH) doctor near Fontana, 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 Nonalcoholic Steatohepatitis (NASH) doctor search results page. 

    Why is it important to get a second opinion from a different Nonalcoholic Steatohepatitis (NASH) 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 Nonalcoholic Steatohepatitis (NASH) doctor near Fontana, 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 Nonalcoholic Steatohepatitis (NASH) 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 Nonalcoholic Steatohepatitis (NASH) 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 Nonalcoholic Steatohepatitis (NASH) doctors near Fontana, CA?

    Look for the filter feature on the left side of the Nonalcoholic Steatohepatitis (NASH) 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 Nonalcoholic Steatohepatitis (NASH) doctor that offers video calls?

    Look for the filter feature on the left-side of the Nonalcoholic Steatohepatitis (NASH) 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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