The 20 Best Methylmalonic Acidemia Doctors Near Me in Orange, CA

Find the Top Methylmalonic Acidemia Experts and Specialists

The 20 Best Methylmalonic Acidemia Doctors near Orange, 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 10 doctor with experience in Methylmalonic Acidemia near Orange, CA. Of these, 8 are Experienced and 2 are Advanced.

Location
LocationClose
10 providers found
    Advanced in Methylmalonic Acidemia
    Medical Genetics
    Advanced in Methylmalonic Acidemia
    Medical Genetics
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Richard Chang is a Medical Genetics provider in Orange, California. Dr. Chang is rated as an Advanced provider by MediFind in the treatment of Methylmalonic Acidemia. His top areas of expertise are Phenylketonuria (PKU), Maternal Hyperphenylalaninemia, Adrenoleukodystrophy (ALD), and Citrullinemia. Dr. Chang is currently accepting new patients.

    Raymond Y. Wang
    Experienced in Methylmalonic Acidemia
    Medical Genetics
    Experienced in Methylmalonic Acidemia
    Medical Genetics
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English

    Raymond Wang is a Medical Genetics provider in Orange, California. Dr. Wang is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia. His top areas of expertise are Mucopolysaccharidoses (MPS), Mucopolysaccharidosis Type 7 (MPS VII, Sly Syndrome), Mucopolysaccharidosis Type 1 (MPS I, Hurler Syndrome), Pompe Disease, and Adenoidectomy.

    Experienced in Methylmalonic Acidemia
    Medical Genetics
    Experienced in Methylmalonic Acidemia
    Medical Genetics
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Cristel Chapel is a Medical Genetics provider in Orange, California. Dr. Chapel is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia. Her top areas of expertise are CLN1 Disease, CLN5 Disease, CLN2 Disease, and CLN3 Disease. Dr. Chapel is currently accepting new patients.

    Learn about our expert tiers
    Experienced in Methylmalonic Acidemia
    Medical Genetics
    Experienced in Methylmalonic Acidemia
    Medical Genetics
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Changrui Xiao is a Medical Genetics provider in Orange, California. Dr. Xiao is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia. His top areas of expertise are Glutaric Acidemia Type 2, Retinopathy Pigmentary Mental Retardation, Adrenoleukodystrophy (ALD), and X-Linked Creatine Deficiency. Dr. Xiao is currently accepting new patients.

    Experienced in Methylmalonic Acidemia
    Medical Genetics
    Experienced in Methylmalonic Acidemia
    Medical Genetics
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Jose Abdenur is a Medical Genetics provider in Orange, California. Dr. Abdenur is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia. His top areas of expertise are Von Gierke Disease, Glycogen Storage Disease Type 3, Hyperlysinemia, and Glutaric Acidemia Type 1. Dr. Abdenur is currently accepting new patients.

    Advanced in Methylmalonic Acidemia
    Medical Genetics
    Advanced in Methylmalonic Acidemia
    Medical Genetics
    1201 W La Veta Ave, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Walla Al-Hertani is a Medical Genetics provider in Orange, California. Dr. Al-Hertani is rated as an Advanced provider by MediFind in the treatment of Methylmalonic Acidemia. Her top areas of expertise are Von Gierke Disease, Classic Galactosemia, Glycogen Storage Disease Type 7, and Glycogen Storage Disease Type 0. Dr. Al-Hertani is currently accepting new patients.

    Experienced in Methylmalonic Acidemia
    Family Medicine
    Experienced in Methylmalonic Acidemia
    Family Medicine

    Optum - Chapman

    845 E Chapman Ave, 
    Orange, CA 
     (0.6 miles away)
    Experience:
    42+ years
    Languages Spoken:
    English

    Annette Bernhut is a primary care provider, practicing in Family Medicine in Orange, California. Dr. Bernhut has been practicing medicine for over 42 years and is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia. Her top areas of expertise are Light Chain Deposition Disease (LCDD), Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcus Infections, IgG4-Related Disease, and MAGIC Syndrome.

    Experienced in Methylmalonic Acidemia
    General Practice
    Experienced in Methylmalonic Acidemia
    General Practice

    Tustin Longevity Center

    13422 Newport Ave Ste L, 
    Tustin, CA 
     (4.3 miles away)
    Experience:
    44+ years
    Languages Spoken:
    English
    Offers Telehealth

    Rita Ellithorpe is a primary care provider, practicing in General Practice in Tustin, California. Dr. Ellithorpe has been practicing medicine for over 44 years and is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia. Her top areas of expertise are Heavy Metal Poisoning, Menopause, Homocystinuria, and Methylmalonic Acidemia with Homocystinuria.

    Experienced in Methylmalonic Acidemia
    Internal Medicine
    Experienced in Methylmalonic Acidemia
    Internal Medicine

    Kaiser Permanente Brea Medical Offices

    1900 E Lambert Rd, 
    Brea, CA 
     (9.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Tanveer Hussain is a primary care provider, practicing in Internal Medicine in Brea, California. Dr. Hussain is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia. Her top areas of expertise are Methylmalonic Acidemia and Methylmalonyl Coenzyme A Mutase Deficiency. Dr. Hussain is currently accepting new patients.

    Experienced in Methylmalonic Acidemia
    Experienced in Methylmalonic Acidemia

    William R. Shankle MD Inc.

    3900 W Coast Hwy Ste 310, 
    Newport Beach, CA 
     (12.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    William Shankle is a Neurologist in Newport Beach, California. Dr. Shankle is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia. His top areas of expertise are Alzheimer's Disease, Memory Loss, Cerebellar Degeneration, and Dementia.

    Showing 1-10 of 10

    Last Updated: 02/22/2026

    What is the definition of Methylmalonic Acidemia?

    Methylmalonic acidemia is a condition in which the body cannot break down certain proteins and fats. The result is a buildup of a substance called methylmalonic acid in the blood. This condition is passed down through families.

    It is one of several conditions called an "inborn error of metabolism."

    When should I see a Methylmalonic Acidemia doctor near Orange, 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 Methylmalonic Acidemia doctor near Orange, 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 Methylmalonic Acidemia doctors near Orange, 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 Methylmalonic Acidemia doctors near Orange, 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 Methylmalonic Acidemia doctor near Orange, 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 Methylmalonic Acidemia doctor search results page. 

    Why is it important to get a second opinion from a different Methylmalonic Acidemia 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 Methylmalonic Acidemia doctor near Orange, 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 Methylmalonic Acidemia 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 Methylmalonic Acidemia 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 Methylmalonic Acidemia doctors near Orange, CA?

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

    Look for the filter feature on the left-side of the Methylmalonic Acidemia 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 Methylmalonic Acidemia Doctors by city