The 20 Best Methylmalonyl Coenzyme A Mutase Deficiency Doctors Near Me in orange, CA

Find the Top Methylmalonyl Coenzyme A Mutase Deficiency Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 3 doctor with experience in Methylmalonyl Coenzyme A Mutase Deficiency near orange, CA. Of these, 3 are Experienced.

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3 providers found
    Experienced in Methylmalonyl Coenzyme A Mutase Deficiency
    Experienced in Methylmalonyl Coenzyme A Mutase Deficiency
    845 East Chapman Avenue, 
    Orange, CA 
     (0.6 miles away)
    714-997-2899
    Languages Spoken:
    English
    See accepted insurances

    Annette Bernhut-Caplin is a primary care provider, practicing in Family Medicine in Orange, California. Dr. Bernhut-Caplin is rated as an Experienced provider by MediFind in the treatment of Methylmalonyl Coenzyme A Mutase Deficiency. She is also highly rated in 10 other conditions, according to our data. Her clinical expertise encompasses Light Chain Deposition Disease (LCDD), Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcus Infections, MAGIC Syndrome, and IgG4-Related Disease. Dr. Bernhut-Caplin is board certified in American Osteopathic Board Of Family Practice.

    Experienced in Methylmalonyl Coenzyme A Mutase Deficiency

    Dr. Rita R. Ellithorpe
    General Practice
    Experienced in Methylmalonyl Coenzyme A Mutase Deficiency

    Dr. Rita R. Ellithorpe
    General Practice

    Tustin Longevity Center

    13422 Newport Ave Ste L, 
    Tustin, CA 
     (4.3 miles away)
    714-544-1521
    Experience:
    44+ years
    Languages Spoken:
    English
    See accepted insurances
    Offers Telehealth

    Rita Ellithorpe is a primary care provider, practicing in General Practice in Tustin, California. She has been practicing medicine for over 44 years. Dr. Ellithorpe is rated as an Experienced provider by MediFind in the treatment of Methylmalonyl Coenzyme A Mutase Deficiency. She is also highly rated in 28 other conditions, according to our data. Her clinical expertise encompasses Heavy Metal Poisoning, Menopause, Homocystinuria, and Methylmalonic Acidemia with Homocystinuria.

    Experienced in Methylmalonyl Coenzyme A Mutase Deficiency

    Dr. Tanveer F. Hussain
    Internal Medicine
    Experienced in Methylmalonyl Coenzyme A Mutase Deficiency

    Dr. Tanveer F. Hussain
    Internal Medicine

    Kaiser Permanente Brea Medical Offices

    1900 E Lambert Rd, 
    Brea, CA 
     (9.5 miles away)
    833-574-2273
    Languages Spoken:
    English
    See accepted insurances
    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 Methylmalonyl Coenzyme A Mutase Deficiency. Her clinical expertise encompasses Methylmalonyl Coenzyme A Mutase Deficiency and Methylmalonic Acidemia. Dr. Hussain is currently accepting new patients.

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    Last Updated: 09/26/2026

    What is the definition of Methylmalonyl Coenzyme A Mutase Deficiency?

    Methylmalonyl-Coenzyme A mutase deficiency (MCM deficiency) is a type of methylmalonic acidemia caused by having too little methylmalonyl-CoA mutase. Methylmalonyl-CoA mutase (MCM) is one of the special proteins (enzymes) needed to breakdown certain amino acids found in the food we eat. It is needed to breakdown certain fats too. When the amino acids and fats are not broken down normally, substances which are harmful to the body (including methylmalonic acid) build up and can damage the nervous system, kidneys and other organs. Symptoms of MCM deficiency usually begin in infancy or early childhood and may include tiredness (fatigue), vomiting, dehydration, weak muscle tone (hypotonia), fever, breathing trouble, frequent illnesses and infections, and increased bleeding and bruising. Long term complications include developmental delay, intellectual disability, enlarged liver (hepatomegaly), chronic kidney disease, inflammation of the pancreas (pancreatitis), and in severe cases coma and death. Methylmalonyl-Coenzyme A mutase deficiency (MCM deficiency) is caused by changess in the MUT gene which can cause no enzyme to be produced (MUT0) or less than normal amounts of the enzyme to be made (MUT-). The more working enzyme that is made, the less severe the symptoms will be. MCM deficiency is inherited in an autosomal recessive manner. Diagnosis is made based on symptoms, special blood tests and genetic testing. Unlike some types of methylmalonic acidurias, B12 supplements are not helpful.

    When should I see a Methylmalonyl Coenzyme A Mutase Deficiency 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 Methylmalonyl Coenzyme A Mutase Deficiency 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 do I find the best Methylmalonyl Coenzyme A Mutase Deficiency doctor near orange, CA?

    You can find a Methylmalonyl Coenzyme A Mutase Deficiency doctor in any of the 10 largest U.S. cities by clicking below:

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    How does MediFind rank Methylmalonyl Coenzyme A Mutase Deficiency 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 Methylmalonyl Coenzyme A Mutase Deficiency 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 Methylmalonyl Coenzyme A Mutase Deficiency 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 Methylmalonyl Coenzyme A Mutase Deficiency doctor search results page. 

    Why is it important to get a second opinion from a different Methylmalonyl Coenzyme A Mutase Deficiency 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 Methylmalonyl Coenzyme A Mutase Deficiency 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 Methylmalonyl Coenzyme A Mutase Deficiency 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 Methylmalonyl Coenzyme A Mutase Deficiency 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 Methylmalonyl Coenzyme A Mutase Deficiency doctors near orange, CA?

    Look for the filter feature on the left side of the Methylmalonyl Coenzyme A Mutase Deficiency 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 Methylmalonyl Coenzyme A Mutase Deficiency doctor that offers video calls?

    Look for the filter feature on the left-side of the Methylmalonyl Coenzyme A Mutase Deficiency 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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