The 20 Best Dihydropteridine Reductase Deficiency Doctors Near Me in Orange, CA

Find the Top Dihydropteridine Reductase Deficiency Experts and Specialists

Last Updated: 06/30/2026

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MediFind found 30 doctor with experience in Dihydropteridine Reductase Deficiency near Orange, CA. Of these, 20 are Experienced and 10 are Advanced.

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30 providers found
    Advanced in Dihydropteridine Reductase Deficiency
    Medical Genetics
    Advanced in Dihydropteridine Reductase Deficiency
    Medical Genetics
    Referral may be required
    1201 West La Veta Avenue, 
    Orange, CA 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Richard Chang is a Medical Genetics provider practicing medicine in Orange, California. Dr. Chang is rated as an Advanced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. He is also highly rated in 155 other conditions, according to our data. His clinical expertise encompasses Citrullinemia, Beta-Ketothiolase Deficiency, Biotinidase Deficiency, and Adrenoleukodystrophy (ALD). Dr. Chang is currently accepting new patients.

    Advanced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Advanced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Referral may be required

    UC Davis Medical Center MIND Institute

    2825 50th St, 
    Sacramento, CA 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Madelena Martin is a Medical Genetics specialist and a Pediatrics provider practicing medicine in Sacramento, California. Dr. Martin is rated as an Advanced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. She is also highly rated in 12 other conditions, according to our data. Her clinical expertise encompasses Pompe Disease, Danon Disease, Phenylketonuria (PKU), and Fabry Disease. Dr. Martin is board certified in Medical Genetics And Genomics Clin Biochemical Genetic and Medical Genetics And Genomics Clin Genetics & Genomic. Dr. Martin is currently accepting new patients.

    Experienced in Dihydropteridine Reductase Deficiency
    Medical Genetics
    Experienced in Dihydropteridine Reductase Deficiency
    Medical Genetics
    Referral may be required
    1201 West La Veta Avenue, 
    Orange, CA 
    Languages Spoken:
    English

    Raymond Wang is a Medical Genetics provider practicing medicine in Orange, California. Dr. Wang is rated as an Experienced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. He is also highly rated in 46 other conditions, according to our data. His clinical expertise encompasses Mucopolysaccharidosis Type 4 (MPS IV, Morquio Syndrome), Mucopolysaccharidosis Type 4A (MPS IVA, Morquio Syndrome Type A), Mucopolysaccharidoses (MPS), and Mucopolysaccharidosis Type 2 (MPS II, Hunter Syndrome).

    Learn about our expert tiers
    Experienced in Dihydropteridine Reductase Deficiency
    Medical Genetics
    Experienced in Dihydropteridine Reductase Deficiency
    Medical Genetics
    Referral may be required
    1201 West La Veta Avenue, 
    Orange, CA 
    Languages Spoken:
    English
    Accepting New Patients

    Cristel Chapel is a Medical Genetics provider practicing medicine in Orange, California. Dr. Chapel is rated as an Experienced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. She is also highly rated in 20 other conditions, according to our data. Her clinical expertise encompasses Batten Disease, CLN4 Disease, CLN2 Disease, and CLN3 Disease. Dr. Chapel is currently accepting new patients.

    Advanced in Dihydropteridine Reductase Deficiency
    Medical Genetics
    Advanced in Dihydropteridine Reductase Deficiency
    Medical Genetics
    Referral may be required

    USC Care Medical Group Inc

    1500 San Pablo St, 
    Los Angeles, CA 
    Languages Spoken:
    English

    Shoji Yano is a Medical Genetics provider practicing medicine in Los Angeles, California. Dr. Yano is rated as an Advanced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Phenylketonuria (PKU), Infantile Refsum Disease, Methylmalonic Acidemia, and Maternal Hyperphenylalaninemia.

    Advanced in Dihydropteridine Reductase Deficiency
    Pediatrics | Medical Genetics
    Advanced in Dihydropteridine Reductase Deficiency
    Pediatrics | Medical Genetics
    Referral may be required

    Lpch Medical Group Div Of Lucile

    725 Welch Rd, 
    Palo Alto, CA 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Gregory Enns is a Pediatrics specialist and a Medical Genetics provider practicing medicine in Palo Alto, California. Dr. Enns is rated as an Advanced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. He is also highly rated in 52 other conditions, according to our data. His clinical expertise encompasses Urea Cycle Disorders (UCD), Methylmalonic Acidemia, Arginase Deficiency, and Very Long-Chain Acyl-CoA Dehydrogenase (VLCAD) Deficiency. Dr. Enns is currently accepting new patients.

    Advanced in Dihydropteridine Reductase Deficiency
    Medical Genetics
    Advanced in Dihydropteridine Reductase Deficiency
    Medical Genetics
    Referral may be required

    Kaiser Permanente Los Angeles Medical Center - Genetics Department

    4700 W Sunset Blvd, 
    Los Angeles, CA 
    Languages Spoken:
    English
    Accepting New Patients

    Divya Vats is a Medical Genetics provider practicing medicine in Los Angeles, California. Dr. Vats is rated as an Advanced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. He is also highly rated in 24 other conditions, according to our data. His clinical expertise encompasses Adrenoleukodystrophy (ALD), Classic Galactosemia, Maternal Hyperphenylalaninemia, and Dihydropteridine Reductase Deficiency. Dr. Vats is currently accepting new patients.

    Advanced in Dihydropteridine Reductase Deficiency
    Medical Genetics
    Advanced in Dihydropteridine Reductase Deficiency
    Medical Genetics
    Referral may be required
    3505 Broadway, 
    Oakland, CA 
    Languages Spoken:
    English

    Bryce Mendelsohn is a Medical Genetics provider practicing medicine in Oakland, California. Dr. Mendelsohn is rated as an Advanced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Chromosome 10q Deletion, Chromosome 13q Duplication, Dihydropteridine Reductase Deficiency, and Maternal Hyperphenylalaninemia.

    Advanced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics | Geriatrics
    Advanced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics | Geriatrics
    Referral may be required

    Uc Regents

    200 Medical Plaza, 
    Los Angeles, CA 
    Languages Spoken:
    English

    Derek Wong is a Medical Genetics specialist and a Pediatrics provider practicing medicine in Los Angeles, California. Dr. Wong is rated as an Advanced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Von Gierke Disease, Argininosuccinic Aciduria, 3-Hydroxy-3-Methylglutaryl-CoA Lyase Deficiency, and Ornithine Translocase Deficiency.

    Advanced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Advanced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Referral may be required

    Lpch Medical Group Div Of Lucile

    725 Welch Rd, 
    Palo Alto, CA 
    Experience:
    18+ years
    Languages Spoken:
    English
    Offers Telehealth

    Chung Lee is a Medical Genetics specialist and a Pediatrics provider practicing medicine in Palo Alto, California. She has been practicing medicine for over 18 years. Dr. Lee is rated as an Advanced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. She is also highly rated in 44 other conditions, according to our data. Her clinical expertise encompasses Ornithine Transcarbamylase Deficiency, Ornithine Translocase Deficiency, Maple Syrup Urine Disease, and Carnitine Palmitoyltransferase 1 Deficiency.

    Advanced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Advanced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Referral may be required

    Southern California Permanente Medical Group

    4700 W Sunset Blvd, 
    Los Angeles, CA 
    Languages Spoken:
    English

    Moin Vera is a Medical Genetics specialist and a Pediatrics provider practicing medicine in Los Angeles, California. Dr. Vera is rated as an Advanced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Mucopolysaccharidosis Type 1 (MPS I, Hurler Syndrome), Mucopolysaccharidoses (MPS), Triple X Syndrome, and Chromosome 10q Deletion.

    Advanced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Advanced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Referral may be required

    Valley Childrens Medical Group

    1524 Mchenry Ave, Suite 550and570, 
    Modesto, CA 
    Languages Spoken:
    English
    Accepting New Patients

    David Dimmock is a Medical Genetics specialist and a Pediatrics provider practicing medicine in Modesto, California. Dr. Dimmock is rated as an Advanced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Phenylketonuria (PKU), Increased Head Circumference, Micrognathia, and Maternal Hyperphenylalaninemia. Dr. Dimmock is currently accepting new patients.

    Experienced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Experienced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Referral may be required

    Uc Regents Uci Dept Of Pediatrics

    101 The City Dr S, 
    Orange, CA 
    Languages Spoken:
    English
    Offers Telehealth

    Angela Myers is a Medical Genetics specialist and a Pediatrics provider practicing medicine in Orange, California. Dr. Myers is rated as an Experienced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Bowen-Conradi Syndrome, Costello Syndrome, Maternal Hyperphenylalaninemia, and Dihydropteridine Reductase Deficiency.

    Experienced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Experienced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Referral may be required
    260 International Cir, 
    San Jose, CA 
    Languages Spoken:
    English

    Joann Bergoffen is a Medical Genetics specialist and a Pediatrics provider practicing medicine in San Jose, California. Dr. Bergoffen is rated as an Experienced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. Her clinical expertise encompasses Dihydropteridine Reductase Deficiency, Maternal Hyperphenylalaninemia, and Phenylketonuria (PKU).

    Experienced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Experienced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Referral may be required
    550 16th Street, Box 0706, Fourth Floor, 
    San Francisco, CA 
    Languages Spoken:
    English

    Renata Gallagher is a Medical Genetics specialist and a Pediatrics provider practicing medicine in San Francisco, California. Dr. Gallagher is rated as an Experienced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. She is also highly rated in 18 other conditions, according to our data. Her clinical expertise encompasses Gaucher Disease Type 1, Gaucher Disease Type 3, Gaucher Disease, and Gaucher Disease Type 2.

    Experienced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Experienced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Referral may be required
    4700 W Sunset Blvd, First Floor, 
    Los Angeles, CA 
    Languages Spoken:
    English

    Rebecca Mardach is a Medical Genetics specialist and a Pediatrics provider practicing medicine in Los Angeles, California. Dr. Mardach is rated as an Experienced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Gaucher Disease Type 1, Gaucher Disease, Propionic Acidemia, and Farber Lipogranulomatosis.

    Experienced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Experienced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Referral may be required

    Permanente Medical Group Inc

    1600 Eureka Rd, 
    Roseville, CA 
    Languages Spoken:
    English

    Billur Moghaddam is a Medical Genetics specialist and a Pediatrics provider practicing medicine in Roseville, California. Dr. Moghaddam is rated as an Experienced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Molybdenum Cofactor Deficiency (MoCD), Ehlers-Danlos Syndrome (EDS), Glycogen Storage Disease Type 3, and Maternal Hyperphenylalaninemia.

    Experienced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Experienced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Referral may be required
    7920 Frost St, Ste 200, 
    San Diego, CA 
    Languages Spoken:
    English

    Lynne Bird is a Medical Genetics specialist and a Pediatrics provider practicing medicine in San Diego, California. Dr. Bird is rated as an Experienced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. She is also highly rated in 29 other conditions, according to our data. Her clinical expertise encompasses Angelman Syndrome, Prader-Willi Syndrome, VACTERL Association, and Mucolipidosis Type 4.

    Experienced in Dihydropteridine Reductase Deficiency
    Pediatrics | Medical Genetics
    Experienced in Dihydropteridine Reductase Deficiency
    Pediatrics | Medical Genetics
    Referral may be required

    Valley Childrens Medical Group

    1524 Mchenry Ave, Suite 550and570, 
    Modesto, CA 
    Languages Spoken:
    English
    Offers Telehealth

    Susan Winter is a Pediatrics specialist and a Medical Genetics provider practicing medicine in Modesto, California. Dr. Winter is rated as an Experienced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. She is also highly rated in 9 other conditions, according to our data. Her clinical expertise encompasses 3-Hydroxy-3-Methylglutaryl-CoA Lyase Deficiency, Argininosuccinic Aciduria, Primary Carnitine Deficiency, and Trimethylaminuria.

    Experienced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Experienced in Dihydropteridine Reductase Deficiency
    Medical Genetics | Pediatrics
    Referral may be required

    Uc Regents

    892 Aerovista Pl, Suite 210, 
    San Luis Obispo, CA 
    Experience:
    44+ years
    Languages Spoken:
    English, Hindi, Italian, Spanish
    Accepting New Patients
    Offers Telehealth

    Nicola Longo is a Medical Genetics specialist and a Pediatrics provider practicing medicine in San Luis Obispo, California. He has been practicing medicine for over 44 years. Dr. Longo is rated as an Experienced provider by MediFind in the treatment of Dihydropteridine Reductase Deficiency. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Megalencephalic Leukoencephalopathy with Subcortical Cysts, Multiple Sulfatase Deficiency, Gaucher Disease Type 1, and Gaucher Disease Type 2. Dr. Longo is currently accepting new patients.

    Showing 1-20 of 30

    Last Updated: 06/30/2026

    What is the definition of Dihydropteridine Reductase Deficiency?

    Dihydropteridine reductase deficiency (DHPR) is a severe form of hyperphenylalaninemia (high levels of the amino acid phenylalanine in the blood) due to impaired renewal of a substance known as tetrahydrobiopterin (BH4). Tetrahydrobiopterin normally helps process several amino acids, including phenylalanine, and it is also involved in the production of neurotransmitters. If little or no tetrahydrobiopterin is available to help process phenylalanine, this amino acid can build up in the blood and other tissues and the levels of neurotransmitters (dopamine, serotonin) and folate in cerebrospinal fluid are also decreased. This results in neurological symptoms such as psychomotor delay, low muscle tone (hypotonia), seizures, abnormal movements, too much salivation, and swallowing difficulties. DHPR deficiency is caused by genetic changes in the QDPR gene. It is inherited in an autosomal recessive manner.

    When should I see a Dihydropteridine Reductase 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 Dihydropteridine Reductase 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 does MediFind rank Dihydropteridine Reductase 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 Dihydropteridine Reductase 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 Dihydropteridine Reductase 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 Dihydropteridine Reductase Deficiency doctor search results page. 

    Why is it important to get a second opinion from a different Dihydropteridine Reductase 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 Dihydropteridine Reductase 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 Dihydropteridine Reductase 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 Dihydropteridine Reductase 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 Dihydropteridine Reductase Deficiency doctors near Orange, CA?

    Look for the filter feature on the left side of the Dihydropteridine Reductase 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 Dihydropteridine Reductase Deficiency doctor that offers video calls?

    Look for the filter feature on the left-side of the Dihydropteridine Reductase 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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