The 20 Best Homocystinuria Doctors Near Me in Orange, CA

Find the Top Homocystinuria Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 50 doctor with experience in Homocystinuria near Orange, CA. Of these, 35 are Experienced, 14 are Advanced and 1 are Distinguished.

Location
LocationClose
50 providers found
    Distinguished in Homocystinuria
    General Practice
    Distinguished in Homocystinuria
    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. She has been practicing medicine for over 44 years. Dr. Ellithorpe is rated as a Distinguished provider by MediFind in the treatment of Homocystinuria. 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 Homocystinuria
    Medical Genetics
    Experienced in Homocystinuria
    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 practicing medicine in Orange, California. Dr. Chapel is rated as an Experienced provider by MediFind in the treatment of Homocystinuria. She is also highly rated in 20 other conditions, according to our data. Her clinical expertise encompasses CLN4 Disease, CLN2 Disease, CLN3 Disease, and CLN5 Disease. Dr. Chapel is currently accepting new patients.

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

    Richard Chang is a Medical Genetics provider practicing medicine in Orange, California. Dr. Chang is rated as an Experienced provider by MediFind in the treatment of Homocystinuria. He is also highly rated in 156 other conditions, according to our data. His clinical expertise encompasses Phenylketonuria (PKU), Maternal Hyperphenylalaninemia, Arginase Deficiency, and Urea Cycle Disorders (UCD). Dr. Chang is currently accepting new patients.

    Learn about our expert tiers
    Advanced in Homocystinuria
    Internal Medicine
    Advanced in Homocystinuria
    Internal Medicine

    Optum - Chapman

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

    Thomas Hryniewicki is a primary care provider, practicing in Internal Medicine in Orange, California. He has been practicing medicine for over 44 years. Dr. Hryniewicki is rated as an Advanced provider by MediFind in the treatment of Homocystinuria. He is also highly rated in 43 other conditions, according to our data. His clinical expertise encompasses Purpura, Autoerythrocyte Sensitivity, Gardner-Diamond Syndrome, and Cirrhosis. Dr. Hryniewicki is board certified in American Board Of Internal Medicine.

    Advanced in Homocystinuria
    Internal Medicine
    Advanced in Homocystinuria
    Internal Medicine
    1240 East Chapman Avenue, 
    Orange, CA 
     (0.6 miles away)
    Languages Spoken:
    English

    Pravin Sharma is a primary care provider, practicing in Internal Medicine in Orange, California. Dr. Sharma is rated as an Advanced provider by MediFind in the treatment of Homocystinuria. He is also highly rated in 27 other conditions, according to our data. His clinical expertise encompasses Heart Murmurs, Sitosterolemia, High Cholesterol, and Nasal Flaring.

    Advanced in Homocystinuria
    Family Medicine
    Advanced in Homocystinuria
    Family Medicine

    Popular Medical Clinic Inc

    420 S Bristol St, 
    Santa Ana, CA 
     (3.6 miles away)
    Experience:
    26+ years
    Languages Spoken:
    English

    Jose Cilliani is a primary care provider, practicing in Family Medicine in Santa Ana, California. He has been practicing medicine for over 26 years. Dr. Cilliani is rated as an Advanced provider by MediFind in the treatment of Homocystinuria. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Vitamin D Deficiency, Osteomyelitis in Children, Homocystinuria, and Methylmalonic Acidemia with Homocystinuria. Dr. Cilliani is board certified in American Board Of Family Medicine.

    Experienced in Homocystinuria
    Family Medicine
    Experienced in Homocystinuria
    Family Medicine
    845 East Chapman Avenue, 
    Orange, CA 
     (0.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Hal Shimazu is a primary care provider, practicing in Family Medicine in Orange, California. Dr. Shimazu is rated as an Experienced provider by MediFind in the treatment of Homocystinuria. He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Cirrhosis, Purpura, and Autoerythrocyte Sensitivity. Dr. Shimazu is currently accepting new patients.

    Experienced in Homocystinuria
    Family Medicine
    Experienced in Homocystinuria
    Family Medicine

    Pavilion Family Physicians

    1140 W La Veta Ave, 
    Orange, CA 
     (0.8 miles away)
    Experience:
    36+ years
    Languages Spoken:
    English

    Catherine Garcia is a primary care provider, practicing in Family Medicine in Orange, California. She has been practicing medicine for over 36 years. Dr. Garcia is rated as an Experienced provider by MediFind in the treatment of Homocystinuria. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Type 2 Diabetes (T2D), Osteomyelitis in Children, Hypertension, High Cholesterol, and Carotid Artery Surgery. Dr. Garcia is board certified in American Board Of Family Medicine.

    Experienced in Homocystinuria
    Medical Genetics
    Experienced in Homocystinuria
    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 practicing medicine in Orange, California. Dr. Al-Hertani is rated as an Experienced provider by MediFind in the treatment of Homocystinuria. She is also highly rated in 62 other conditions, according to our data. Her clinical expertise encompasses Von Gierke Disease, Classic Galactosemia, Phosphoglycerate Mutase Deficiency, and Glycogen Storage Disease Type 7. Dr. Al-Hertani is currently accepting new patients.

    Experienced in Homocystinuria
    Internal Medicine
    Experienced in Homocystinuria
    Internal Medicine

    Uc Irvine Hospitalist Program

    101 The City Dr S, 
    Orange, CA 
     (2.0 miles away)
    Languages Spoken:
    English

    Nicole Chow is a primary care provider, practicing in Internal Medicine in Orange, California. Dr. Chow is rated as an Experienced provider by MediFind in the treatment of Homocystinuria. Her clinical expertise encompasses Homocystinuria, Methylmalonic Acidemia with Homocystinuria, Acne, and Cirrhosis.

    Experienced in Homocystinuria
    Medical Genetics | Pediatrics
    Experienced in Homocystinuria
    Medical Genetics | Pediatrics

    Uc Regents Uci Dept Of Pediatrics

    101 The City Dr S, 
    Orange, CA 
     (2.0 miles away)
    Languages Spoken:
    English

    Natalie Gallant is a Medical Genetics specialist and a Pediatrics provider practicing medicine in Orange, California. Dr. Gallant is rated as an Experienced provider by MediFind in the treatment of Homocystinuria. She is also highly rated in 98 other conditions, according to our data. Her clinical expertise encompasses Chromosome 8p Deletion, Chromosome 6q Duplication, Microcephaly, and Microcephaly Deafness Syndrome.

    Experienced in Homocystinuria
    Internal Medicine
    Experienced in Homocystinuria
    Internal Medicine

    Optum - Orange

    2540 N Santiago Blvd, 
    Orange, CA 
     (3.2 miles away)
    Experience:
    34+ years
    Languages Spoken:
    English
    Offers Telehealth

    James Burris is a primary care provider, practicing in Internal Medicine in Orange, California. He has been practicing medicine for over 34 years. Dr. Burris is rated as an Experienced provider by MediFind in the treatment of Homocystinuria. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Familial Combined Hyperlipidemia, Xanthoma, Cirrhosis, and High Cholesterol. Dr. Burris is board certified in American Board Of Family Medicine.

    Experienced in Homocystinuria
    Internal Medicine
    Experienced in Homocystinuria
    Internal Medicine

    Office

    14411 Brookhurst St Ste D, 
    Garden Grove, CA 
     (4.7 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Philip Lynn is a primary care provider, practicing in Internal Medicine in Garden Grove, California. Dr. Lynn is rated as an Experienced provider by MediFind in the treatment of Homocystinuria. His clinical expertise encompasses Homocystinuria, Methylmalonic Acidemia with Homocystinuria, Inborn Amino Acid Metabolism Disorder, and Type 2 Diabetes (T2D).

    Advanced in Homocystinuria
    Internal Medicine
    Advanced in Homocystinuria
    Internal Medicine

    Brandon Richland MD Inc.

    9900 Talbert Ave, 
    Fountain Valley, CA 
     (8.3 miles away)
    Languages Spoken:
    English

    Victor Lin is a primary care provider, practicing in Internal Medicine in Fountain Valley, California. Dr. Lin is rated as an Advanced provider by MediFind in the treatment of Homocystinuria. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Homocystinuria, Methylmalonic Acidemia with Homocystinuria, Inborn Amino Acid Metabolism Disorder, and Chronic B-Cell Leukemia (CBCL).

    Advanced in Homocystinuria
    Internal Medicine
    Advanced in Homocystinuria
    Internal Medicine

    Office

    9900 Talbert Ave Ste 302, 
    Fountain Valley, CA 
     (8.3 miles away)
    Languages Spoken:
    English

    Douglas Mcconnaughey is a primary care provider, practicing in Internal Medicine in Fountain Valley, California. Dr. Mcconnaughey is rated as an Advanced provider by MediFind in the treatment of Homocystinuria. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Homocystinuria, Methylmalonic Acidemia with Homocystinuria, Inborn Amino Acid Metabolism Disorder, and Cirrhosis.

    Advanced in Homocystinuria
    Internal Medicine
    Advanced in Homocystinuria
    Internal Medicine

    Office

    9900 Talbert Ave Ste 302, 
    Fountain Valley, CA 
     (8.3 miles away)
    Languages Spoken:
    English

    Tamara Fogarty is a primary care provider, practicing in Internal Medicine in Fountain Valley, California. Dr. Fogarty is rated as an Advanced provider by MediFind in the treatment of Homocystinuria. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Homocystinuria, Methylmalonic Acidemia with Homocystinuria, Hypoparathyroidism, and Inborn Amino Acid Metabolism Disorder.

    Advanced in Homocystinuria
    Internal Medicine
    Advanced in Homocystinuria
    Internal Medicine

    Optum - Weir Canyon

    781 S Weir Canyon Rd, 
    Anaheim, CA 
     (8.4 miles away)
    Experience:
    12+ years
    Languages Spoken:
    English
    Offers Telehealth

    Pratik Gandhi is a primary care provider, practicing in Internal Medicine in Anaheim, California. He has been practicing medicine for over 12 years. Dr. Gandhi is rated as an Advanced provider by MediFind in the treatment of Homocystinuria. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Hypothyroidism, High Cholesterol, Obesity in Children, and Multiple Carboxylase Deficiency. Dr. Gandhi is board certified in American Board Of Family Medicine.

    Experienced in Homocystinuria
    Family Medicine
    Experienced in Homocystinuria
    Family Medicine

    Khanh Bao Nguyen MD Inc

    13830 Brookhurst St, 
    Garden Grove, CA 
     (5.9 miles away)
    Experience:
    30+ years
    Languages Spoken:
    English

    Khanh Nguyen is a primary care provider, practicing in Family Medicine in Garden Grove, California. He has been practicing medicine for over 30 years. Dr. Nguyen is rated as an Experienced provider by MediFind in the treatment of Homocystinuria. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Vitamin D Deficiency, Osteomyelitis in Children, High Cholesterol, and Type 2 Diabetes (T2D). Dr. Nguyen is board certified in American Board Of Family Medicine.

    Experienced in Homocystinuria
    Internal Medicine
    Experienced in Homocystinuria
    Internal Medicine

    Omid Vesal MD Medical Corporation

    2500 Alton Pkwy Ste 101, 
    Irvine, CA 
     (6.0 miles away)
    Languages Spoken:
    English

    Omid Vesal is a primary care provider, practicing in Internal Medicine in Irvine, California. Dr. Vesal is rated as an Experienced provider by MediFind in the treatment of Homocystinuria. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Dehydration, Pneumonia, Androgen Insensitivity Syndrome, and Neuralgia.

    Experienced in Homocystinuria
    Internal Medicine
    Experienced in Homocystinuria
    Internal Medicine

    Bangsun J Kim

    2500 Alton Pkwy, 
    Irvine, CA 
     (6.8 miles away)
    Experience:
    45+ years
    Languages Spoken:
    English
    Offers Telehealth

    Bang Kim is a primary care provider, practicing in Internal Medicine in Irvine, California. He has been practicing medicine for over 45 years. Dr. Kim is rated as an Experienced provider by MediFind in the treatment of Homocystinuria. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Osteomyelitis in Children, Non-Alcoholic Fatty Liver Disease, Chronic Idiopathic Constipation (CIC), and Visceromegaly. Dr. Kim is board certified in American Board Of Internal Medicine.

    Showing 1-20 of 50

    Last Updated: 04/28/2026

    What is the definition of Homocystinuria?

    Homocystinuria is a genetic disorder that affects the metabolism of the amino acid methionine. Amino acids are the building blocks of all proteins in the body.

    When should I see a Homocystinuria 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 Homocystinuria 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 Homocystinuria 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 Homocystinuria 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 Homocystinuria 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 Homocystinuria doctor search results page. 

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

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

    Look for the filter feature on the left-side of the Homocystinuria 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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