The 20 Best Primary Immunodeficiency (PID) Doctors Near Me in Mission Viejo, CA

Find the Top Primary Immunodeficiency (PID) Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 61 doctor with experience in Primary Immunodeficiency (PID) near Mission Viejo, CA. Of these, 52 are Experienced, 8 are Advanced and 1 are Elite.

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61 providers found
    Elite in Primary Immunodeficiency (PID)
    Dermatology
    Elite in Primary Immunodeficiency (PID)
    Dermatology

    Gottschalk Medical Plaza-Dermatology

    1 Medical Plz Dr, 
    Irvine, CA 
     (11.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sudhir Gupta is a Dermatologist practicing medicine in Irvine, California. Dr. Gupta is rated as an Elite provider by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Primary Immunodeficiency (PID), Common Variable Immune Deficiency, X-Linked Agammaglobulinemia, and Immunodeficiency with Hyper IgM Type 1.

    Advanced in Primary Immunodeficiency (PID)
    Allergy and Immunology
    Advanced in Primary Immunodeficiency (PID)
    Allergy and Immunology

    Allergy And Asthma Assoc Of So Calif

    28202 Cabot Rd, 
    Laguna Niguel, CA 
     (3.2 miles away)
    Experience:
    30+ years
    Languages Spoken:
    English

    Warner Carr is an Allergy and Immunologist practicing medicine in Laguna Niguel, California. He has been practicing medicine for over 30 years. Dr. Carr is rated as an Advanced provider by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Allergic Rhinitis, Allergic Conjunctivitis, Sinusitis, and Conjunctivitis (Pink Eye). Dr. Carr is board certified in American Board Of Allergy & Immunology.

    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine
    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine

    MemorialCare Medical Group 55+ (Laguna Woods)

    24268 El Toro Rd, 
    Laguna Woods, CA 
     (3.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Kien-an Duong is a primary care provider, practicing in Internal Medicine in Laguna Woods, California. Dr. Duong is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Osteomyelitis in Children, High Cholesterol, and Cirrhosis. Dr. Duong is currently accepting new patients.

    Learn about our expert tiers
    Experienced in Primary Immunodeficiency (PID)
    Allergy and Immunology
    Experienced in Primary Immunodeficiency (PID)
    Allergy and Immunology

    Allergy And Asthma Assoc Of So Calif

    28202 Cabot Rd, 
    Laguna Niguel, CA 
     (3.2 miles away)
    Experience:
    57+ years
    Languages Spoken:
    English

    Mark Sugar is an Allergy and Immunologist practicing medicine in Laguna Niguel, California. He has been practicing medicine for over 57 years. Dr. Sugar is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Allergic Rhinitis, Sinusitis, Primary Immunodeficiency (PID), and Common Variable Immune Deficiency. Dr. Sugar is board certified in American Board Of Allergy & Immunology.

    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine
    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine

    Marwan Edris MD

    25283 Cabot Rd, 
    Laguna Hills, CA 
     (1.0 miles away)
    Experience:
    45+ years
    Languages Spoken:
    English

    Marwan Edris is a primary care provider, practicing in Internal Medicine in Laguna Hills, California. He has been practicing medicine for over 45 years. Dr. Edris is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Transient Familial Hyperbilirubinemia, Thyroid Dysgenesis, Congenital Hypothyroidism, and Newborn Jaundice.

    Experienced in Primary Immunodeficiency (PID)
    Experienced in Primary Immunodeficiency (PID)

    Ocean View Hematology/Oncology Medical Group

    26732 Crown Valley Pkwy Ste 475, 
    Mission Viejo, CA 
     (1.1 miles away)
    Languages Spoken:
    English

    Gabriel Carabulea is an Oncologist practicing medicine in Mission Viejo, California. Dr. Carabulea is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Pleuropulmonary Blastoma, Febrile Neutropenia, Hemochromatosis, and Chronic Familial Neutropenia.

    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine
    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine

    Saddleback Medical Group

    Laguna Hills, CA 
     (2.3 miles away)
    Languages Spoken:
    English

    Raymond Fernandez is a primary care provider, practicing in Internal Medicine in Laguna Hills, California. Dr. Fernandez is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His clinical expertise encompasses High Cholesterol, Hypothyroidism, Gastroesophageal Reflux Disease (GERD), and Type 2 Diabetes (T2D).

    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine
    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine

    Aco Saddleback

    Laguna Hills, CA 
     (2.3 miles away)
    Experience:
    21+ years
    Languages Spoken:
    English

    Hai Le is a primary care provider, practicing in Internal Medicine in Laguna Hills, California. He has been practicing medicine for over 21 years. Dr. Le is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Apparent Mineralocorticoid Excess, Familial Hyperaldosteronism, Hyperaldosteronism, and Osteomyelitis in Children. Dr. Le is board certified in American Board Of Internal Medicine.

    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine
    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine

    Nermine Morcos MD Inc

    Laguna Hills, CA 
     (2.3 miles away)
    Experience:
    27+ years
    Languages Spoken:
    English

    Nermine Morcos is a primary care provider, practicing in Internal Medicine in Laguna Hills, California. She has been practicing medicine for over 27 years. Dr. Morcos is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). Her clinical expertise encompasses Autoerythrocyte Sensitivity, Gardner-Diamond Syndrome, Purpura, and Anal Cancer.

    Experienced in Primary Immunodeficiency (PID)
    Geriatrics | Internal Medicine
    Experienced in Primary Immunodeficiency (PID)
    Geriatrics | Internal Medicine

    Access Community Health Center

    Laguna Hills, CA 
     (2.3 miles away)
    Experience:
    32+ years
    Languages Spoken:
    English

    Alvin Chang is a primary care provider, practicing in Internal Medicine and Geriatrics in Laguna Hills, California. He has been practicing medicine for over 32 years. Dr. Chang is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Schizoaffective Disorder, Osteomyelitis in Children, Vitamin D Deficiency, and Gastrostomy. Dr. Chang is board certified in American Board Of Internal Medicine.

    Experienced in Primary Immunodeficiency (PID)
    Hospital Medicine
    Experienced in Primary Immunodeficiency (PID)
    Hospital Medicine

    Office

    22921 Triton Way Ste 125, 
    Laguna Hills, CA 
     (2.3 miles away)
    Languages Spoken:
    English

    Bijan Movafegh is a primary care provider, practicing in Hospital Medicine in Laguna Hills, California. Dr. Movafegh is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His clinical expertise encompasses Ogilvie Syndrome, Stroke, Sepsis, Pacemaker Implantation, and Hip Replacement.

    Experienced in Primary Immunodeficiency (PID)
    Family Medicine
    Experienced in Primary Immunodeficiency (PID)
    Family Medicine

    Optum - Mission Viejo

    26991 Crown Valley Pkwy, 
    Mission Viejo, CA 
     (2.5 miles away)
    Experience:
    38+ years
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Ronald Richmond is a primary care provider, practicing in Family Medicine in Mission Viejo, California. He has been practicing medicine for over 38 years. Dr. Richmond is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Sciatica, Insomnia, and Glucocorticoid-Remediable Aldosteronism. Dr. Richmond is board certified in American Board Of Family Medicine. Dr. Richmond is currently accepting new patients.

    Experienced in Primary Immunodeficiency (PID)
    Allergy and Immunology
    Experienced in Primary Immunodeficiency (PID)
    Allergy and Immunology

    Allergy And Asthma Assoc Of So Calif

    27800 Medical Center Rd, 
    Mission Viejo, CA 
     (2.6 miles away)
    Experience:
    26+ years
    Languages Spoken:
    English

    Vinay Mehta is an Allergy and Immunologist practicing medicine in Mission Viejo, California. He has been practicing medicine for over 26 years. Dr. Mehta is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Grass Allergy, Allergic Rhinitis, Sinusitis, and Hives. Dr. Mehta is board certified in American Board Of Allergy & Immunology.

    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine
    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine
    24451 Health Center Drive, 
    Laguna Hills, CA 
     (3.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Jennifer Hung is a primary care provider, practicing in Internal Medicine in Laguna Hills, California. Dr. Hung is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). Her clinical expertise encompasses Sepsis, Primary Immunodeficiency (PID), Peptic Ulcer, Necrosis, and Gastrostomy. Dr. Hung is currently accepting new patients.

    Experienced in Primary Immunodeficiency (PID)
    Experienced in Primary Immunodeficiency (PID)

    Sarah Hassan, MD

    24411 Health Center Dr Ste 320, 
    Laguna Hills, CA 
     (3.1 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sarah Hassan is an Oncologist practicing medicine in Laguna Hills, California. Dr. Hassan is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). She is also highly rated in 8 other conditions, according to our data. Her clinical expertise encompasses Inflammatory Breast Cancer, Angiosarcoma, Breast Cancer, and Paget Disease of the Breast.

    Experienced in Primary Immunodeficiency (PID)
    Experienced in Primary Immunodeficiency (PID)

    Optum - Ladera Ranch

    800 Corporate Dr, 
    Ladera Ranch, CA 
     (3.2 miles away)
    Experience:
    45+ years
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Mitchell Wainwright is a primary care provider, practicing in Family Medicine in Ladera Ranch, California. He has been practicing medicine for over 45 years. Dr. Wainwright is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Papular Urticaria, COVID-19, Multisystem Inflammatory Syndrome in Children (MIS-C), and Empyema. Dr. Wainwright is currently accepting new patients.

    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine
    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine

    Optum - Rancho Santa Margarita

    29873 Santa Margarita Pkwy, 
    Rancho Santa Margarita, CA 
     (4.0 miles away)
    Experience:
    34+ years
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Shaparak Kamarei is a primary care provider, practicing in Internal Medicine in Rancho Santa Margarita, California. She has been practicing medicine for over 34 years. Dr. Kamarei is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). She is also highly rated in 9 other conditions, according to our data. Her clinical expertise encompasses Insomnia, Familial Hypertension, Hypertension, and Glucocorticoid-Remediable Aldosteronism. Dr. Kamarei is board certified in American Board Of Internal Medicine. Dr. Kamarei is currently accepting new patients.

    Experienced in Primary Immunodeficiency (PID)
    Family Medicine
    Experienced in Primary Immunodeficiency (PID)
    Family Medicine

    Excel Physicians Medical Corporation

    29809 Santa Margarita Pkwy, 
    Rancho Santa Margarita, CA 
     (4.0 miles away)
    Experience:
    41+ years
    Languages Spoken:
    English

    Peter Desilva is a primary care provider, practicing in Family Medicine in Rancho Santa Margarita, California. He has been practicing medicine for over 41 years. Dr. Desilva is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His clinical expertise encompasses Familial Combined Hyperlipidemia, Xanthoma, Cirrhosis, and Erectile Dysfunction (ED). Dr. Desilva is board certified in American Board Of Family Medicine.

    Experienced in Primary Immunodeficiency (PID)
    Family Medicine
    Experienced in Primary Immunodeficiency (PID)
    Family Medicine

    Saddleback Medical Group

    24331 El Toro Rd, 
    Laguna Woods, CA 
     (4.2 miles away)
    Experience:
    51+ years
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Bruce Van Vranken is a primary care provider, practicing in Family Medicine in Laguna Woods, California. He has been practicing medicine for over 51 years. Dr. Van Vranken is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Methylmalonic Acidemia with Homocystinuria, Homocystinuria, Inborn Amino Acid Metabolism Disorder, and Sciatica. Dr. Van Vranken is board certified in American Board Of Family Medicine. Dr. Van Vranken is currently accepting new patients.

    Experienced in Primary Immunodeficiency (PID)
    Allergy and Immunology
    Experienced in Primary Immunodeficiency (PID)
    Allergy and Immunology

    CPRx Incorporated

    2 Journey Ste 201, 
    Aliso Viejo, CA 
     (4.4 miles away)
    Languages Spoken:
    English

    Gillian Bassirpour is an Allergy and Immunologist practicing medicine in Aliso Viejo, California. Dr. Bassirpour is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Simple Pulmonary Eosinophilia, Chronic Eosinophilic Pneumonia, Eosinophilic Pneumonia, and Hives.

    Showing 1-20 of 61

    Last Updated: 04/28/2026

    When should I see a Primary Immunodeficiency (PID) doctor near Mission Viejo, 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 Primary Immunodeficiency (PID) doctor near Mission Viejo, 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 Primary Immunodeficiency (PID) doctors near Mission Viejo, 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 Primary Immunodeficiency (PID) doctors near Mission Viejo, 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 Primary Immunodeficiency (PID) doctor near Mission Viejo, 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 Primary Immunodeficiency (PID) doctor search results page. 

    Why is it important to get a second opinion from a different Primary Immunodeficiency (PID) 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 Primary Immunodeficiency (PID) doctor near Mission Viejo, 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 Primary Immunodeficiency (PID) 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 Primary Immunodeficiency (PID) 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 Primary Immunodeficiency (PID) doctors near Mission Viejo, CA?

    Look for the filter feature on the left side of the Primary Immunodeficiency (PID) 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 Primary Immunodeficiency (PID) doctor that offers video calls?

    Look for the filter feature on the left-side of the Primary Immunodeficiency (PID) 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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