The 20 Best Primary Immunodeficiency (PID) Doctors Near Me in Laguna Hills, CA

Find the Top Primary Immunodeficiency (PID) Experts and Specialists

The 20 Best Primary Immunodeficiency (PID) Doctors near Laguna Hills, CA

Last Updated: 02/22/2026

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MediFind found 69 doctor with experience in Primary Immunodeficiency (PID) near Laguna Hills, CA. Of these, 59 are Experienced, 8 are Advanced, 1 are Distinguished and 1 are Elite.

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

    Gottschalk Medical Plaza-Dermatology

    1 Medical Plz Dr, 
    Irvine, CA 
     (9.6 miles away)
    Languages Spoken:
    English

    Sudhir Gupta is a Dermatologist in Irvine, California. Dr. Gupta is rated as an Elite provider by MediFind in the treatment of Primary Immunodeficiency (PID). His top areas of expertise are Primary Immunodeficiency (PID), Common Variable Immune Deficiency, X-Linked Agammaglobulinemia, and Immunodeficiency with Hyper IgM Type 1.

    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 
     (1.9 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). His top areas of expertise are Type 2 Diabetes (T2D), Osteomyelitis in Children, High Cholesterol, and Cirrhosis. Dr. Duong is currently accepting new patients.

    Warner W. Carr
    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 
     (2.9 miles away)
    Experience:
    30+ years
    Languages Spoken:
    English

    Warner Carr is an Allergy and Immunologist in Laguna Niguel, California. Dr. Carr has been practicing medicine for over 30 years and is rated as an Advanced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His top areas of expertise are Allergic Rhinitis, Allergic Conjunctivitis, Sinusitis, and Conjunctivitis (Pink Eye).

    Learn about our expert tiers
    Mark S. Sugar
    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 
     (2.9 miles away)
    Experience:
    57+ years
    Languages Spoken:
    English

    Mark Sugar is an Allergy and Immunologist in Laguna Niguel, California. Dr. Sugar has been practicing medicine for over 57 years and is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His top areas of expertise are Allergic Rhinitis, Sinusitis, Primary Immunodeficiency (PID), and Common Variable Immune Deficiency.

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

    Optumcare Medical Group

    11 Technology Dr, 
    Irvine, CA 
     (4.6 miles away)
    Experience:
    28+ years
    Languages Spoken:
    English
    Accepting New Patients

    Tengis Riznis is a primary care provider, practicing in Family Medicine in Irvine, California. Dr. Riznis has been practicing medicine for over 28 years and is rated as an Advanced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His top areas of expertise are Primary Immunodeficiency (PID), Chronic Inflammatory Response Syndrome (CIRS), Protein C Deficiency, Protein S Deficiency, and Endoscopy. Dr. Riznis is currently accepting new patients.

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

    Saddleback Medical Group

    Laguna Hills, CA 
     (0.1 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 top areas of expertise are 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 
     (0.1 miles away)
    Experience:
    21+ years
    Languages Spoken:
    English

    Hai Le is a primary care provider, practicing in Internal Medicine in Laguna Hills, California. Dr. Le has been practicing medicine for over 21 years and is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His top areas of expertise are Apparent Mineralocorticoid Excess, Hyperaldosteronism, Familial Hyperaldosteronism, and Hemoglobin E Disease.

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

    Nermine Morcos MD Inc

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

    Nermine Morcos is a primary care provider, practicing in Internal Medicine in Laguna Hills, California. Dr. Morcos has been practicing medicine for over 27 years and is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). Her top areas of expertise are Purpura, Autoerythrocyte Sensitivity, Gardner-Diamond Syndrome, 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 
     (0.1 miles away)
    Experience:
    32+ years
    Languages Spoken:
    English
    Offers Telehealth

    Alvin Chang is a primary care provider, practicing in Internal Medicine and Geriatrics in Laguna Hills, California. Dr. Chang has been practicing medicine for over 32 years and is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His top areas of expertise are Type 2 Diabetes (T2D), Schizoaffective Disorder, Osteomyelitis in Children, Vitamin D Deficiency, and Gastrostomy.

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

    Office

    22921 Triton Way Ste 125, 
    Laguna Hills, CA 
     (0.1 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 top areas of expertise are Ogilvie Syndrome, Stroke, Sepsis, Pacemaker Implantation, and Hip Replacement.

    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine
    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine
    24451 Health Center Drive, 
    Laguna Hills, CA 
     (1.3 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 top areas of expertise are Sepsis, Primary Immunodeficiency (PID), Necrosis, Peptic Ulcer, and Gastrostomy. Dr. Hung is currently accepting new patients.

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

    Marwan Edris MD

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

    Marwan Edris is a primary care provider, practicing in Internal Medicine in Laguna Hills, California. Dr. Edris has been practicing medicine for over 45 years and is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His top areas of expertise are Transient Familial Hyperbilirubinemia, Thyroid Dysgenesis, Congenital Hypothyroidism, and Newborn Jaundice.

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

    Sarah Hassan, MD

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

    Sarah Hassan is an Oncologist in Laguna Hills, California. Dr. Hassan is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). Her top areas of expertise are Inflammatory Breast Cancer, Angiosarcoma, Breast Cancer, and Paget Disease of the Breast.

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

    Oncology Physicians Network Of California PC

    Aliso Viejo, CA 
     (2.1 miles away)
    Experience:
    15+ years
    Languages Spoken:
    English
    Offers Telehealth

    Steven Yu is an Internal Medicine provider in Aliso Viejo, California. Dr. Yu has been practicing medicine for over 15 years and is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His top areas of expertise are Splenic Neoplasm, Liver Cancer, Essential Thrombocythemia, and Chondrosarcoma.

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

    Oncology Physicians Network Of California PC

    Aliso Viejo, CA 
     (2.1 miles away)
    Experience:
    13+ years
    Languages Spoken:
    English
    Offers Telehealth

    Eric Lee is an Internal Medicine provider in Aliso Viejo, California. Dr. Lee has been practicing medicine for over 13 years and is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His top areas of expertise are Splenic Neoplasm, Deep Vein Thrombosis, RUNX1 Familial Platelet Disorder, and Paris-Trousseau Thrombocytopenia.

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

    Saddleback Medical Group

    24331 El Toro Rd, 
    Laguna Woods, CA 
     (2.2 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. Dr. Van Vranken has been practicing medicine for over 51 years and is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His top areas of expertise are Methylmalonic Acidemia with Homocystinuria, Homocystinuria, Inborn Amino Acid Metabolism Disorder, and Sciatica. 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 
     (2.2 miles away)
    Languages Spoken:
    English

    Gillian Bassirpour is an Allergy and Immunologist in Aliso Viejo, California. Dr. Bassirpour is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). Her top areas of expertise are Simple Pulmonary Eosinophilia, Chronic Eosinophilic Pneumonia, Eosinophilic Pneumonia, and Hives.

    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 
     (2.4 miles away)
    Languages Spoken:
    English

    Gabriel Carabulea is an Oncologist in Mission Viejo, California. Dr. Carabulea is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His top areas of expertise are Pleuropulmonary Blastoma, Febrile Neutropenia, Hemochromatosis, and Chronic Familial Neutropenia.

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

    Optum - Mission Viejo

    26991 Crown Valley Pkwy, 
    Mission Viejo, CA 
     (2.6 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. Dr. Richmond has been practicing medicine for over 38 years and is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His top areas of expertise are High Cholesterol, Sciatica, Insomnia, and Glucocorticoid-Remediable Aldosteronism. Dr. Richmond is currently accepting new patients.

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

    Optum - Laguna Moulton

    23595 Moulton Pkwy, 
    Laguna Hills, CA 
     (2.7 miles away)
    Experience:
    25+ years
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Roger Tran is a primary care provider, practicing in Geriatrics in Laguna Hills, California. Dr. Tran has been practicing medicine for over 25 years and is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His top areas of expertise are Nephrosclerosis, Renovascular Hypertension, N-Acetylglutamate Synthase Deficiency, and Carbamoyl Phosphate Synthetase 1 Deficiency. Dr. Tran is currently accepting new patients.

    Showing 1-20 of 69

    Last Updated: 02/22/2026

    When should I see a Primary Immunodeficiency (PID) doctor near Laguna Hills, 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 Laguna Hills, 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 Laguna Hills, 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 Laguna Hills, 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 Laguna Hills, 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 Laguna Hills, 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 Laguna Hills, 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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