The 20 Best Primary Immunodeficiency (PID) Doctors Near Me in foothill ranch, CA

Find the Top Primary Immunodeficiency (PID) Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 101 doctor with experience in Primary Immunodeficiency (PID) near foothill ranch, CA. Of these, 84 are Experienced, 16 are Advanced and 1 are Elite.

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101 providers found
    Elite in Primary Immunodeficiency (PID)
    Allergy and Immunology
    Elite in Primary Immunodeficiency (PID)
    Allergy and Immunology
    Referral may be required

    Gottschalk Medical Plaza

    1 Medical Plaza Drive, 
    Irvine, CA 
     (10.9 miles away)
    Languages Spoken:
    English, Hindi
    Offers Telehealth

    Sudhir Gupta is an Allergy and Immunologist 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. Dr. Gupta is board certified in American Board Of Allergy And Immunology - Allergy And Immunology.

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

    Felice L Gersh MD Inc

    16300 Sand Canyon Ave Ste 311, 
    Irvine, CA 
     (3.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Michael Waldman is a primary care provider, practicing in Internal Medicine in Irvine, California. Dr. Waldman is rated as an Advanced provider by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 52 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), High Cholesterol, Autoerythrocyte Sensitivity, and Purpura. Dr. Waldman is currently accepting new patients.

    Experienced in Primary Immunodeficiency (PID)
    Hematology | Oncology
    Experienced in Primary Immunodeficiency (PID)
    Hematology | Oncology
    Referral may be required

    UCI Health - Irvine Chao Family Comprehensive Cancer Center & Ambulatory Care

    19208 Jamboree Road, 
    Irvine, CA 
     (9.3 miles away)
    Languages Spoken:
    English, Farsi
    Offers Telehealth

    Misagh Karimi is a Hematologist and an Oncologist practicing medicine in Irvine, California. Dr. Karimi is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 27 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Familial Colorectal Cancer, Colorectal Cancer, and Paget Disease of the Breast. Dr. Karimi is board certified in American Board Of Internal Medicine - Hematology and American Board Of Internal Medicine - Medical Oncology.

    Learn about our expert tiers
    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 
     (4.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Shaparak Kamarei is a primary care provider, practicing in Internal Medicine in Rancho Santa Margarita, California. 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, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension. 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

    Health And Wellness Center Inc

    23672 Birtcher Dr, 
    Lake Forest, CA 
     (4.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Mohammed Ali is a primary care provider, practicing in Family Medicine in Lake Forest, California. Dr. Ali is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Premature Ovarian Failure, Down Syndrome, and Hypogonadism Primary Partial Alopecia. Dr. Ali is board certified in American Board Of Family Medicine. Dr. Ali is currently accepting new patients.

    Advanced in Primary Immunodeficiency (PID)
    Internal Medicine
    Advanced in Primary Immunodeficiency (PID)
    Internal Medicine
    7 Technology Drive, 
    Irvine, CA 
     (4.7 miles away)
    Languages Spoken:
    English

    Benhoor Khalpari is a primary care provider, practicing in Internal Medicine in Irvine, California. Dr. Khalpari is rated as an Advanced 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 Primary Immunodeficiency (PID), Malnutrition, Protein Deficiency, Gastrointestinal Bleeding, and Endoscopy.

    Advanced in Primary Immunodeficiency (PID)
    Family Medicine
    Advanced in Primary Immunodeficiency (PID)
    Family Medicine
    7 Technology Drive, 
    Irvine, CA 
     (4.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Tengis Riznis is a primary care provider, practicing in Family Medicine in Irvine, California. Dr. Riznis is rated as an Advanced provider by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Primary Immunodeficiency (PID), Chronic Inflammatory Response Syndrome (CIRS), Protein S Deficiency, Protein C Deficiency, and Endoscopy. Dr. Riznis is board certified in American Board Of Family Medicine. Dr. Riznis is currently accepting new patients.

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

    Monarch Healthcare A Medical Group Inc.

    7 Technology Dr, 
    Irvine, CA 
     (4.7 miles away)
    Languages Spoken:
    English

    Thuy Nguyen is a primary care provider, practicing in Family Medicine in Irvine, California. Dr. Nguyen is rated as an Advanced 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 Protein Deficiency, Malnutrition, Primary Immunodeficiency (PID), and Type 2 Diabetes (T2D).

    Advanced in Primary Immunodeficiency (PID)
    Internal Medicine
    Advanced in Primary Immunodeficiency (PID)
    Internal Medicine
    11 Technology Drive, 
    Irvine, CA 
     (4.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Nidal Hannat is a primary care provider, practicing in Internal Medicine in Irvine, California. Dr. Hannat is rated as an Advanced 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 Congenital Antithrombin 3 Deficiency, Hereditary Resistance to Anti-Vitamin K, Protein C Deficiency, Protein S Deficiency, and Cardiac Ablation. Dr. Hannat is currently accepting new patients.

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

    Optumcare Medical Group

    11 Technology Dr, 
    Irvine, CA 
     (4.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Mohana Kulkarni is a primary care provider, practicing in Internal Medicine in Irvine, California. Dr. Kulkarni is rated as an Advanced provider by MediFind in the treatment of Primary Immunodeficiency (PID). She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Primary Immunodeficiency (PID), Hypertensive Heart Disease, Pediatric Myocarditis, and Malnutrition. Dr. Kulkarni is currently accepting new patients.

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

    Optumcare Medical Group

    11 Technology Dr, 
    Irvine, CA 
     (4.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Siamak Nabili is a primary care provider, practicing in Internal Medicine in Irvine, California. Dr. Nabili is rated as an Advanced 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 Primary Immunodeficiency (PID), Sepsis, Ogilvie Syndrome, and Saddle Pulmonary Embolism. Dr. Nabili is board certified in American Board Of Internal Medicine. Dr. Nabili is currently accepting new patients.

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

    Optumcare Medical Group

    11 Technology Dr, 
    Irvine, CA 
     (4.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Subrato Ghosh is a primary care provider, practicing in Internal Medicine in Irvine, California. Dr. Ghosh is rated as an Advanced 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 Primary Immunodeficiency (PID), Rhabdomyolysis, Malnutrition, and Chronic Inflammatory Response Syndrome (CIRS). Dr. Ghosh is currently accepting new patients.

    Experienced in Primary Immunodeficiency (PID)
    Allergy and Immunology
    Experienced in Primary Immunodeficiency (PID)
    Allergy and Immunology
    Referral may be required
    26750 Towne Centre Drive, Suite D, 
    Foothill Ranch, CA 
     (0.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Denis Yoshii is an Allergy and Immunologist practicing medicine in Foothill Ranch, California. Dr. Yoshii is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His clinical expertise encompasses Common Variable Immune Deficiency, Grass Allergy, Primary Immunodeficiency (PID), and Allergic Rhinitis. Dr. Yoshii is board certified in American Board Of Allergy & Immunology. Dr. Yoshii is currently accepting new patients.

    Experienced in Primary Immunodeficiency (PID)
    Allergy and Immunology
    Experienced in Primary Immunodeficiency (PID)
    Allergy and Immunology
    Referral may be required

    Office

    26672 Portola Pkwy Ste 110, 
    Foothill Ranch, CA 
     (1.0 miles away)
    Experience:
    10+ years
    Languages Spoken:
    English
    Offers Telehealth

    Christine Panganiban is an Allergy and Immunologist practicing medicine in Foothill Ranch, California. She has been practicing medicine for over 10 years. Dr. Panganiban is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). Her clinical expertise encompasses Angioedema, Common Variable Immune Deficiency, Grass Allergy, and Hives.

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

    Addiction Center For Healing

    6 Hughes Ste 100, 
    Irvine, CA 
     (3.9 miles away)
    Languages Spoken:
    English

    Leigh Connealy is a primary care provider, practicing in Family Medicine in Irvine, California. Dr. Connealy is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Precocious Puberty, Primary Immunodeficiency (PID), Hypoaldosteronism, and Glucocorticoid Resistance.

    Experienced in Primary Immunodeficiency (PID)
    Hematology
    Experienced in Primary Immunodeficiency (PID)
    Hematology
    Referral may be required

    City Of Hope Orange County Lennar Foundation Cancer Center

    Irvine, CA 
     (3.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Lisa Lee is a Hematologist practicing medicine in Irvine, California. Dr. Lee is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). She is also highly rated in 7 other conditions, according to our data. Her clinical expertise encompasses Multiple Myeloma, Relapsed Refractory Multiple Myeloma (RRMM), Anemia, Smoldering Multiple Myeloma, and Bone Marrow Aspiration.

    Experienced in Primary Immunodeficiency (PID)
    Hematology | Oncology
    Experienced in Primary Immunodeficiency (PID)
    Hematology | Oncology
    Referral may be required

    Danny Nguyen, M.D.

    Irvine, CA 
     (3.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Danny Nguyen is a primary care provider, a Hematologist and an Oncologist in Irvine, California. Dr. Nguyen is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Colorectal Cancer, Familial Colorectal Cancer, Lung Cancer, and Non-Hodgkin Lymphoma.

    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 
     (4.5 miles away)
    Languages Spoken:
    English

    Peter Desilva is a primary care provider, practicing in Family Medicine in Rancho Santa Margarita, California. 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)
    Internal Medicine
    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine
    7 Technology Drive, 
    Irvine, CA 
     (4.7 miles away)
    Languages Spoken:
    English

    Richard Appel is a primary care provider, practicing in Internal Medicine in Irvine, California. Dr. Appel is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His clinical expertise encompasses Chronic Inflammatory Response Syndrome (CIRS), Primary Immunodeficiency (PID), Acute Kidney Failure, and Apoplexy.

    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine
    Experienced in Primary Immunodeficiency (PID)
    Internal Medicine
    7 Technology Drive, 
    Irvine, CA 
     (4.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Erik Geiger is a primary care provider, practicing in Internal Medicine in Irvine, California. Dr. Geiger is rated as an Experienced provider by MediFind in the treatment of Primary Immunodeficiency (PID). His clinical expertise encompasses Sepsis, Stroke, Peptic Ulcer, Apoplexy, and Hip Replacement. Dr. Geiger is currently accepting new patients.

    Showing 1-20 of 101

    Last Updated: 09/26/2026

    When should I see a Primary Immunodeficiency (PID) doctor near foothill ranch, 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 foothill ranch, 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 foothill ranch, 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 foothill ranch, 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 foothill ranch, 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 foothill ranch, 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 foothill ranch, 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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