The 20 Best Secondary Immunodeficiency (SID) Doctors Near Me in Long Beach, CA

Find the Top Secondary Immunodeficiency (SID) Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 15 doctor with experience in Secondary Immunodeficiency (SID) near Long Beach, CA. Of these, 14 are Experienced and 1 are Advanced.

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15 providers found
    Experienced in Secondary Immunodeficiency (SID)
    Intensive Care Medicine
    Experienced in Secondary Immunodeficiency (SID)
    Intensive Care Medicine

    Gregory S Thomas MD MPH Corporation

    2865 Atlantic Ave Ste 104, 
    Long Beach, CA 
     (2.5 miles away)
    Languages Spoken:
    English

    Jeffrey Riker is an Intensive Care Medicine provider practicing medicine in Long Beach, California. Dr. Riker is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). His clinical expertise encompasses Cystic Fibrosis, Secondary Immunodeficiency (SID), Newborn Jaundice, and Muscle Invasive Bladder Cancer.

    Advanced in Secondary Immunodeficiency (SID)
    Pulmonary Medicine
    Advanced in Secondary Immunodeficiency (SID)
    Pulmonary Medicine

    Memorial Care Medical Foundation

    3828 Schaufele Ave, 
    Long Beach, CA 
     (4.8 miles away)
    Experience:
    16+ years
    Languages Spoken:
    English
    Offers Telehealth

    Jimmy Johannes is a Pulmonary Medicine provider practicing medicine in Long Beach, California. He has been practicing medicine for over 16 years. Dr. Johannes is rated as an Advanced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Obstructive Sleep Apnea, Cystic Fibrosis, Lung Metastases, Lung Transplant, and Advanced Bronchoscopy. Dr. Johannes is board certified in American Board Of Internal Medicine.

    Experienced in Secondary Immunodeficiency (SID)
    Pulmonary Medicine
    Experienced in Secondary Immunodeficiency (SID)
    Pulmonary Medicine

    Lung And Allergy Health Associates Pmc

    2701 Atlantic Ave, 
    Long Beach, CA 
     (2.6 miles away)
    Experience:
    35+ years
    Languages Spoken:
    English

    Lida Mohtasham is a Pulmonary Medicine provider practicing medicine in Long Beach, California. She has been practicing medicine for over 35 years. Dr. Mohtasham is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Cerebral Hypoxia, Asthma, Cystic Fibrosis, and Secondary Immunodeficiency (SID). Dr. Mohtasham is board certified in American Board Of Pediatrics.

    Learn about our expert tiers
    Experienced in Secondary Immunodeficiency (SID)
    Gastroenterology
    Experienced in Secondary Immunodeficiency (SID)
    Gastroenterology

    Childrens Gastroenterology Mcsg

    2701 Atlantic Ave, 
    Long Beach, CA 
     (2.6 miles away)
    Experience:
    40+ years
    Languages Spoken:
    English

    Sarah Sela is a Gastroenterologist practicing medicine in Long Beach, California. She has been practicing medicine for over 40 years. Dr. Sela is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Malnutrition, Gastroparesis, Lactose Intolerance, and Non-Alcoholic Fatty Liver Disease. Dr. Sela is board certified in American Board Of Pediatrics.

    Experienced in Secondary Immunodeficiency (SID)
    Pulmonary Medicine
    Experienced in Secondary Immunodeficiency (SID)
    Pulmonary Medicine

    Lung And Allergy Health Associates Pmc

    2701 Atlantic Ave, 
    Long Beach, CA 
     (2.6 miles away)
    Experience:
    22+ years
    Languages Spoken:
    English
    Offers Telehealth

    Dibanni Vasquez is a Pulmonary Medicine provider practicing medicine in Long Beach, California. He has been practicing medicine for over 22 years. Dr. Vasquez is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). His clinical expertise encompasses Cerebral Hypoxia, Asthma in Children, and Secondary Immunodeficiency (SID).

    Experienced in Secondary Immunodeficiency (SID)
    Pulmonary Medicine
    Experienced in Secondary Immunodeficiency (SID)
    Pulmonary Medicine

    Memorialcare Medical Foundation

    2810 Long Beach Blvd, 
    Long Beach, CA 
     (2.7 miles away)
    Experience:
    16+ years
    Languages Spoken:
    English
    Offers Telehealth

    Thomas Jiang is a Pulmonary Medicine provider practicing medicine in Long Beach, California. He has been practicing medicine for over 16 years. Dr. Jiang is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Obstructive Sleep Apnea, Cystic Fibrosis, Bronchiectasis, Lung Metastases, and Balloon Sinuplasty. Dr. Jiang is board certified in American Board Of Internal Medicine.

    Experienced in Secondary Immunodeficiency (SID)
    Pulmonary Medicine
    Experienced in Secondary Immunodeficiency (SID)
    Pulmonary Medicine

    Memorial Care Medical Foundation

    3828 Schaufele Ave, 
    Long Beach, CA 
     (4.8 miles away)
    Experience:
    16+ years
    Languages Spoken:
    English
    Offers Telehealth

    Christopher Yee is a Pulmonary Medicine provider practicing medicine in Long Beach, California. He has been practicing medicine for over 16 years. Dr. Yee is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Eosinophilic Asthma, Cystic Fibrosis, Lung Metastases, and Pneumonia. Dr. Yee is board certified in American Board Of Internal Medicine.

    Experienced in Secondary Immunodeficiency (SID)
    Pulmonary Medicine
    Experienced in Secondary Immunodeficiency (SID)
    Pulmonary Medicine

    Sarathi Bhattacharyya, MD

    3828 Schaufele Ave Ste 200, 
    Long Beach, CA 
     (6.0 miles away)
    Experience:
    10+ years
    Languages Spoken:
    English

    Sarathi Bhattacharyya is a Pulmonary Medicine provider practicing medicine in Long Beach, California. He has been practicing medicine for over 10 years. Dr. Bhattacharyya is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Obstructive Sleep Apnea, Periodic Limb Movement Disorder, Drowsiness, and Eosinophilic Asthma.

    Experienced in Secondary Immunodeficiency (SID)
    Experienced in Secondary Immunodeficiency (SID)

    Los Angeles Biomedical Research Institute At Harbor-UCLA Medical Cente

    1124 W Carson St, 
    Torrance, CA 
     (7.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Matthew Budoff is a Cardiologist practicing medicine in Torrance, California. Dr. Budoff is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). He is also highly rated in 24 other conditions, according to our data. His clinical expertise encompasses Coronary Heart Disease, Atherosclerosis, Heart Attack, Hormone Replacement Therapy (HRT), and Heart Bypass Surgery.

    Experienced in Secondary Immunodeficiency (SID)
    Pulmonary Medicine | Intensive Care Medicine
    Experienced in Secondary Immunodeficiency (SID)
    Pulmonary Medicine | Intensive Care Medicine

    Coastline Medical Office

    25821 S Vermont Ave, 
    Harbor City, CA 
     (6.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Robert Liou is an Intensive Care Medicine specialist and a Pulmonary Medicine provider practicing medicine in Harbor City, California. Dr. Liou is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Lung Adenocarcinoma, EGFR Positive Lung Cancer, ALK-Positive Non-Small Cell Lung Cancer, and Small Cell Lung Cancer (SCLC). Dr. Liou is currently accepting new patients.

    Experienced in Secondary Immunodeficiency (SID)
    Infectious Disease
    Experienced in Secondary Immunodeficiency (SID)
    Infectious Disease

    Office

    1000 W Carson St Bldg N24, 
    Torrance, CA 
     (7.1 miles away)
    Languages Spoken:
    English

    Mallory Witt is an Infectious Disease provider practicing medicine in Torrance, California. Dr. Witt is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses HIV/AIDS, Myelitis, AIDS Dementia Complex, and AIDS Dysmorphic Syndrome.

    Experienced in Secondary Immunodeficiency (SID)
    Infectious Disease | Internal Medicine
    Experienced in Secondary Immunodeficiency (SID)
    Infectious Disease | Internal Medicine

    Torrance Health Association Inc.

    2841 Lomita Blvd, 
    Torrance, CA 
     (8.7 miles away)
    Experience:
    39+ years
    Languages Spoken:
    English
    Offers Telehealth

    Eric Milefchik is an Infectious Disease specialist and an Internal Medicine provider practicing medicine in Torrance, California. He has been practicing medicine for over 39 years. Dr. Milefchik is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Lymphangitis, Multisystem Inflammatory Syndrome in Children (MIS-C), COVID-19, and Osteomyelitis. Dr. Milefchik is board certified in American Board Internal Medicine.

    Experienced in Secondary Immunodeficiency (SID)
    Gastroenterology
    Experienced in Secondary Immunodeficiency (SID)
    Gastroenterology

    Childrens Gastroenterology Mcsg

    3640 Lomita Blvd, 
    Torrance, CA 
     (9.4 miles away)
    Experience:
    26+ years
    Languages Spoken:
    English

    Stephanie Abrams is a Gastroenterologist practicing medicine in Torrance, California. She has been practicing medicine for over 26 years. Dr. Abrams is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Malnutrition, Tracheoesophageal Fistula, Obesity, and Fecal Impaction. Dr. Abrams is board certified in American Board Of Pediatrics.

    Experienced in Secondary Immunodeficiency (SID)
    Gastroenterology | Pediatrics
    Experienced in Secondary Immunodeficiency (SID)
    Gastroenterology | Pediatrics

    Children's Gastroenterology Mcsg

    9940 Talbert Ave, 
    Fountain Valley, CA 
     (14.4 miles away)
    Experience:
    10+ years
    Languages Spoken:
    English

    Roy Nattiv is a Pediatrics specialist and a Gastroenterologist practicing medicine in Fountain Valley, California. He has been practicing medicine for over 10 years. Dr. Nattiv is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). His clinical expertise encompasses Colitis, Viral Gastroenteritis, Fecal Impaction, and Non-Alcoholic Fatty Liver Disease. Dr. Nattiv is board certified in American Board Of Pediatrics.

    Experienced in Secondary Immunodeficiency (SID)
    Gastroenterology | Pediatrics
    Experienced in Secondary Immunodeficiency (SID)
    Gastroenterology | Pediatrics

    Children's Gastroenterology Mcsg

    9940 Talbert Ave, 
    Fountain Valley, CA 
     (14.4 miles away)
    Experience:
    18+ years
    Languages Spoken:
    English

    Leon Chen is a Pediatrics specialist and a Gastroenterologist practicing medicine in Fountain Valley, California. He has been practicing medicine for over 18 years. Dr. Chen is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Gastroschisis, Tracheoesophageal Fistula, Malnutrition, and Bacterial Gastroenteritis. Dr. Chen is board certified in American Board Of Pediatrics.

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    Last Updated: 04/28/2026

    When should I see a Secondary Immunodeficiency (SID) doctor near Long Beach, 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 Secondary Immunodeficiency (SID) doctor near Long Beach, 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 Secondary Immunodeficiency (SID) doctors near Long Beach, 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 Secondary Immunodeficiency (SID) doctors near Long Beach, 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 Secondary Immunodeficiency (SID) doctor near Long Beach, 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 Secondary Immunodeficiency (SID) doctor search results page. 

    Why is it important to get a second opinion from a different Secondary Immunodeficiency (SID) 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 Secondary Immunodeficiency (SID) doctor near Long Beach, 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 Secondary Immunodeficiency (SID) 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 Secondary Immunodeficiency (SID) 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 Secondary Immunodeficiency (SID) doctors near Long Beach, CA?

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

    Look for the filter feature on the left-side of the Secondary Immunodeficiency (SID) 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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