The 20 Best Activated PI3K Delta Syndrome (APDS) Doctors in The United Kingdom

Find the Top Activated PI3K Delta Syndrome (APDS) Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 25 doctor with experience in Activated PI3K Delta Syndrome (APDS) near The United Kingdom. Of these, 20 are Experienced, 3 are Distinguished and 2 are Elite.

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25 providers found
    Elite in Activated PI3K Delta Syndrome (APDS)
    Elite in Activated PI3K Delta Syndrome (APDS)
    Belfast, NIR, GB 

    Tanya Coulter practices practicing medicine in Belfast, United Kingdom. Ms. Coulter is rated as an Elite expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Activated PI3K Delta Syndrome (APDS), Lymphoid Hyperplasia, X-Linked Agammaglobulinemia, and Primary Immunodeficiency (PID).

    Elite in Activated PI3K Delta Syndrome (APDS)
    Elite in Activated PI3K Delta Syndrome (APDS)
    Robinson Way, 
    Cambridge, ENG, GB 

    Klaus Okkenhaug practices practicing medicine in Cambridge, United Kingdom. Mr. Okkenhaug is rated as an Elite expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Activated PI3K Delta Syndrome (APDS), Lymphoid Hyperplasia, Lymphofollicular Hyperplasia, and Primary Immunodeficiency (PID).

    Distinguished in Activated PI3K Delta Syndrome (APDS)
    Distinguished in Activated PI3K Delta Syndrome (APDS)

    Great Ormond Street Hospital For Sick Children NHS Foundation Trust

    London, ENG, GB 

    Claire Booth practices practicing medicine in London, United Kingdom. Ms. Booth is rated as a Distinguished expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). She is also highly rated in 15 other conditions, according to our data. Her clinical expertise encompasses X-Linked Lymphoproliferative Disease, Severe Combined Immunodeficiency (SCID), Adenosine Deaminase Deficiency, Leukocyte Adhesion Deficiency Type 1, and Bone Marrow Transplant.

    Learn about our expert tiers
    Distinguished in Activated PI3K Delta Syndrome (APDS)
    Distinguished in Activated PI3K Delta Syndrome (APDS)
    Sheffield, ENG, GB 

    Alison Condliffe practices practicing medicine in Sheffield, United Kingdom. Ms. Condliffe is rated as a Distinguished expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Activated PI3K Delta Syndrome (APDS), Primary Immunodeficiency (PID), Common Variable Immune Deficiency, and Empyema.

    Distinguished in Activated PI3K Delta Syndrome (APDS)
    Distinguished in Activated PI3K Delta Syndrome (APDS)
    Cambridge, ENG, GB 

    Sergey Nejentsev practices practicing medicine in Cambridge, United Kingdom. Mr. Nejentsev is rated as a Distinguished expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Activated PI3K Delta Syndrome (APDS), Lymphoid Hyperplasia, Ciliary Dyskinesia-Bronchiectasis, and Lymphofollicular Hyperplasia.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Royal North Shore Hospital, 
    Saint Leonards-on-sea, ENG, GB 

    Markus Rose practices practicing medicine in Saint Leonards-on-sea, United Kingdom. Mr. Rose is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Empyema, Anaphylaxis, Pleural Effusion, and Strep Throat.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Gower Street, 
    London, ENG, GB 

    Judith Breuer practices practicing medicine in London, United Kingdom. Ms. Breuer is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). She is also highly rated in 12 other conditions, according to our data. Her clinical expertise encompasses Shingles, Chickenpox, Cytomegalovirus Infection, Oral Herpes, and Bone Marrow Transplant.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Queen Victoria Road, 
    Newcastle Upon Tyne, ENG, GB 

    Andrew Gennery practices practicing medicine in Newcastle Upon Tyne, United Kingdom. Mr. Gennery is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). He is also highly rated in 31 other conditions, according to our data. His clinical expertise encompasses Severe Combined Immunodeficiency (SCID), Primary Immunodeficiency (PID), Chronic Granulomatous Disease, Bone Marrow Transplant, and Heart Transplant.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Newcastle Upon Tyne, ENG, GB 

    Andrew Cant practices practicing medicine in Newcastle Upon Tyne, United Kingdom. Mr. Cant is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Primary Immunodeficiency (PID), Severe Combined Immunodeficiency (SCID), Chronic Granulomatous Disease, ZAP70-Related Severe Combined Immunodeficiency, and Bone Marrow Transplant.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Sheffield, ENG, GB 

    Clare Stokes practices practicing medicine in Sheffield, United Kingdom. Ms. Stokes is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). Her clinical expertise encompasses Activated PI3K Delta Syndrome (APDS).

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Experienced in Activated PI3K Delta Syndrome (APDS)
    London, ENG, GB 

    Nuria Clemente-Sanchez practices practicing medicine in London, United Kingdom. Ms. Clemente-Sanchez is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Zika Virus Disease, Achalasia Microcephaly Syndrome, Microcephaly, and Cortical Dysplasia.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Newcastle Upon Tyne, ENG, GB 

    Zohreh Nademi practices practicing medicine in Newcastle Upon Tyne, United Kingdom. Nademi is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). They are also highly rated in 10 other conditions, according to our data. Their clinical expertise encompasses Primary Immunodeficiency (PID), Severe Combined Immunodeficiency (SCID), IPEX Syndrome, ZAP70-Related Severe Combined Immunodeficiency, and Bone Marrow Transplant.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Sheffield, ENG, GB 

    Stone Elworthy practices practicing medicine in Sheffield, United Kingdom. Mr. Elworthy is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). His clinical expertise encompasses Cerebral Hypoxia, Activated PI3K Delta Syndrome (APDS), Primary Immunodeficiency (PID), and Bronchiectasis.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Guy's And St Thomas' NHS Trust, 
    London, ENG, GB 

    Deborah Rosendahl-Morris practices practicing medicine in London, United Kingdom. Ms. Rosendahl-Morris is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). She is also highly rated in 10 other conditions, according to our data. Her clinical expertise encompasses Dextrocardia, Dextrocardia with Situs Inversus, Situs Inversus, and Kartagener Syndrome.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Experienced in Activated PI3K Delta Syndrome (APDS)
    York, ENG, GB 

    Noemie Hamilton practices practicing medicine in York, United Kingdom. Ms. Hamilton is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). Her clinical expertise encompasses Aicardi-Goutieres Syndrome, Fetal Enterovirus Syndrome, CACH Syndrome, and Leukodystrophy.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Newcastle Upon Tyne, ENG, GB 

    Mary Slatter practices practicing medicine in Newcastle Upon Tyne, United Kingdom. Ms. Slatter is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). She is also highly rated in 18 other conditions, according to our data. Her clinical expertise encompasses Primary Immunodeficiency (PID), Severe Combined Immunodeficiency (SCID), Chronic Granulomatous Disease, Graft Versus Host Disease (GvHD), and Bone Marrow Transplant.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Experienced in Activated PI3K Delta Syndrome (APDS)

    Great Ormond Street Hospital For Children

    London, ENG, GB 

    Justin Penner practices practicing medicine in London, United Kingdom. Mr. Penner is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). His clinical expertise encompasses Infantile Neutropenia, Herpes Virus Antenatal Infection, Cytomegalovirus Antenatal Infection, and Agranulocytosis.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Newcastle Upon Tyne, ENG, GB 

    Kanchan Rao practices practicing medicine in Newcastle Upon Tyne, United Kingdom. Ms. Rao is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). She is also highly rated in 9 other conditions, according to our data. Her clinical expertise encompasses Hemophagocytic Lymphohistiocytosis, Primary Immunodeficiency (PID), Non-Langerhans-Cell Histiocytosis, Chronic Graft Versus Host Disease (cGvHD), and Bone Marrow Transplant.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Sheffield, ENG, GB 

    Tomasz Prajsnar practices practicing medicine in Sheffield, United Kingdom. Mr. Prajsnar is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). His clinical expertise encompasses Salmonella Enterocolitis, Myeloperoxidase Deficiency, Periodontitis, and Activated PI3K Delta Syndrome (APDS).

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Firth Court, 
    Sheffield, ENG, GB 

    Stephen Renshaw practices practicing medicine in Sheffield, United Kingdom. Mr. Renshaw is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Myeloperoxidase Deficiency, Cerebral Hypoxia, Interstitial Lung Disease, Hemorrhoidectomy, and Appendectomy.

    While we make every effort to provide the best results possible, data is currently limited outside of the United States. Doctors listed may include both clinicians and researchers, and individuals relocate frequently. We recommend contacting doctors directly to confirm their location and areas of focus. Contact information is provided when available. Learn more about our expert tiers.
    Showing 1-20 of 25

    Last Updated: 04/28/2026

    What is the definition of Activated PI3K Delta Syndrome (APDS)?

    Activated PI3K-delta syndrome (also known as APDS) is a disorder that impairs the immune system. Individuals with this condition often have low numbers of white blood cells (lymphopenia), particularly B cells and T cells. Normally, these cells recognize and attack foreign invaders, such as viruses and bacteria, to prevent infection. The severity of activated PI3K-delta syndrome varies widely. Some people may have multiple, severe infections while others show mild symptoms to none at all.

    When should I see an Activated PI3K Delta Syndrome (APDS) doctor in The United Kingdom?

    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 an Activated PI3K Delta Syndrome (APDS) doctor in The United Kingdom?

    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 Activated PI3K Delta Syndrome (APDS) doctors in The United Kingdom?

    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 Activated PI3K Delta Syndrome (APDS) doctors in The United Kingdom?

    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 an Activated PI3K Delta Syndrome (APDS) doctor in The United Kingdom?

    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 Activated PI3K Delta Syndrome (APDS) doctor search results page. 

    Why is it important to get a second opinion from a different Activated PI3K Delta Syndrome (APDS) 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 an Activated PI3K Delta Syndrome (APDS) doctor in The United Kingdom?

    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 Activated PI3K Delta Syndrome (APDS) 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 Activated PI3K Delta Syndrome (APDS) 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 Activated PI3K Delta Syndrome (APDS) doctors in The United Kingdom?

    Look for the filter feature on the left side of the Activated PI3K Delta Syndrome (APDS) 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 an Activated PI3K Delta Syndrome (APDS) doctor that offers video calls?

    Look for the filter feature on the left-side of the Activated PI3K Delta Syndrome (APDS) 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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