Filters

Specialty
Additional Specialty
Distance
    Gender
    Insurance
    Availability
    Language
    Years of Experience
    Level of Expertise

    Last Updated: 01/09/2026

    Save doctors for later
    Sign Up
    Not sure about your diagnosis?
    Check Your Symptoms
    Already have a doctor?
    Find A Second Opinion

    MediFind found 24 doctor with experience in Activated PI3K Delta Syndrome (APDS) near The United Kingdom. Of these, 19 are Experienced, 2 are Advanced, 2 are Distinguished and 1 are Elite.

    Location
    LocationClose
    24 providers found
      Elite in Activated PI3K Delta Syndrome (APDS)

      Tanya I. Coulter
      Elite in Activated PI3K Delta Syndrome (APDS)

      Tanya I. Coulter
      Belfast, NIR, GB 

      Tanya Coulter practices in Belfast, United Kingdom. Ms. Coulter is rated as an Elite expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). Her top areas of expertise are Activated PI3K Delta Syndrome (APDS), Lymphoid Hyperplasia, X-Linked Agammaglobulinemia, and Primary Immunodeficiency (PID).

      Distinguished in Activated PI3K Delta Syndrome (APDS)

      Claire D. Booth
      Distinguished in Activated PI3K Delta Syndrome (APDS)

      Claire D. Booth

      Great Ormond Street Hospital For Sick Children NHS Foundation Trust

      London, ENG, GB 

      Claire Booth practices in London, United Kingdom. Ms. Booth is rated as a Distinguished expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). Her top areas of expertise are X-Linked Lymphoproliferative Disease, Severe Combined Immunodeficiency (SCID), Adenosine Deaminase Deficiency, Leukocyte Adhesion Deficiency Type 1, and Bone Marrow Transplant.

      Distinguished in Activated PI3K Delta Syndrome (APDS)

      Alison M. Condliffe
      Distinguished in Activated PI3K Delta Syndrome (APDS)

      Alison M. Condliffe
      Sheffield, ENG, GB 

      Alison Condliffe practices in Sheffield, United Kingdom. Ms. Condliffe is rated as a Distinguished expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). Her top areas of expertise are Activated PI3K Delta Syndrome (APDS), Primary Immunodeficiency (PID), Common Variable Immune Deficiency, and Empyema.

      Learn about our expert tiers
      Advanced in Activated PI3K Delta Syndrome (APDS)

      Klaus Okkenhaug
      Advanced in Activated PI3K Delta Syndrome (APDS)

      Klaus Okkenhaug
      Robinson Way, 
      Cambridge, ENG, GB 

      Klaus Okkenhaug practices in Cambridge, United Kingdom. Mr. Okkenhaug is rated as an Advanced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). His top areas of expertise are Lymphoid Hyperplasia, Activated PI3K Delta Syndrome (APDS), Lymphofollicular Hyperplasia, and Primary Immunodeficiency (PID).

      Advanced in Activated PI3K Delta Syndrome (APDS)

      Sergey Nejentsev
      Advanced in Activated PI3K Delta Syndrome (APDS)

      Sergey Nejentsev
      Cambridge, ENG, GB 

      Sergey Nejentsev practices in Cambridge, United Kingdom. Mr. Nejentsev is rated as an Advanced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). His top areas of expertise are Lymphoid Hyperplasia, Activated PI3K Delta Syndrome (APDS), Ciliary Dyskinesia-Bronchiectasis, and Lymphofollicular Hyperplasia.

      Andrew R. Gennery
      Experienced in Activated PI3K Delta Syndrome (APDS)

      Andrew R. Gennery
      Experienced in Activated PI3K Delta Syndrome (APDS)

      Andrew R. Gennery
      Queen Victoria Road, 
      Newcastle Upon Tyne, ENG, GB 

      Andrew Gennery practices 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). His top areas of expertise are Primary Immunodeficiency (PID), Severe Combined Immunodeficiency (SCID), Chronic Granulomatous Disease, Bone Marrow Transplant, and Heart Transplant.

      Judith M. Breuer
      Experienced in Activated PI3K Delta Syndrome (APDS)

      Judith M. Breuer
      Experienced in Activated PI3K Delta Syndrome (APDS)

      Judith M. Breuer
      Gower Street, 
      London, ENG, GB 

      Judith Breuer practices in London, United Kingdom. Ms. Breuer is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). Her top areas of expertise are Shingles, Chickenpox, Cytomegalovirus Infection, Oral Herpes, and Bone Marrow Transplant.

      Experienced in Activated PI3K Delta Syndrome (APDS)

      Andrew J. Cant
      Experienced in Activated PI3K Delta Syndrome (APDS)

      Andrew J. Cant
      Newcastle Upon Tyne, ENG, GB 

      Andrew Cant practices 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). His top areas of expertise are Primary Immunodeficiency (PID), Severe Combined Immunodeficiency (SCID), ZAP70-Related Severe Combined Immunodeficiency, Chronic Granulomatous Disease, and Bone Marrow Transplant.

      Experienced in Activated PI3K Delta Syndrome (APDS)

      Clare A. Stokes
      Experienced in Activated PI3K Delta Syndrome (APDS)

      Clare A. Stokes
      Sheffield, ENG, GB 

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

      Experienced in Activated PI3K Delta Syndrome (APDS)

      Nuria Clemente-Sanchez
      Experienced in Activated PI3K Delta Syndrome (APDS)

      Nuria Clemente-Sanchez
      City St George's, 
      London, ENG, GB 

      Nuria Clemente-Sanchez practices in London, United Kingdom. Ms. Clemente-Sanchez is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). Her top areas of expertise are Zika Virus Disease, Achalasia Microcephaly Syndrome, Microcephaly, and Cortical Dysplasia.

      Experienced in Activated PI3K Delta Syndrome (APDS)

      Zohreh Nademi
      Experienced in Activated PI3K Delta Syndrome (APDS)

      Zohreh Nademi
      Newcastle Upon Tyne, ENG, GB 

      Zohreh Nademi practices in Newcastle Upon Tyne, United Kingdom. Nademi is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). Their top areas of expertise are Primary Immunodeficiency (PID), Severe Combined Immunodeficiency (SCID), ZAP70-Related Severe Combined Immunodeficiency, IPEX Syndrome, and Bone Marrow Transplant.

      Experienced in Activated PI3K Delta Syndrome (APDS)

      Stone Elworthy
      Experienced in Activated PI3K Delta Syndrome (APDS)

      Stone Elworthy
      Sheffield, ENG, GB 

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

      Experienced in Activated PI3K Delta Syndrome (APDS)

      Tomasz K. Prajsnar
      Experienced in Activated PI3K Delta Syndrome (APDS)

      Tomasz K. Prajsnar
      Sheffield, ENG, GB 

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

      Experienced in Activated PI3K Delta Syndrome (APDS)

      Kanchan V. Rao
      Experienced in Activated PI3K Delta Syndrome (APDS)

      Kanchan V. Rao

      Great Ormond Street Hospital

      London, ENG, GB 

      Kanchan Rao practices in London, United Kingdom. Ms. Rao is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). Her top areas of expertise are Hemophagocytic Lymphohistiocytosis, Primary Immunodeficiency (PID), Chronic Graft Versus Host Disease (cGvHD), Bone Marrow Transplant, and Bone Graft.

      Experienced in Activated PI3K Delta Syndrome (APDS)

      Deborah J. Rosendahl-Morris
      Experienced in Activated PI3K Delta Syndrome (APDS)

      Deborah J. Rosendahl-Morris
      Guy's And St Thomas' NHS Trust, 
      London, ENG, GB 

      Deborah Rosendahl-Morris practices in London, United Kingdom. Ms. Rosendahl-Morris is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). Her top areas of expertise are Dextrocardia, Dextrocardia with Situs Inversus, Situs Inversus, and Ciliary Dyskinesia-Bronchiectasis.

      Experienced in Activated PI3K Delta Syndrome (APDS)

      Sophie Hambleton
      Experienced in Activated PI3K Delta Syndrome (APDS)

      Sophie Hambleton
      Newcastle Upon Tyne, ENG, GB 

      Sophie Hambleton practices in Newcastle Upon Tyne, United Kingdom. Ms. Hambleton is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). Her top areas of expertise are Primary Immunodeficiency (PID), Severe Combined Immunodeficiency (SCID), Omenn Syndrome, ZAP70-Related Severe Combined Immunodeficiency, and Bone Marrow Transplant.

      Experienced in Activated PI3K Delta Syndrome (APDS)

      Noemie M. Hamilton
      Experienced in Activated PI3K Delta Syndrome (APDS)

      Noemie M. Hamilton
      York, ENG, GB 

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

      Experienced in Activated PI3K Delta Syndrome (APDS)

      Mary A. Slatter
      Experienced in Activated PI3K Delta Syndrome (APDS)

      Mary A. Slatter
      Newcastle Upon Tyne, ENG, GB 

      Mary Slatter practices 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). Her top areas of expertise are Primary Immunodeficiency (PID), Severe Combined Immunodeficiency (SCID), Chronic Granulomatous Disease, Wiskott-Aldrich Syndrome, and Bone Marrow Transplant.

      Experienced in Activated PI3K Delta Syndrome (APDS)

      Justin Penner
      Experienced in Activated PI3K Delta Syndrome (APDS)

      Justin Penner

      Great Ormond Street Hospital For Children

      London, ENG, GB 

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

      Experienced in Activated PI3K Delta Syndrome (APDS)

      Stephen A. Renshaw
      Experienced in Activated PI3K Delta Syndrome (APDS)

      Stephen A. Renshaw
      Firth Court, 
      Sheffield, ENG, GB 

      Stephen Renshaw practices in Sheffield, United Kingdom. Mr. Renshaw is rated as an Experienced expert by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). His top areas of expertise are 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 24

      Last Updated: 01/09/2026

      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 do I find the best Activated PI3K Delta Syndrome (APDS) doctor in The United Kingdom?

      You can find an Activated PI3K Delta Syndrome (APDS) doctor in any of the 10 largest U.S. cities by clicking below:

      Activated PI3K Delta Syndrome (APDS) doctor near New York, NY
      Activated PI3K Delta Syndrome (APDS) doctor near Los Angeles, CA
      Activated PI3K Delta Syndrome (APDS) doctor near Chicago, IL
      Activated PI3K Delta Syndrome (APDS) doctor near Houston, TX
      Activated PI3K Delta Syndrome (APDS) doctor near Phoenix, AZ
      Activated PI3K Delta Syndrome (APDS) doctor near Philadelphia, PA
      Activated PI3K Delta Syndrome (APDS) doctor near Atlanta, GA
      Activated PI3K Delta Syndrome (APDS) doctor near Boston, MA
      Activated PI3K Delta Syndrome (APDS) doctor near Dallas, TX
      Activated PI3K Delta Syndrome (APDS) doctor near San Jose, CA

      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 

      Read more about our Content Policy.