The 20 Best Activated PI3K Delta Syndrome (APDS) Doctors Near Me in Maryland, US

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

Last Updated: 09/19/2026

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MediFind found 28 doctor with experience in Activated PI3K Delta Syndrome (APDS) near Maryland, US. Of these, 23 are Experienced, 4 are Advanced and 1 are Distinguished.

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28 providers found
    Distinguished in Activated PI3K Delta Syndrome (APDS)
    Allergy and Immunology
    Distinguished in Activated PI3K Delta Syndrome (APDS)
    Allergy and Immunology
    Referral may be required

    Office

    9210 Corporate Blvd Ste 440, 
    Rockville, MD 
    Languages Spoken:
    English

    Gulbu Uzel is an Allergy and Immunologist practicing medicine in Rockville, Maryland. Dr. Uzel is rated as a Distinguished provider 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 Primary Immunodeficiency (PID), Activated PI3K Delta Syndrome (APDS), X-Linked Severe Combined Immunodeficiency, and Hyper IgE Syndrome.

    Advanced in Activated PI3K Delta Syndrome (APDS)
    Family Medicine
    Advanced in Activated PI3K Delta Syndrome (APDS)
    Family Medicine

    Frederick Health Crestwood

    7211 Bank Ct Ste 230, 
    Frederick, MD 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Linda Muehl is a primary care provider, practicing in Family Medicine in Frederick, Maryland. Dr. Muehl is rated as an Advanced provider by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). She is also highly rated in 28 other conditions, according to our data. Her clinical expertise encompasses Hyperlipidemia Type 3, Infant Hyperglycemia, Maturity Onset Diabetes of the Young, and High Cholesterol. Dr. Muehl is currently accepting new patients.

    Advanced in Activated PI3K Delta Syndrome (APDS)
    Internal Medicine
    Advanced in Activated PI3K Delta Syndrome (APDS)
    Internal Medicine

    Mercy Medical Center

    7602 Belair Rd, 
    Nottingham, MD 
    Languages Spoken:
    English, German
    Accepting New Patients

    Marion Kowalewski is a primary care provider, practicing in Internal Medicine in Nottingham, Maryland. Dr. Kowalewski is rated as an Advanced provider by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Hyperlipidemia Type 3, Activated PI3K Delta Syndrome (APDS), and Tracheitis. Dr. Kowalewski is currently accepting new patients.

    Learn about our expert tiers
    Advanced in Activated PI3K Delta Syndrome (APDS)
    Advanced in Activated PI3K Delta Syndrome (APDS)
    Referral may be required

    Office

    10 Center Dr Bldg 10 Rm 2N109, 
    Bethesda, MD 
    Languages Spoken:
    English

    Stefania Pittaluga is a Hematologist practicing medicine in Bethesda, Maryland. Dr. Pittaluga is rated as an Advanced provider by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). She is also highly rated in 29 other conditions, according to our data. Her clinical expertise encompasses Non-Hodgkin Lymphoma, B-Cell Lymphoma, T-Cell Lymphoma, Castleman Disease, and Bone Marrow Transplant.

    Advanced in Activated PI3K Delta Syndrome (APDS)
    Advanced in Activated PI3K Delta Syndrome (APDS)
    Referral may be required

    Atlantic General Hospital Corp.

    9707 Healthway Dr, 
    Berlin, MD 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Rabindra Paul is an Oncologist practicing medicine in Berlin, Maryland. Dr. Paul is rated as an Advanced provider by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). He is also highly rated in 59 other conditions, according to our data. His clinical expertise encompasses Inflammatory Breast Cancer, Colorectal Cancer, Paget Disease of the Breast, Familial Colorectal Cancer, and Bone Marrow Aspiration. Dr. Paul is currently accepting new patients.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Infectious Disease
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Infectious Disease
    Referral may be required

    Office

    Bethesda, MD 
    Languages Spoken:
    English

    Steven Holland is an Infectious Disease provider practicing medicine in Bethesda, Maryland. Dr. Holland is rated as an Experienced provider by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Coccidioidomycosis, Mycobacterium Avium Complex Infections, Pyle Disease, Meningitis, and Endoscopy.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Endocrinology
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Endocrinology
    Referral required

    Johns Hopkins Community Physicians - Downtown Bethesda

    7315 Wisconsin Avenue, Suite 700, Suite 700, 
    Bethesda, MD 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Rosalie Naglieri is an Endocrinologist practicing medicine in Bethesda, Maryland. Dr. Naglieri is rated as an Experienced provider by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). She is also highly rated in 7 other conditions, according to our data. Her clinical expertise encompasses Hypothyroidism, Maturity Onset Diabetes of the Young, Type 2 Diabetes (T2D), and Type 1 Diabetes (T1D). Dr. Naglieri is currently accepting new patients.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Medical Genetics | Pediatrics
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Medical Genetics | Pediatrics
    Referral may be required

    University Of MD Pediatrics Specialty Office

    827 Linden Avenue, Suite M2 C200, 
    Baltimore, MD 
    Languages Spoken:
    English
    Accepting New Patients

    Sofia Ayala is a Medical Genetics specialist and a Pediatrics provider practicing medicine in Baltimore, Maryland. Dr. Ayala is rated as an Experienced provider by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Musculocontractural Ehlers-Danlos Syndrome (mcEDS), Ehlers-Danlos Syndrome (EDS), Carnitine Palmitoyltransferase 1 Deficiency, and Carnitine Palmitoyltransferase 2 Deficiency. Dr. Ayala is board certified in American Board Of Medical Genetics And Genomics - Clinical Genetics (MD), 2021. Dr. Ayala is currently accepting new patients.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Medical Genetics | Pediatrics
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Medical Genetics | Pediatrics
    Referral may be required
    National Institutes Of Health, 49 Convent Drive, 4a62, 
    Bethesda, MD 
    Languages Spoken:
    English

    Peter Mcguire is a Medical Genetics specialist and a Pediatrics provider practicing medicine in Bethesda, Maryland. Dr. Mcguire is rated as an Experienced provider by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Urea Cycle Disorders (UCD), Coenzyme Q Cytochrome C Reductase Deficiency, Activated PI3K Delta Syndrome (APDS), and Ornithine Transcarbamylase Deficiency.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Referral may be required

    Dept Of Transfusion Medicine/Nih Clinical Center

    10 Center Dr, 
    Bethesda, MD 
    Languages Spoken:
    English

    Dimana Dimitrova is a Pediatrics provider practicing medicine in Bethesda, Maryland. Dr. Dimitrova is rated as an Experienced provider by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). Her clinical expertise encompasses Activated PI3K Delta Syndrome (APDS), T-Cell Lymphoma, Folliculitis, and Infantile Neutropenia.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Infectious Disease
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Infectious Disease
    Referral may be required

    Office

    50 Rockville Pike Bldg 50, 
    Bethesda, MD 
    Languages Spoken:
    English

    Jeffrey Cohen is an Infectious Disease provider practicing medicine in Bethesda, Maryland. Dr. Cohen is rated as an Experienced provider by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Mononucleosis, Shingles, Genital Herpes, and Chickenpox.

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

    Mercy Medical Center

    7602 Belair Rd, 
    Baltimore, MD 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Thomas Lynch is a primary care provider, practicing in Internal Medicine in Baltimore, Maryland. Dr. Lynch is rated as an Experienced provider by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Coronary Heart Disease, Colorectal Cancer, and Familial Colorectal Cancer. Dr. Lynch is currently accepting new patients.

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

    Office

    4 Center Dr Bldg 4 Rm B1-03, 
    Bethesda, MD 
    Languages Spoken:
    English

    Thomas Nutman is a primary care provider, practicing in Internal Medicine in Bethesda, Maryland. Dr. Nutman is rated as an Experienced provider by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Secernentea Infections, Helminthiasis, Spirurida Infections, and Childhood Volvulus.

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

    Office

    951 Mount Hermon Rd, 
    Salisbury, MD 
    Languages Spoken:
    English, Tamil
    Accepting New Patients
    Offers Telehealth

    Usha Natesan is a primary care provider, practicing in Internal Medicine in Salisbury, Maryland. Dr. Natesan is rated as an Experienced provider by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). She is also highly rated in 46 other conditions, according to our data. Her clinical expertise encompasses Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, Hypertension, Hip Replacement, and Endoscopy. Dr. Natesan is currently accepting new patients.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Gastroenterology
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Gastroenterology
    Referral may be required

    Suburban Hospital

    8600 Old Georgetown Rd, 
    Bethesda, MD 
    Languages Spoken:
    English

    Theo Heller is a Gastroenterologist practicing medicine in Bethesda, Maryland. Dr. Heller is rated as an Experienced provider by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). He is also highly rated in 20 other conditions, according to our data. His clinical expertise encompasses Hepatitis D, Hepatitis, Portal Hypertension, Gastrectomy, and Endoscopy.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Pediatrics
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Pediatrics
    Referral may be required

    Office

    OP11 Rockville Pike, 
    Bethesda, MD 
    Languages Spoken:
    English

    Helen Su is a Pediatrics provider practicing medicine in Bethesda, Maryland. Dr. Su is rated as an Experienced provider 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 Multisystem Inflammatory Syndrome in Children (MIS-C), Pyle Disease, Chronic Graft Versus Host Disease (cGvHD), and Cerebral Hypoxia.

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

    Southside Medical Care LLC

    102 Williamsport Cir, 
    Salisbury, MD 
    Languages Spoken:
    English

    Syed Jaffery is a primary care provider, practicing in Internal Medicine in Salisbury, Maryland. Dr. Jaffery is rated as an Experienced provider by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). His clinical expertise encompasses Activated PI3K Delta Syndrome (APDS) and Central Sleep Apnea.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Radiology
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Radiology
    Referral may be required

    Suburban Hospital

    8600 Old Georgetown Rd, 
    Bethesda, MD 
    Languages Spoken:
    English
    Accepting New Patients

    Jamie Marko is a Radiologist practicing medicine in Bethesda, Maryland. Dr. Marko is rated as an Experienced provider by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Splenogonadal Fusion Limb Defects Micrognatia, Menkes Disease, Activated PI3K Delta Syndrome (APDS), Thyroid Nodule, and Prostatectomy. Dr. Marko is currently accepting new patients.

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

    Dept Of Transfusion Medicine/Nih Clinical Center

    10 Center Dr, 
    Bethesda, MD 
    Languages Spoken:
    English

    Christopher Koh is a primary care provider, practicing in Internal Medicine in Bethesda, Maryland. Dr. Koh is rated as an Experienced provider by MediFind in the treatment of Activated PI3K Delta Syndrome (APDS). He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Hepatitis D, Hepatitis, Portal Hypertension, Endoscopy, and Colonoscopy.

    Experienced in Activated PI3K Delta Syndrome (APDS)
    Medical Genetics | Pediatrics | Geriatrics
    Experienced in Activated PI3K Delta Syndrome (APDS)
    Medical Genetics | Pediatrics | Geriatrics
    Referral may be required

    Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc

    7190 Crestwood Blvd, 
    Frederick, MD 
    Languages Spoken:
    English, Thai
    Accepting New Patients
    Offers Telehealth

    Pim Suwannarat is a Medical Genetics specialist and a Pediatrics provider practicing medicine in Frederick, Maryland. Dr. Suwannarat is rated as an Experienced provider 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 Triple X Syndrome, Classic Galactosemia, Ehlers-Danlos Syndrome (EDS), and Chromosome 10q Deletion. Dr. Suwannarat is currently accepting new patients.

    Showing 1-20 of 28

    Last Updated: 09/19/2026

    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 Maryland, US?

    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 Maryland, US?

    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 Maryland, US?

    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 Maryland, US?

    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 Maryland, US?

    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 Maryland, US?

    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 Maryland, US?

    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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