Filters

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

    Last Updated: 10/30/2025

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

    MediFind found 37 doctor with experience in Histiocytosis near Orange, CA. Of these, 31 are Experienced and 6 are Advanced.

    Location
    LocationClose
    37 providers found
      Experienced in Histiocytosis
      Experienced in Histiocytosis
      2501 East Chapman Avenue, Suite 301, 
      Orange, CA 
       (3.9 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Catherine Nguyen is a Dermatologist in Orange, California. Dr. Nguyen is rated as an Experienced provider by MediFind in the treatment of Histiocytosis. Her top areas of expertise are Syringoma, Actinic Keratosis, Melanoma, and Epidermoid Cyst. Dr. Nguyen is currently accepting new patients.

      Advanced in Histiocytosis
      Pediatric Hematology Oncology
      Advanced in Histiocytosis
      Pediatric Hematology Oncology
      1201 West La Veta Avenue, 
      Orange, CA 
       (0.8 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Lilibeth Ramilo-Torno is a Pediatric Hematologist Oncology provider in Orange, California. Dr. Ramilo-Torno is rated as an Advanced provider by MediFind in the treatment of Histiocytosis. Her top areas of expertise are Acute Lymphoblastic Leukemia (ALL), Langerhans Cell Histiocytosis, Hepatoblastoma, and Osteosarcoma. Dr. Ramilo-Torno is currently accepting new patients.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Advanced in Histiocytosis
      Pediatric Hematology Oncology
      Advanced in Histiocytosis
      Pediatric Hematology Oncology
      1201 West La Veta Avenue, 
      Orange, CA 
       (0.8 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Mariko Sato is a Pediatric Hematologist Oncology provider in Orange, California. Dr. Sato is rated as an Advanced provider by MediFind in the treatment of Histiocytosis. Her top areas of expertise are Glioma, Medulloblastoma, Hepatoblastoma, Embryonal Tumor with Multilayered Rosettes, and Bone Marrow Aspiration. Dr. Sato is currently accepting new patients.

      Learn about our expert tiers
      Advanced in Histiocytosis
      Pediatric Hematology Oncology
      Advanced in Histiocytosis
      Pediatric Hematology Oncology
      1201 West La Veta Avenue, 
      Orange, CA 
       (0.8 miles away)
      Languages Spoken:
      English

      Carol Lin is a Pediatric Hematologist Oncology provider in Orange, California. Dr. Lin is rated as an Advanced provider by MediFind in the treatment of Histiocytosis. Her top areas of expertise are Acute Lymphoblastic Leukemia (ALL), Osteosarcoma, Virus Associated Hemophagocytic Syndrome, and Hemophagocytic Lymphohistiocytosis.

      Advanced in Histiocytosis
      Advanced in Histiocytosis

      Uci Department Of Dermatology

      101 The City Dr S, 
      Orange, CA 
       (2.0 miles away)
      Languages Spoken:
      English

      Janellen Smith is a Dermatologist in Orange, California. Dr. Smith is rated as an Advanced provider by MediFind in the treatment of Histiocytosis. Her top areas of expertise are Melanoma, Multicentric Reticulohistiocytosis, Mycosis Fungoides, and Acute Febrile Neutrophilic Dermatosis.

      Advanced in Histiocytosis
      Hematology Oncology | Hematology | Oncology
      Advanced in Histiocytosis
      Hematology Oncology | Hematology | Oncology

      Uc Regents

      101 The City Dr S, Uci Dept Of Medicine, 
      Orange, CA 
       (2.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Matthew Keating is a Hematologist Oncology specialist and a Hematologist in Orange, California. Dr. Keating is rated as an Advanced provider by MediFind in the treatment of Histiocytosis. His top areas of expertise are Thrombocytopenia, Anemia, Rosai-Dorfman Disease, and Sea-Blue Histiocytosis.

      Christiane S. Querfeld
      Experienced in Histiocytosis
      Experienced in Histiocytosis

      City Of Hope Medical Foundation

      1601 Avocado Ave, 
      Newport Beach, CA 
       (12.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Christiane Querfeld is a Dermatologist in Newport Beach, California. Dr. Querfeld is rated as an Experienced provider by MediFind in the treatment of Histiocytosis. Her top areas of expertise are Mycosis Fungoides, Cutaneous T-Cell Lymphoma (CTCL), T-Cell Lymphoma, and Sezary Syndrome.

      Experienced in Histiocytosis
      Dermatology
      Experienced in Histiocytosis
      Dermatology
      1310 W Stewart Dr, Suite 507, 
      Orange, CA 
       (0.8 miles away)
      Languages Spoken:
      English

      Heidi Goodarzi is a Dermatologist in Orange, California. Dr. Goodarzi is rated as an Experienced provider by MediFind in the treatment of Histiocytosis. Her top areas of expertise are Hypomelanotic Disorder, Dyschromatosis Symmetrica Hereditaria, Griscelli Syndrome, and Dyschromatosis Universalis Hereditaria.

      Experienced in Histiocytosis
      Pediatric Hematology Oncology
      Experienced in Histiocytosis
      Pediatric Hematology Oncology
      1201 West La Veta Avenue, 
      Orange, CA 
       (0.8 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Josephine Haduong is a Pediatric Hematologist Oncology provider in Orange, California. Dr. Haduong is rated as an Experienced provider by MediFind in the treatment of Histiocytosis. Her top areas of expertise are Rhabdomyosarcoma, Hepatoblastoma, Acute Lymphoblastic Leukemia (ALL), and Neuroblastoma. Dr. Haduong is currently accepting new patients.

      Experienced in Histiocytosis
      Pediatric Hematology Oncology
      Experienced in Histiocytosis
      Pediatric Hematology Oncology
      1201 West La Veta Avenue, 
      Orange, CA 
       (0.8 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Elyssa Rubin is a Pediatric Hematologist Oncology provider in Orange, California. Dr. Rubin is rated as an Experienced provider by MediFind in the treatment of Histiocytosis. Her top areas of expertise are Ewing Sarcoma, Osteosarcoma, Neuroblastoma, Acute Lymphoblastic Leukemia (ALL), and Bone Marrow Aspiration. Dr. Rubin is currently accepting new patients.

      Experienced in Histiocytosis
      Pediatric Hematology Oncology
      Experienced in Histiocytosis
      Pediatric Hematology Oncology
      1201 West La Veta Avenue, 
      Orange, CA 
       (0.8 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Van Huynh is a Pediatric Hematologist Oncology provider in Orange, California. Dr. Huynh is rated as an Experienced provider by MediFind in the treatment of Histiocytosis. Her top areas of expertise are Acute Lymphoblastic Leukemia (ALL), Hemophagocytic Lymphohistiocytosis, Virus Associated Hemophagocytic Syndrome, and Febrile Neutropenia. Dr. Huynh is currently accepting new patients.

      Experienced in Histiocytosis
      Pediatric Hematology Oncology
      Experienced in Histiocytosis
      Pediatric Hematology Oncology
      1201 West La Veta Avenue, 
      Orange, CA 
       (0.8 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Jamie Frediani is a Pediatric Hematologist Oncology provider in Orange, California. Dr. Frediani is rated as an Experienced provider by MediFind in the treatment of Histiocytosis. Her top areas of expertise are Acute Lymphoblastic Leukemia (ALL), Febrile Neutropenia, Hepatoblastoma, and Leukemia. Dr. Frediani is currently accepting new patients.

      Experienced in Histiocytosis
      Pediatric Hematology Oncology
      Experienced in Histiocytosis
      Pediatric Hematology Oncology
      1201 West La Veta Avenue, 
      Orange, CA 
       (0.8 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Pournima Navalkele is a Pediatric Hematologist Oncology provider in Orange, California. Dr. Navalkele is rated as an Experienced provider by MediFind in the treatment of Histiocytosis. Her top areas of expertise are Medulloblastoma, Glioma, Acute Lymphoblastic Leukemia (ALL), and Ganglioglioma. Dr. Navalkele is currently accepting new patients.

      Experienced in Histiocytosis
      Pediatric Hematology Oncology
      Experienced in Histiocytosis
      Pediatric Hematology Oncology
      1201 West La Veta Avenue, 
      Orange, CA 
       (0.8 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Agnes Horvath is a Pediatric Hematologist Oncology provider in Orange, California. Dr. Horvath is rated as an Experienced provider by MediFind in the treatment of Histiocytosis. Her top areas of expertise are Acute Lymphoblastic Leukemia (ALL), Hepatoblastoma, Diencephalic Syndrome, and Osteosarcoma. Dr. Horvath is currently accepting new patients.

      Experienced in Histiocytosis
      Pediatric Hematology Oncology
      Experienced in Histiocytosis
      Pediatric Hematology Oncology
      1201 West La Veta Avenue, 
      Orange, CA 
       (0.8 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Rishikesh Chavan is a Pediatric Hematologist Oncology provider in Orange, California. Dr. Chavan is rated as an Experienced provider by MediFind in the treatment of Histiocytosis. His top areas of expertise are Acute Lymphoblastic Leukemia (ALL), Hemophagocytic Lymphohistiocytosis, Virus Associated Hemophagocytic Syndrome, Graft Versus Host Disease (GvHD), and Bone Marrow Transplant. Dr. Chavan is currently accepting new patients.

      Experienced in Histiocytosis
      Hematology Oncology | Hematology | Oncology
      Experienced in Histiocytosis
      Hematology Oncology | Hematology | Oncology

      Uc Regents

      101 The City Dr S, 
      Orange, CA 
       (2.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Elizabeth Brem is a Hematologist Oncology specialist and a Hematologist in Orange, California. Dr. Brem is rated as an Experienced provider by MediFind in the treatment of Histiocytosis. Her top areas of expertise are Non-Hodgkin Lymphoma, Diffuse Large B-Cell Lymphoma (DLBCL), Large-Cell Immunoblastic Lymphoma, Bone Marrow Aspiration, and Bone Marrow Transplant.

      Experienced in Histiocytosis
      Hematology Oncology | Hematology | Oncology
      Experienced in Histiocytosis
      Hematology Oncology | Hematology | Oncology

      Uc Regents

      101 The City Dr S, 
      Orange, CA 
       (2.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Lauren Pinter-Brown is a Hematologist Oncology specialist and a Hematologist in Orange, California. Dr. Pinter-Brown is rated as an Experienced provider by MediFind in the treatment of Histiocytosis. Her top areas of expertise are T-Cell Lymphoma, Mycosis Fungoides, Peripheral T-Cell Lymphoma, Non-Hodgkin Lymphoma, and Bone Marrow Transplant.

      Experienced in Histiocytosis
      Hematology Oncology | Hematology | Oncology
      Experienced in Histiocytosis
      Hematology Oncology | Hematology | Oncology

      Uc Regents

      101 The City Dr S, 
      Orange, CA 
       (2.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Piyanuch Kongtim is a Hematologist Oncology specialist and a Hematologist in Orange, California. Dr. Kongtim is rated as an Experienced provider by MediFind in the treatment of Histiocytosis. Her top areas of expertise are Leukemia, Acute Myeloid Leukemia (AML), Graft Versus Host Disease (GvHD), Bone Marrow Transplant, and Bone Graft.

      Experienced in Histiocytosis
      Experienced in Histiocytosis

      Regents Of The University Of California

      101 The City Dr S, Uci Dept Of Pathology, 
      Orange, CA 
       (2.0 miles away)
      Experience:
      8+ years
      Languages Spoken:
      English

      Ashley Gamayo is a Hematologist in Orange, California. Dr. Gamayo has been practicing medicine for over 8 years and is rated as an Experienced provider by MediFind in the treatment of Histiocytosis. Her top areas of expertise are Plasmacytoma, Histiocytosis, Reticulohistiocytoma, and Chronic Lymphocytic Leukemia (CLL).

      Experienced in Histiocytosis
      Hematology Oncology | Hematology | Oncology
      Experienced in Histiocytosis
      Hematology Oncology | Hematology | Oncology

      Uc Regents

      101 The City Dr S, Uci Dept Of Medicine, 
      Orange, CA 
       (2.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Stefan Ciurea is a Hematologist Oncology specialist and a Hematologist in Orange, California. Dr. Ciurea is rated as an Experienced provider by MediFind in the treatment of Histiocytosis. His top areas of expertise are Acute Myeloid Leukemia (AML), Graft Versus Host Disease (GvHD), Leukemia, Bone Marrow Transplant, and Bone Marrow Aspiration.

      Showing 1-20 of 37

      Last Updated: 10/30/2025

      What is the definition of Histiocytosis?

      Histiocytosis is a general name for a group of disorders or "syndromes" that involve an abnormal increase in the number of specialized white blood cells that are called histiocytes.

      Recently, new knowledge about this family of diseases has led experts to develop a new classification. Five categories have been proposed:

      • L group -- includes Langerhans cell histiocytosis and Erdheim-Chester disease
      • C group -- includes non-Langerhans cell histiocytosis that involves the skin
      • M group -- includes malignant histiocytosis
      • R group -- includes Rosai-Dorfman disease
      • H Group -- includes hemophagocytic lymphohistiocytosis

      This article focuses only on the L group, which includes Langerhans cell histiocytosis and Erdheim-Chester disease.

      When should I see a Histiocytosis doctor near Orange, 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 Histiocytosis doctor near Orange, 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 Histiocytosis doctors near Orange, 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 Histiocytosis doctors near Orange, 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 Histiocytosis doctor near Orange, 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 Histiocytosis doctor search results page. 

      Why is it important to get a second opinion from a different Histiocytosis 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 Histiocytosis doctor near Orange, 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 Histiocytosis 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 Histiocytosis 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 Histiocytosis doctors near Orange, CA?

      Look for the filter feature on the left side of the Histiocytosis 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 Histiocytosis doctor that offers video calls?

      Look for the filter feature on the left-side of the Histiocytosis 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