The 20 Best Factor 11 Deficiency Doctors Near Me in Brooklyn, NY

Find the Top Factor 11 Deficiency Experts and Specialists

The 20 Best Factor 11 Deficiency Doctors near Brooklyn, NY

Last Updated: 02/22/2026

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MediFind found 103 doctor with experience in Factor 11 Deficiency near Brooklyn, NY. Of these, 79 are Experienced, 20 are Advanced, 3 are Distinguished and 1 are Elite.

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103 providers found
    Elite in Factor 11 Deficiency
    Elite in Factor 11 Deficiency

    Mount Sinai West

    1000 10th Ave Ste 3A-35, 
    New York, NY 
     (6.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Lawrence Cytryn is a Hematologist in New York, New York. Dr. Cytryn is rated as an Elite provider by MediFind in the treatment of Factor 11 Deficiency. His top areas of expertise are Factor 11 Deficiency, Sickle Cell Disease, Acquired Agranulocytosis, and Idiopathic Neutropenia. Dr. Cytryn is currently accepting new patients.

    Distinguished in Factor 11 Deficiency
    Hematology | Oncology
    Distinguished in Factor 11 Deficiency
    Hematology | Oncology

    Lower Manhattan Hematology & Oncology

    156 William St Fl 6, 
    New York, NY 
     (3.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Raymond Pastore is a Hematologist and an Oncologist in New York, New York. Dr. Pastore is rated as a Distinguished provider by MediFind in the treatment of Factor 11 Deficiency. His top areas of expertise are Polycythemia Vera, Blood Clots, Childhood Iron Deficiency Anemia, Factor 11 Deficiency, and Bone Marrow Aspiration. Dr. Pastore is currently accepting new patients.

    Distinguished in Factor 11 Deficiency
    Internal Medicine
    Distinguished in Factor 11 Deficiency
    Internal Medicine

    Memorial Sloan Kettering Cancer Center

    530 East 74th Street, 
    New York, NY 
     (6.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sridevi Rajeeve is an Internal Medicine provider in New York, New York. Dr. Rajeeve is rated as a Distinguished provider by MediFind in the treatment of Factor 11 Deficiency. Her top areas of expertise are Factor 11 Deficiency, Relapsed Refractory Multiple Myeloma (RRMM), Multiple Myeloma, Hodgkin Lymphoma, and Bone Marrow Transplant.

    Learn about our expert tiers
    Amory V. Novoselac
    Advanced in Factor 11 Deficiency
    Hematology | Oncology
    Advanced in Factor 11 Deficiency
    Hematology | Oncology
    12 East 86th Street, Ofc 4, 
    New York, NY 
     (7.1 miles away)
    Languages Spoken:
    English, Croatian, French, German

    Dr Novoselac earned his medical degree from University of Zagreb in 1996, and he completed his Internal Medicine residency and Hematology / Oncology fellowship at Lenox HIll Hospital in New York.Dr Novoselac is an Attending Physician at Lenox Hill Hospital and he participates in education and training of medical students, residents and fellow physicians.He is a member of the American Society of Clinical Oncology, American Society of Hematology, American College of Physicians and NY State Medical Society. Dr Novoselac provides care for a range of benign and malignant blood disorders as well as solid tumors, with a special clinical focus on lung cancer. Dr. Novoselac is rated as an Advanced provider by MediFind in the treatment of Factor 11 Deficiency. His top areas of expertise are Blood Clots, Pleuropulmonary Blastoma, Factor 11 Deficiency, and Anemia.

    Brenda D. Panzera
    Advanced in Factor 11 Deficiency
    Hematology | Oncology
    Advanced in Factor 11 Deficiency
    Hematology | Oncology
    12 East 86th Street, Ofc 4, 
    New York, NY 
     (7.1 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Brenda Panzera is a Hematologist and an Oncologist in New York, New York. Dr. Panzera is rated as an Advanced provider by MediFind in the treatment of Factor 11 Deficiency. Her top areas of expertise are Blood Clots, Breast Cancer, Paget Disease of the Breast, and Anemia.

    Advanced in Factor 11 Deficiency
    Advanced in Factor 11 Deficiency

    Mount Sinai Union Square

    10 Union Sq E, 
    New York, NY 
     (4.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Leonard Naymagon is a Hematologist in New York, New York. Dr. Naymagon is rated as an Advanced provider by MediFind in the treatment of Factor 11 Deficiency. His top areas of expertise are Venous Thromboembolism (VTE), Hemophagocytic Lymphohistiocytosis, Thrombocytopenia, and Idiopathic Neutropenia. Dr. Naymagon is currently accepting new patients.

    Advanced in Factor 11 Deficiency
    Advanced in Factor 11 Deficiency

    Office

    240 E 38th St Fl 19, 
    New York, NY 
     (5.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Bruce Raphael is a Hematologist in New York, New York. Dr. Raphael is rated as an Advanced provider by MediFind in the treatment of Factor 11 Deficiency. His top areas of expertise are Essential Thrombocythemia, Chronic Lymphocytic Leukemia (CLL), Non-Hodgkin Lymphoma, Chronic B-Cell Leukemia (CBCL), and Bone Marrow Aspiration.

    Advanced in Factor 11 Deficiency
    Advanced in Factor 11 Deficiency

    NYU Langone PCC BMT Center

    610 2nd Ave, 
    New York, NY 
     (5.0 miles away)
    Languages Spoken:
    English

    Kenneth Hymes is a Hematologist in New York, New York. Dr. Hymes is rated as an Advanced provider by MediFind in the treatment of Factor 11 Deficiency. His top areas of expertise are Protein S Deficiency, Protein C Deficiency, Congenital Antithrombin 3 Deficiency, Hereditary Resistance to Anti-Vitamin K, and Bone Marrow Aspiration.

    Colette M. Spaccavento
    Experienced in Factor 11 Deficiency
    Hematology | Oncology
    Experienced in Factor 11 Deficiency
    Hematology | Oncology

    Northwell Health Physician Partners Medical Oncology At MEETH

    210 East 64th Street, 4th Floor, 
    New York, NY 
     (6.0 miles away)
    Languages Spoken:
    English

    Colette Spaccavento is a Hematologist and an Oncologist in New York, New York. Dr. Spaccavento is rated as an Experienced provider by MediFind in the treatment of Factor 11 Deficiency. Her top areas of expertise are Thrombocytopenia, Monoclonal Gammopathy of Undetermined Significance (MGUS), Schnitzler Syndrome, and Blood Clots.

    Steven Gruenstein
    Experienced in Factor 11 Deficiency
    Hematology | Oncology | Internal Medicine
    Experienced in Factor 11 Deficiency
    Hematology | Oncology | Internal Medicine
    12 East 86th Street, Ofc 4, 
    New York, NY 
     (7.1 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Steven Gruenstein is a Hematologist and an Oncologist in New York, New York. Dr. Gruenstein is rated as an Experienced provider by MediFind in the treatment of Factor 11 Deficiency. His top areas of expertise are Blood Clots, Anemia, Malabsorption, and Familial Colorectal Cancer.

    Distinguished in Factor 11 Deficiency
    Hematology
    Distinguished in Factor 11 Deficiency
    Hematology

    The Ruttenberg Treatment Center

    1470 Madison Ave, 
    New York, NY 
     (7.8 miles away)
    Languages Spoken:
    English

    Kevin Troy is a Hematologist in New York, New York. Dr. Troy is rated as a Distinguished provider by MediFind in the treatment of Factor 11 Deficiency. His top areas of expertise are Factor 11 Deficiency, Thrombocytopenia, Idiopathic Neutropenia, Shwartzman Phenomenon, and Bone Marrow Aspiration.

    Terenig Terjanian
    Experienced in Factor 11 Deficiency
    Hematology | Oncology
    Experienced in Factor 11 Deficiency
    Hematology | Oncology

    Northwell Health Florina Cancer Center

    475 Seaview Avenue, 
    Staten Island, NY 
     (9.9 miles away)
    Languages Spoken:
    English, Armenian, French

    Terenig Terjanian is a Hematologist and an Oncologist in Staten Island, New York. Dr. Terjanian is rated as an Experienced provider by MediFind in the treatment of Factor 11 Deficiency. His top areas of expertise are Chronic B-Cell Leukemia (CBCL), Chronic Lymphocytic Leukemia (CLL), Richter Syndrome, Breast Cancer, and Bone Marrow Aspiration.

    Meekoo Dhar
    Experienced in Factor 11 Deficiency
    Hematology | Oncology
    Experienced in Factor 11 Deficiency
    Hematology | Oncology

    Northwell Health Florina Cancer Center

    475 Seaview Avenue, 
    Staten Island, NY 
     (9.9 miles away)
    Languages Spoken:
    English

    Meekoo Dhar is a Hematologist and an Oncologist in Staten Island, New York. Dr. Dhar is rated as an Experienced provider by MediFind in the treatment of Factor 11 Deficiency. Her top areas of expertise are Cervical Cancer, Breast Cancer, Paget Disease of the Breast, Ovarian Carcinosarcoma, and Salpingo-Oophorectomy.

    Experienced in Factor 11 Deficiency
    Hematology
    Experienced in Factor 11 Deficiency
    Hematology

    Newyork-Presbyterian Brooklyn Methodist Hospital

    506 6th St, 
    Brooklyn, NY 
     (2.0 miles away)
    Languages Spoken:
    English

    Harvey Dosik is a Hematologist in Brooklyn, New York. Dr. Dosik is rated as an Experienced provider by MediFind in the treatment of Factor 11 Deficiency. His top areas of expertise are Polycythemia Vera, Chronic B-Cell Leukemia (CBCL), Richter Syndrome, and Chronic Lymphocytic Leukemia (CLL).

    Experienced in Factor 11 Deficiency
    Family Medicine
    Experienced in Factor 11 Deficiency
    Family Medicine

    Mount Sinai Doctors Williamsburg

    135 N 7th St, 
    Brooklyn, NY 
     (2.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Elizabeth Enschede is a primary care provider, practicing in Family Medicine in Brooklyn, New York. Dr. Enschede is rated as an Experienced provider by MediFind in the treatment of Factor 11 Deficiency. Her top areas of expertise are Premenstrual Syndrome, Autosomal Recessive Hypotrichosis, Alopecia Areata, and Hyperhidrosis.

    Experienced in Factor 11 Deficiency
    Internal Medicine
    Experienced in Factor 11 Deficiency
    Internal Medicine

    Office

    2044 Ocean Ave Ste A6, 
    Brooklyn, NY 
     (4.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Murray Werzberger is a primary care provider, practicing in Internal Medicine in Brooklyn, New York. Dr. Werzberger is rated as an Experienced provider by MediFind in the treatment of Factor 11 Deficiency. His top areas of expertise are Erectile Dysfunction (ED), Persistent Genital Arousal Disorder, Sitosterolemia, and Ethmoiditis.

    Experienced in Factor 11 Deficiency
    Family Medicine
    Experienced in Factor 11 Deficiency
    Family Medicine

    Office

    1278 60th St, 
    Brooklyn, NY 
     (4.5 miles away)
    Languages Spoken:
    English

    David Rubin is a primary care provider, practicing in Family Medicine in Brooklyn, New York. Dr. Rubin is rated as an Experienced provider by MediFind in the treatment of Factor 11 Deficiency. His top areas of expertise are Colitis, Viral Gastroenteritis, Ulcerative Colitis, Endoscopy, and Colonoscopy.

    Experienced in Factor 11 Deficiency
    Hematology
    Experienced in Factor 11 Deficiency
    Hematology

    Maimonides Medical Center

    6300 8th Ave, 
    Brooklyn, NY 
     (4.7 miles away)
    Languages Spoken:
    English

    Lan Mo is a Hematologist in Brooklyn, New York. Dr. Mo is rated as an Experienced provider by MediFind in the treatment of Factor 11 Deficiency. Her top areas of expertise are Lung Cancer, Pleuropulmonary Blastoma, Small Cell Lung Cancer (SCLC), and Familial Prostate Cancer.

    Experienced in Factor 11 Deficiency
    Hematology
    Experienced in Factor 11 Deficiency
    Hematology

    Maimonides Medical Center

    6300 8th Ave, 
    Brooklyn, NY 
     (4.7 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Jay Lipshitz is a Hematologist in Brooklyn, New York. Dr. Lipshitz is rated as an Experienced provider by MediFind in the treatment of Factor 11 Deficiency. His top areas of expertise are Gastroesophageal Junction Cancer, Familial Colorectal Cancer, Chronic Myelogenous Leukemia (CML), Philadelphia-Negative Chronic Myeloid Leukemia, and Bone Marrow Aspiration.

    Experienced in Factor 11 Deficiency
    Internal Medicine
    Experienced in Factor 11 Deficiency
    Internal Medicine

    Office

    317 E 34th St, 
    New York, NY 
     (4.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Edward Barnes is a primary care provider, practicing in Internal Medicine in New York, New York. Dr. Barnes is rated as an Experienced provider by MediFind in the treatment of Factor 11 Deficiency. His top areas of expertise are High Cholesterol, Familial Combined Hyperlipidemia, Xanthoma, and Familial Hypertension.

    Showing 1-20 of 103

    Last Updated: 02/22/2026

    What is the definition of Factor 11 Deficiency?

    Factor XI deficiency is a disorder that can cause abnormal bleeding due to a shortage (deficiency) of the factor XI protein, which is involved in blood clotting. This condition is classified as either partial or severe based on the degree of deficiency of the factor XI protein. However, regardless of the severity of the protein deficiency, most affected individuals have relatively mild bleeding problems, and some people with this disorder have few if any symptoms. The most common feature of factor XI deficiency is prolonged bleeding after trauma or surgery, especially involving the inside of the mouth and nose (oral and nasal cavities) or the urinary tract. If the bleeding is left untreated after surgery, solid swellings consisting of congealed blood (hematomas) can develop in the surgical area.

    When should I see a Factor 11 Deficiency doctor near Brooklyn, NY?

    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 Factor 11 Deficiency doctor near Brooklyn, NY?

    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 Factor 11 Deficiency doctors near Brooklyn, NY?

    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 Factor 11 Deficiency doctors near Brooklyn, NY?

    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 Factor 11 Deficiency doctor near Brooklyn, NY?

    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 Factor 11 Deficiency doctor search results page. 

    Why is it important to get a second opinion from a different Factor 11 Deficiency 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 Factor 11 Deficiency doctor near Brooklyn, NY?

    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 Factor 11 Deficiency 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 Factor 11 Deficiency 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 Factor 11 Deficiency doctors near Brooklyn, NY?

    Look for the filter feature on the left side of the Factor 11 Deficiency 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 Factor 11 Deficiency doctor that offers video calls?

    Look for the filter feature on the left-side of the Factor 11 Deficiency 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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