JM
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Mascarenhas, Hematology / Oncology Specialist in New York, NY?
Dr. John Mascarenhas, MD is a Hematology / Oncology Specialist, who primarily practices in New York, NY. He is board certified by the American Board of Internal Medicine. Dr. Mascarenhas graduated from New York Medical College and completed his residency at Rhode Island Hospital Brown University. Dr. Mascarenhas is fluent in English and Spanish, and is currently seeing new patients. Dr. Mascarenhas’s practice accepts Medicare, UnitedHealthcare, Cigna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Mascarenhas’s office.
What are Areas of Expertise for Dr. Mascarenhas?
Dr. John Mascarenhas, MD is a highly-rated, board-certified Hematology / Oncology Specialist known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Mascarenhas empowers patients to confidently navigate their health journey, specializing in Clinical Trials, Hematologic Malignancies, Leukemia-Chronic Myeloid, Leukemia-Myeloid, Myeloproliferative Disorders, Polycythemia Rubra Vera, Telemedicine, or comprehensive wellness support. Serving the New York/NY community, Dr. Mascarenhas is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Mascarenhas go to medical school and complete their residency?
Residency: Rhode Island Hospital Brown University
Medical School: New York Medical College
Is Dr. Mascarenhas board certified in Hematology / Oncology Specialist?
Yes, Dr. John Mascarenhas, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Mascarenhas speak?
Dr. Mascarenhas and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Mascarenhas treat?
As a Hematology / Oncology Specialist, Dr. Mascarenhas diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Mascarenhas. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Chronic Myeloproliferative Neoplasm
- Myelofibrosis
- Bone Marrow Disease
- Chronic Myeloproliferative Neoplasms Treatment (PDQ®)
- CMPN
- Myeloproliferative disorder
- Chronic blood cancer
- Primary myelofibrosis
- Chronic idiopathic myelofibrosis
- Bone marrow scarring
ICD-10 Codes:
- D471: Chronic myeloproliferative disease
- D474: Osteomyelofibrosis
Also known as:
- Chronic Myeloid Leukemia
- Acute Myeloid Leukemia
- Acute Lymphoblastic Leukemia
- Acute Myeloid Leukemia in Remission
- Acute Lymphocytic Leukemia in Remission
- Acute Myeloid Leukemia in Relapse
- Acute Leukemia
- Chronic Myelomonocytic Leukemia
- Chronic Myelogenous Leukemia Treatment (PDQ®)
- Acute Lymphocytic Leukemia
- Leukemia
- Myelodysplastic/Myeloproliferative Neoplasms Treatment (PDQ®)
- CML
- Chronic myelogenous leukemia
- Philadelphia chromosome positive leukemia
- AML Leukemia
- Acute Myeloblastic Leukemia
- Acute Myelogenous Leukemia
- ALL
- Acute lymphocytic leukemia
- Lymphoblastic leukemia
- AML Leukemia in Remission
- Acute Myeloblastic Leukemia in Remission
- Acute Myelogenous Leukemia in Remission
- ALL Leukemia in Remission
- Acute Lymphoblastic Leukemia in Remission
- Childhood Leukemia in Remission
- AML Leukemia in Relapse
- Acute Myeloblastic Leukemia in Relapse
- Acute Myelogenous Leukemia in Relapse
- Acute Blood Cancer
- Undifferentiated Acute Leukemia
- Fast-growing Blood Cancer
- CMML
- Myelomonocytic Leukemia
ICD-10 Codes:
- C9210: Chronic myeloid leukemia, BCR/ABL-positive, not having achieved remission
- C9200: Acute myeloblastic leukemia, not having achieved remission
- C9100: Acute lymphoblastic leukemia not having achieved remission
- C9201: Acute myeloblastic leukemia, in remission
- C9101: Acute lymphoblastic leukemia, in remission
- C9202: Acute myeloblastic leukemia, in relapse
- C9500: Acute leukemia of unspecified cell type not having achieved remission
- C9310: Chronic myelomonocytic leukemia not having achieved remission
Also known as:
- Polycythemia vera
- Bone Marrow Disease
- Chronic Myeloproliferative Neoplasms Treatment (PDQ)
- PV
- Primary polycythemia
- Erythremia
ICD-10 Codes:
- D45: Polycythemia vera
Also known as:
- Essential Thrombocythemia
- Thrombocytopenia
- Platelet Disorder
- Essential thrombocythemia
- Chronic Myeloproliferative Neoplasms Treatment (PDQ)
- ET
- Primary Thrombocythemia
- Hemorrhagic Thrombocythemia
- Low platelet count
- Platelet deficiency
- Bleeding disorder
ICD-10 Codes:
- D473: Essential (hemorrhagic) thrombocythemia
- D696: Thrombocytopenia, unspecified
Also known as:
- Other Specific Abnormal Blood Chemistry Results
- Blood
- Specified Blood Chemistry Imbalance
- Unusual Blood Chemistry Findings
- Specific Blood Panel Abnormalities
ICD-10 Codes:
- R7989: Other specified abnormal findings of blood chemistry
Also known as:
- Myelodysplastic Syndrome
- Myelodysplastic Syndromes
- Myelodysplastic Syndromes Treatment (PDQ®)
- MDS
- Preleukemia
- Bone marrow failure disorder
ICD-10 Codes:
- D469: Myelodysplastic syndrome, unspecified
Also known as:
- Blood and Bone Marrow Disorder
- Secondary Polycythemia
- Blood Disorder
- Bone Marrow Disease
- Hematologic Conditions
- Diseases of Blood-Forming Organs
- High red blood cell count (secondary)
- Excess red blood cells (secondary)
- Acquired polycythemia
ICD-10 Codes:
- D7589: Other specified diseases of blood and blood-forming organs
- D751: Secondary polycythemia
Also known as:
- Systemic Mastocytosis
- Systemic mastocytosis
- Generalized mastocytosis
- Systemic mast cell disease
- Aggressive mastocytosis
ICD-10 Codes:
- D4702: Systemic mastocytosis
Also known as:
- Myelofibrosis
- Bone Marrow Disease
- Bone Marrow Scarring
- Primary Myelofibrosis
ICD-10 Codes:
- D7581: Myelofibrosis
Also known as:
- Other Types of Pancytopenia
- Blood Disorder
- Rare pancytopenia
- Uncommon low blood counts
- Bone marrow failure
ICD-10 Codes:
- D61818: Other pancytopenia
Which procedures does Dr. Mascarenhas perform as a Hematology / Oncology Specialist?
As a Hematology / Oncology Specialist, procedures performed by a Dr. John Mascarenhas may include:
- 3D Conformal Radiotherapy
- Adaptive Radiation Therapy (ART)
- Adrenalectomy
- Blood Thinning Therapy / Anticoagulation
- Blood Transfusion Consultation
- Blood Transfusion Follow Up
- Bone Excision
- Bone Grafting
For detailed information, please contact Dr. Mascarenhas' office.
Does Dr. Mascarenhas accept my insurance?
Dr. Mascarenhas accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Mascarenhas accept in New York, NY?
Dr. Mascarenhas in New York, NY accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Centene
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
EmblemHealth
Healthfirst
Medicare
MetroPlus
Molina
State of New York
UnitedHealthcare
View All Insurances
Where is Dr. Mascarenhas' office located?
What is Dr. Mascarenhas's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Mascarenhas's National Provider Identifier (NPI) number is 1376719104.
What common questions do patients ask about Dr. Mascarenhas?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Mascarenhas
What is Dr. John Mascarenhas's specialty?
Dr. Mascarenhas is a Hematology / Oncology Specialist near New York, NY. An internist doctor of osteopathy specializing in the combined treatment of hematology and oncology disorders. A doctor of osteopathy who is board eligible or certified by the American Osteopathic Board of Internal Medicine was previously able to obtain a Certificate of Special Qualifications in Hematology and Oncology; however, this certificate is no longer available. Contact Dr. Mascarenhas to book an appointment today.
Is this Dr. John Mascarenhas affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Mascarenhas is affiliated with The Mount Sinai Hospital which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Hematology / Oncology Specialist?
Explore Hematology / Oncology Specialist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is John Mascarenhas accepting new patients in New York, NY?
Yes, Dr. John Mascarenhas is accepting new patients at this time.
Does Dr. John Mascarenhas offer online booking?
Please contact Dr. Mascarenhas's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with John Mascarenhas?
Please contact Dr. Mascarenhas's office for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. John Mascarenhas have?
Dr. John Mascarenhas is certified by the American Board of Internal Medicine.
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Connect with DR. Mascarenhas
10 E 102nd St
New York, NY 10029