SR
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Rambally, Hematology / Oncology Specialist in Dallas, TX?
Dr. Siayareh Rambally, MD is a Hematology / Oncology Specialist, who primarily practices in Dallas, TX with 2 additional practice locations. She is board certified. Dr. Rambally is fluent in English, and is currently seeing new patients. Dr. Rambally’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Rambally’s office at (214) 645-4673.
Is Dr. Rambally board certified as a Hematology / Oncology Specialist?
Yes, Dr. Siayareh Rambally, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Rambally speak?
Dr. Rambally and their clinical team can communicate with patients in the following languages:
English
What conditions does a Hematology / Oncology Specialist like Dr. Rambally typically treat?
As a Hematology / Oncology Specialist, Dr. Rambally 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. Rambally. 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. Learn more about our claims-based healthcare methodology.
Also known as:
- Sickle Cell Disease (Stable)
- Sickle Cell Disease with Crisis
- Sickle Cell Disease
- Sickle cell anemia without crisis
- Chronic sickle cell disease
- Stable sickle cell
- Sickle Cell Anemia Crisis
- Sickle Cell Pain Crisis
- Vaso-Occlusive Crisis
ICD-10 Codes:
- D571: Sickle-cell disease without crisis
- D5700: Hb-SS disease with crisis, unspecified
Also known as:
- Beta Thalassemia
- Thalassemia
- Beta thalassemia
- Beta-thalassemia major
- Cooley's anemia
- Thalassemia intermedia
ICD-10 Codes:
- D561: Beta thalassemia
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
- Platelet Disorder
- Essential thrombocythemia
- Chronic Myeloproliferative Neoplasms Treatment (PDQ)
- ET
- Primary Thrombocythemia
- Hemorrhagic Thrombocythemia
ICD-10 Codes:
- D473: Essential (hemorrhagic) thrombocythemia
What procedures does a Hematology / Oncology Specialist like Dr. Rambally typically perform?
As a Hematology / Oncology Specialist, Dr. Rambally performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Rambally. 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. Learn more about our claims-based healthcare methodology.
Also known as:
- Blood Transfusion
- Blood Transfusion and Donation
- Blood product transfusion
- Red blood cell transfusion
- Plasma transfusion
CPT Codes:
- 36430: Transfusion, blood or blood components
Does Dr. Rambally accept my insurance?
Dr. Rambally accepts most major insurance plans. Important: Please call our office at (214) 645-4673 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Rambally accept in Dallas, TX?
Dr. Rambally in Dallas, TX accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Centene Corporation
Cigna Group
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Health Care Service Corporation
Medicare
Molina Healthcare
Parkland Health & Hospital System
State of Texas
UnitedHealth Group
View All Insurances
Where is Dr. Rambally's office located?
What is Dr. Rambally's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Rambally's National Provider Identifier (NPI) number is 1811142581.
What common questions do patients ask about Dr. Rambally?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Rambally
What is Dr. Siayareh Rambally's specialty?
Dr. Rambally is a Hematology / Oncology Specialist near Dallas, TX.
What does a Hematology / Oncology Specialist do?
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.
Is this Dr. Siayareh Rambally affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Rambally is affiliated with William P. Clements Jr. University Hospital, Methodist Dallas Medical Center, White Rock Medical Center which are a Castle Connolly Top Hospitals. 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
When to see a Hematology / Oncology Specialist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Hematology / Oncology Specialist. Explore 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 Siayareh Rambally accepting new patients in Dallas, TX?
Yes, Dr. Siayareh Rambally is accepting new patients at this time.
Does Dr. Siayareh Rambally offer online booking?
Please contact Dr. Rambally's office at (214) 645-4673 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Siayareh Rambally?
Please contact Dr. Rambally's office at (214) 645-4673 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Siayareh Rambally have?
Dr. Siayareh Rambally is certified by the American Board of Internal Medicine.
Other Hematology / Oncology Specialist Near Dallas, TX
NL
Hematology / Oncology Specialist
Dr. Nicholas Levonyak is a Hematology / Oncology Specialist, who primarily practices in Dallas, TX with 1 additional practice location.
Dallas, TX
SW
Surgical Oncologist
Dr. Sam Wang, MD is a Surgical Oncologist, who primarily practices in Dallas, TX with 2 additional practice locations. He has been practicing for over 15 years.
Dallas, TX

Surgical Oncologist
Dr. Herbert Zeh, MD is a Surgical Oncologist, who primarily practices in Dallas, TX with 2 additional practice locations. He is board certified.
Dallas, TX