
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Allan, Hematology / Oncology Specialist in New York, NY?
Dr. Allan is an Associate Professor of Clinical Medicine in the Division of Hematology and Medical Oncology at Weill Cornell Medicine. Dr. Allan completed his undergraduate education at the University of Missouri-Columbia and graduated with a B.S. in both Biochemistry and Finance. He subsequently obtained his medical degree from Saint Louis University. Seeking an internal medicine residency program with particular strength in oncology, Dr. Allan moved to New York in 2009 to train at NewYork-Presbyterian Hospital, Weill Cornell Medical Campus, where he also completed his hematology and medical oncology fellowship.Upon completion of training Dr. Allan joined the lymphoma faculty in the Division of Hematology and Oncology and is a member of the CLL Research Center. ?Dr. Allan treats all lymphoid malignancies and has a particular interest in improving therapies for patients with CLL and Richter?s Syndrome, which is the focus of his research.?
Where did Dr. Allan go to medical school and complete their residency?
Medical School: Saint Louis University School of Medicine
What languages does Dr. Allan speak?
Dr. Allan and their clinical team can communicate with patients in the following languages:
English
What conditions does a Hematology / Oncology Specialist like Dr. Allan typically treat?
As a Hematology / Oncology Specialist, Dr. Allan 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. Allan. 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:
- Chronic Lymphocytic Leukemia
- Chronic Lymphocytic Leukemia Treatment (PDQ®)
- CLL
- B-cell chronic lymphocytic leukemia
- Lymphocytic leukemia
ICD-10 Codes:
- C9110: Chronic lymphocytic leukemia of B-cell type not having achieved remission
Also known as:
- Diffuse Large B-cell Lymphoma
- Non-Hodgkin Lymphoma
- Follicular Lymphoma
- Lymphoma
- DLBCL
- Aggressive B-cell Lymphoma
- Diffuse B-cell Lymphoma
- Lymphatic Cancer
- Lymphosarcoma
- NHL
- Follicular Non-Hodgkin Lymphoma
- FL
- Nodular Lymphoma
ICD-10 Codes:
- C8330: Diffuse large B-cell lymphoma, unspecified site
- C8580: Other specified types of non-Hodgkin lymphoma, unspecified site
- C8590: Non-Hodgkin lymphoma, unspecified, unspecified site
- C8290: Follicular lymphoma, unspecified, unspecified site
What procedures does a Hematology / Oncology Specialist like Dr. Allan typically perform?
As a Hematology / Oncology Specialist, Dr. Allan 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. Allan. 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:
- Bone Marrow Biopsy and Aspiration
- Biopsy
- Bone Marrow Tests
- Bone Marrow Exam
- Bone Marrow Sample Collection
- Diagnostic Bone Marrow Procedure
CPT Codes:
- 38222: Diagnostic bone marrow; biopsy(ies) and aspiration(s)
Does Dr. Allan accept my insurance?
Dr. Allan 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. Allan accept in New York, NY?
Dr. Allan in New York, NY accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Cigna Group
CVS Health (formerly Aetna)
Elderplan
EmblemHealth
Healthfirst New York
Humana
Medicare
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Allan's office located?

Lymphoma
520 East 70th Street
Starr Pavilion, 3rd Floor
New York, NY 10021
What is Dr. Allan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Allan's National Provider Identifier (NPI) number is 1144462441.
What common questions do patients ask about Dr. Allan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Allan
What is Dr. John Allan's specialty?
Dr. Allan is a Hematology / Oncology Specialist near New York, NY.
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. John Allan affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Allan is affiliated with Newyork-Presbyterian Hospital/weill Cornell Medical Center 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
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 John Allan accepting new patients in New York, NY?
Yes, Dr. John Allan is accepting new patients at this time.
Does Dr. John Allan offer online booking?
Please contact Dr. Allan's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with John Allan?
Please contact Dr. Allan's office for information regarding telehealth appointment availability or for scheduling assistance.
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