18 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Diefenbach, Hematology / Oncology Specialist in New York, NY?
Dr. Catherine Diefenbach, MD is a Hematology / Oncology Specialist, who primarily practices in New York, NY with 1 additional practice location. She has been practicing for over 18 years and is board certified by the American Board of Internal Medicine. Dr. Diefenbach is fluent in English and German, and is currently seeing new patients. Dr. Diefenbach’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Diefenbach’s office at (212) 731-5577.
Where did Dr. Diefenbach go to medical school and complete their residency?
Fellowship: Memorial Sloan-Kettering Cancer Center
Medical School: University of Pennsylvania
Is Dr. Diefenbach board certified in Hematology / Oncology Specialist?
Yes, Dr. Catherine Diefenbach, MD is board certified by the American Board of Internal Medicine since 2010, American Board of Internal Medicine since 2008
What languages does Dr. Diefenbach speak?
Dr. Diefenbach and their clinical team can communicate with patients in the following languages:
English
German
What conditions does Dr. Diefenbach treat?
As a Hematology / Oncology Specialist, Dr. Diefenbach 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. Diefenbach. 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:
- Diffuse Large B-cell Lymphoma
- Non-Hodgkin Lymphoma
- Mantle Cell Lymphoma
- MALT Lymphoma
- Follicular Lymphoma
- Lymphoma
- DLBCL
- Aggressive B-cell Lymphoma
- Diffuse B-cell Lymphoma
- Lymphatic Cancer
- Lymphosarcoma
- NHL
- MCL
- Mantle Cell Lymphoma Cancer
- Mucosa-associated lymphoid tissue lymphoma
- Extranodal marginal zone lymphoma
- B-cell lymphoma
- Large B-cell Lymphoma
- Lymphoma in Organs
- Follicular Lymphatic Cancer
- Indolent Lymphoma
ICD-10 Codes:
- C8338: Diffuse large B-cell lymphoma, lymph nodes of multiple sites
- C8580: Other specified types of non-Hodgkin lymphoma, unspecified site
- C8330: Diffuse large B-cell lymphoma, unspecified site
- C8339: Diffuse large B-cell lymphoma, extranodal and solid organ sites
- C8318: Mantle cell lymphoma, lymph nodes of multiple sites
- C884: Extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue [MALT-lymphoma]
- C8331: Diffuse large B-cell lymphoma, lymph nodes of head, face, and neck
- C8310: Mantle cell lymphoma, unspecified site
- C8589: Other specified types of non-Hodgkin lymphoma, extranodal and solid organ sites
- C8218: Follicular lymphoma grade II, lymph nodes of multiple sites
- C8333: Diffuse large B-cell lymphoma, intra-abdominal lymph nodes
Also known as:
- Cancer Chemotherapy
- Cancer Immunotherapy
- Chemo treatment
- Oncology chemotherapy
- Cancer drug therapy
- Oncology immunotherapy
- Immune therapy for cancer
ICD-10 Codes:
- Z5111: Encounter for antineoplastic chemotherapy
- Z5112: Encounter for antineoplastic immunotherapy
Also known as:
- Nodular Sclerosis Hodgkin Lymphoma (Multiple Lymph Nodes)
- Nodular Lymphocyte Predominant Hodgkin Lymphoma in Multiple Lymph Node Sites
- Hodgkin Lymphoma
- NSHL widespread', 'Nodular sclerosing Hodgkin's disease in many lymph nodes
- Widespread NLPHL', 'Hodgkin's Lymphoma in Multiple Lymph Nodes
- Multisite NLPHL
- Hodgkin's Disease', 'Hodgkin's Lymphoma
- Hodgkin's Disease
- Lymphatic Cancer
- Reed-Sternberg Lymphoma
ICD-10 Codes:
- C8118: Nodular sclerosis Hodgkin lymphoma, lymph nodes of multiple sites
- C8108: Nodular lymphocyte predominant Hodgkin lymphoma, lymph nodes of multiple sites
- C8190: Hodgkin lymphoma, unspecified, unspecified site
- C8170: Other Hodgkin lymphoma, unspecified site
Also known as:
- Chronic Lymphocytic Leukemia
- Adult T-cell Lymphoma/Leukemia
- Chronic Lymphocytic Leukemia Treatment (PDQ®)
- Leukemia
- Lymphoma
- CLL
- B-cell chronic lymphocytic leukemia
- Lymphocytic leukemia
- ATLL
- T-cell lymphoma
- T-cell leukemia
ICD-10 Codes:
- C9110: Chronic lymphocytic leukemia of B-cell type not having achieved remission
- C9150: Adult T-cell lymphoma/leukemia (HTLV-1-associated) not having achieved remission
Also known as:
- Widespread Swollen Lymph Nodes
- Generalized lymphadenopathy
- Multiple swollen glands
- Body-wide enlarged lymph nodes
ICD-10 Codes:
- R591: Generalized enlarged lymph nodes
Which procedures does Dr. Diefenbach perform as a Hematology / Oncology Specialist?
As a Hematology / Oncology Specialist, procedures performed by a Dr. Catherine Diefenbach 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. Diefenbach's office.
Does Dr. Diefenbach accept my insurance?
Dr. Diefenbach accepts most major insurance plans. Important: Please call our office at (212) 731-5577 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Diefenbach accept in New York, NY?
Dr. Diefenbach 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
CVS Health (formerly Aetna)
Elderplan
Express Scripts
Healthfirst
Medicaid
Medicare
National Benefit Fund
Service Employees International Union (SEIU)
UnitedHealthcare
View All Insurances
Where is Dr. Diefenbach's office located?
Dr. Catherine Diefenbach's Primary Practice
240 E 38th St
New York, NY 10016
(212) 731-5577
What is Dr. Diefenbach's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Diefenbach's National Provider Identifier (NPI) number is 1982864039.
What common questions do patients ask about Dr. Diefenbach?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Diefenbach
What is Dr. Catherine Diefenbach's specialty?
Dr. Diefenbach 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. Diefenbach to book an appointment today.
Is this Dr. Catherine Diefenbach affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Diefenbach is affiliated with Nyu Langone Health - Tisch 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 Catherine Diefenbach accepting new patients in New York, NY?
Yes, Dr. Catherine Diefenbach is accepting new patients at this time.
Does Dr. Catherine Diefenbach offer online booking?
Please contact Dr. Diefenbach's office at (212) 731-5577 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Catherine Diefenbach?
Please contact Dr. Diefenbach's office at (212) 731-5577 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Catherine Diefenbach have?
Dr. Catherine Diefenbach is certified by the American Board of Internal Medicine.
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