Dr. John Leonard, MD is accepting new patients on Healthline FindCare. You can check to see if Dr. Leonard is offering online scheduling or call the provider’s office for more information.
- FindCare
- Hematologists
- NY
- New York
- Dr. John Leonard, MD
Dr. John Leonard, MD
Overview of Dr. John Leonard, MD
Dr. John Leonard, MD is a Hematology Specialist in New York, NY. They specialize in Hematology, has 34 years of experience, and is board certified in Hematology. They graduated from University of Virginia School of Medicine and is affiliated with Weill Cornell Medical Center. Patients rated Dr. Leonard an average 5.0 star rating.
Dr. Leonard works at
Dr. Leonard's Office Locations
-
1
Lymphoma520 E 70th St # 3, New York, NY 10021 Directions (212) 582-3422
-
2
Chronic Lymphocytic Leukemia (CLL)520 E 70th St # 3, New York, NY 10021 Directions (212) 582-3422
Experience & Treatment Frequency
NEW FEATURE
What is treatment frequency?
Our treatment frequency feature helps you understand howoften a provider performs or treats a specificprocedure/condition compared to other doctors. Providersrank in one of four frequency categories:
Very HighFrequency HighFrequency NormalFrequency May Perform Specific procedures/conditions that don’t haveenough data are indicated with “May Perform”. We encourageyou to contact the provider with questions about theirexperience.
NEW FEATURE
What is treatment frequency?
Our treatment frequency feature helps you understand howoften a provider performs or treats a specificprocedure/condition compared to other doctors. Providersrank in one of four frequency categories:
Specific procedures/conditions that don’t haveenough data are indicated with “May Perform”. We encourageyou to contact the provider with questions about theirexperience.
Treatment frequency
Many providers have expertise treating multiple conditions or procedures. FindCare uses a variety of data sources to determine which conditions or procedures a provider treats and their level of experience.
- View other providers who treat Non-Hodgkin's Lymphoma
- View other providers who treat Mantle Cell Lymphoma
- View other providers who treat Diffuse Large B-Cell Lymphoma
- View other providers who treat Hodgkin's Disease
- View other providers who treat Acquired Hemolytic Anemia
- View other providers who treat Anemia
- View other providers who treat Bleeding Disorders
- View other providers who treat Chronic Lymphocytic Leukemia
- View other providers who treat Coagulation Disorders
- View other providers who treat Deep Vein Thrombosis (DVT)
- View other providers who treat Follicular Lymphoma Grade 1
- View other providers who treat Hypogammaglobulinemia
- View other providers who treat Leukocytosis
- View other providers who treat Macroglobulinemia (incl. Waldenstrom's )
- View other providers who treat Marginal Zone Lymphoma
- View other providers who treat Neutropenia
- View other providers who treat Primary Central Nervous System Lymphoma
- View other providers who treat Venous Embolism and Thrombosis
- View other providers who treat Acute Leukemia
- View other providers who treat Acute Lymphoid Leukemia
- View other providers who treat Acute Myeloid Leukemia
- View other providers who treat Adult T-Cell Lymphoma
- View other providers who treat All Lymphoma
- View other providers who treat Anaplastic Large Cell Lymphoma
- View other providers who treat Anaplastic Large Cell Lymphoma, ALK Negative
- View other providers who treat Bladder Cancer
- View other providers who treat Blood Disorders
- View other providers who treat Bone Cancer
- View other providers who treat Breast Cancer
- View other providers who treat Breast Carcinoma
- View other providers who treat Breast Lump
- View other providers who treat Burkitt's Lymphoma
- View other providers who treat Cancer of Cerebral Meninges
- View other providers who treat Central Nervous System Lymphoma
- View other providers who treat Chronic Myeloid Leukemia (CML)
- View other providers who treat Cutaneous Follicle Center Lymphoma
- View other providers who treat Cutaneous T-Cell Lymphoma
- View other providers who treat Diffuse Follicle Center Lymphoma
- View other providers who treat Ductal Carcinoma in Situ
- View other providers who treat Follicular Lymphoma Grade 2
- View other providers who treat Follicular Lymphoma Grade 3
- View other providers who treat Follicular Lymphoma Grade 3A
- View other providers who treat Follicular Lymphoma Grade 3B
- View other providers who treat Hematologic Problems
- View other providers who treat Hemochromatosis
- View other providers who treat Hemophilia
- View other providers who treat Kidney Cancer
- View other providers who treat Leukemia
- View other providers who treat Lung Cancer
- View other providers who treat Lymphocytosis
- View other providers who treat Lymphoma
- View other providers who treat Lymphosarcoma
- View other providers who treat Male Breast Carcinoma
- View other providers who treat Malignant Mediastinal Tumor
- View other providers who treat Malignant Pleura Secondary
- View other providers who treat Mediastinal B-Cell Lymphoma
- View other providers who treat Mediastinal Tumors
- View other providers who treat Metastatic Respiratory System Cancer
- View other providers who treat Myeloma
- View other providers who treat Nodular Lymphocyte-Predominant Hodgkin Lymphoma
- View other providers who treat Nodular Lymphoma
- View other providers who treat Nodular Sclerosis Hodgkins Lymphoma
- View other providers who treat Oral Cancer
- View other providers who treat Osteosarcoma
- View other providers who treat Pancreatic Cancer
- View other providers who treat Pancytopenia
- View other providers who treat Peripheral T-Cell Lymphoma
- View other providers who treat Pleura Cancer
- View other providers who treat Pleural Cancer
- View other providers who treat Prostate Cancer
- View other providers who treat Retroperitoneum Cancer
- View other providers who treat Sezary's Disease
- View other providers who treat Stomach and Small Intestine Cancer
- View other providers who treat Stomach Cancer
- View other providers who treat Thrombocytosis
- View other providers who treat Thyroid Cancer
- View other providers who treat Upper Digestive Tract Cancer
- View other providers who treat Urinary Tract Cancer
- View other providers who treat Uterine Cancer
- View other providers who treat Vitamin B Deficiency
- View other providers who treat von Willebrand Disease
- View other providers who treat Advanced Chemotherapy
- View other providers who treat Anemia and Iron Deficiency Screening
- View other providers who treat Biopsy
- View other providers who treat Blood Product Transfusion
- View other providers who treat Bone Marrow Biopsy
- View other providers who treat Bone Marrow Evaluation
- View other providers who treat Diagnostic Evaluation
- View other providers who treat Erythropoietin Test
- View other providers who treat Genetic Testing
- View other providers who treat Hematologic Disorder Treatment
- View other providers who treat Immunotherapy
- View other providers who treat Leukemia Diagnostic Evaluations
- View other providers who treat Lymphoma Evaluation
- View other providers who treat Medication Management
- View other providers who treat Plasmapheresis
- View other providers who treat Radiation Oncology Procedures
- View other providers who treat Targeted Therapy for Hematologic Cancer
Insurance Accepted
- Aetna
- Affinity Health Plan
- Amerihealth
- Amida Care
- Anthem
- Blue Cross Blue Shield
- Buckeye Community Health Plan
- CareFirst Blue Cross Blue Shield
- Cigna
- CoreSource
- EmblemHealth
- Empire Blue Cross Blue Shield
- Fidelis Care
- Healthfirst
- Midwest Health Plan
- Oxford Health Plans
- POMCO Group
- UnitedHealthCare
- VNS Choice
- WellCare
* Please verify this information when scheduling an appointment.
Ratings & Reviews
How was your appointment with Dr. Leonard?
About Dr. John Leonard, MD
- Hematology
-
*Healthline does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
- 34 years of experience
- English, Hungarian
- Male
- 1992892079
Education & Certifications
- Newyork-Presbyterian Hospital-Weill Cornell Medical Center
- Newyork-Presbyterian Hospital-Weill Cornell Medical Center
- University of Virginia School of Medicine
- Hematology and Medical Oncology
A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.
Hospital Affiliations
- Weill Cornell Medical Center
Frequently Asked Questions
Dr. Leonard accepts Aetna, Anthem and Blue Cross Blue Shield, and other major insurance plans. Please call ahead to confirm all accepted insurance plans.
Dr. Leonard has indicated that they do offer telehealth services. Please call the provider’s office at for more information.
Dr. Leonard works at
Dr. Leonard has seen patients for Non-Hodgkin's Lymphoma, Mantle Cell Lymphoma and Diffuse Large B-Cell Lymphoma, and more. You can see other conditions treated by Dr. Leonard on their profile. Please call the provider’s office to confirm all visit reasons.
Dr. Leonard speaks Hungarian.
103 patients have reviewed Dr. Leonard. The overall rating for this provider is 5.0. You can read verified reviews and ratings and leave your own review based on your experience with Dr. Leonard.
Whether a person prefers to schedule an appointment online or over the phone with Dr. Leonard, there are benefits to both methods. A person calling to schedule an with Dr. Leonard appointment can ask questions about the practice, provider availability, conditions treated, procedures performed, and if their insurance carrier is accepted. While online scheduling is quicker, easier, allows one to view a wide range of appointment times, and may provide the ability to sync with a personal calendar.