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Dr. John Leonard, MD

Hematology*
Dr. John Leonard, MD
5.0 (107 Ratings)

Offers telehealth

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Dr. John Leonard, MD is a Hematologist in New York, NY.
Dr. John Leonard, MD
5.0 (107 Ratings)
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Dr. John Leonard, MD

Hematology*
New York, NY
Accepting new patients
34 years of experience

Offers telehealth

Dr. John Leonard, MD is a Hematologist in New York, NY.
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About

Dr. John Leonard, MD is a Hematologist in New York, NY and has 34 years experience. They graduated from University of Virginia School of Medicine in 1990 and completed a residency at Newyork-Presbyterian Hospital-Weill Cornell Medical Center.They currently practice at Lymphoma and are affiliated with Weill Cornell Medical Center. Dr. Leonard has experience treating conditions like Non-Hodgkin's Lymphoma, Diffuse Large B-Cell Lymphoma and Chronic Lymphocytic Leukemia among other conditions at varying frequencies. At present, Dr. Leonard received an average rating of 5.0/5 from patients and has been reviewed 107 times. Their office accepts new patients and telehealth appointments. Dr. Leonard also speaks Hungarian. Dr. Leonard is board certified in Hematology and accepts multiple insurance plans.

Offers Telehealth

This provider offers telehealth appointments. Call the office to schedule.

Explains Conditions Well

Patients said this doctor explains conditions well.

Trustworthy

Patients said this doctor is trustworthy.

Friendly Staff

Patients said the staff was friendly.

Easy Scheduling

Patients said scheduling was easy.

Locations

  1. 1 Lymphoma
    520 E 70th St # 3, New York, NY 10021
  2. 2 Chronic Lymphocytic Leukemia (CLL)
    520 E 70th St # 3, New York, NY 10021

Experience and Background Check

Non-Hodgkin's Lymphoma
Diffuse Large B-Cell Lymphoma
Chronic Lymphocytic Leukemia
Diffuse Large B-Cell Lymphoma
Chronic Lymphocytic Leukemia
Non-Hodgkin's Lymphoma
Diffuse Large B-Cell Lymphoma
Chronic Lymphocytic Leukemia
Hodgkin's Disease
Acquired Hemolytic Anemia
Follicular Lymphoma Grade 1
Hypogammaglobulinemia
Leukocytosis
Lymphocytosis
Marginal Zone Lymphoma
Nodular Sclerosis Hodgkins Lymphoma
Primary Central Nervous System Lymphoma
Acute Leukemia
Acute Lymphocytic Leukemia
Acute Lymphoid Leukemia
Acute Myeloid Leukemia
Adult T-Cell Lymphoma
All Lymphoma
Anaplastic Large Cell Lymphoma
Anaplastic Large Cell Lymphoma, ALK Negative
Blood Disorders
Breast Carcinoma
Burkitt's Lymphoma
Cancer of Cerebral Meninges
Central Nervous System Lymphoma
Chronic Myeloid Leukemia (CML)
Cutaneous Follicle Center Lymphoma
Cutaneous T-Cell Lymphoma
Diffuse Follicle Center Lymphoma
Ductal Carcinoma in Situ
Endocrine Gland Cancer
Follicular Lymphoma Grade 2
Follicular Lymphoma Grade 3
Follicular Lymphoma Grade 3A
Follicular Lymphoma Grade 3B
Hematologic Problems
Hemochromatosis
Hemophilia
Immune Thrombocytopenia
Leukemia
  • View other providers who treat Leukemia
Lymphocytic-Rich Hodgkins Lymphoma
Lymphoma, Large-Cell
Lymphosarcoma
Male Breast Carcinoma
Malignant Mediastinal Tumor
Malignant Pleura Secondary
Mature T and NK-Cell Cancer
Mediastinal B-Cell Lymphoma
Merkel Cell Carcinoma
Metastatic Respiratory System Cancer
Multiple Myeloma
Myeloma
  • View other providers who treat Myeloma
Neuroendocrine Tumors
Nodular Lymphocyte-Predominant Hodgkin Lymphoma
Oral Cancer
Osteosarcoma
Pancreatic Cancer
Peripheral T-Cell Lymphoma
Plasma Cell Leukemia
Pleura Cancer
Pleural Cancer
Retroperitoneum Cancer
Soft Tissue Sarcoma
Stomach Cancer
Testicular Cancer
Thrombocytosis
Upper Digestive Tract Cancer
Urinary Tract Cancer
Uterine Cancer
Vitamin B Deficiency
von Willebrand Disease
Advanced Chemotherapy
Anemia and Iron Deficiency Screening
Biopsy
  • View other providers who treat Biopsy
Blood Product Transfusion
Bone Marrow Biopsy
Bone Marrow Evaluation
Diagnostic Evaluation
Erythropoietin Test
Genetic Testing
Hematologic Disorder Treatment
Immunotherapy
Leukemia Diagnostic Evaluations
Lymphoma Evaluation
Medication Management
Plasmapheresis
Radiation Oncology Procedures
Targeted Therapy for Hematologic Cancer

Patient Satisfaction

Likelihood to recommend Dr. Leonard
5.0
Based on 107 Reviews
5 Stars (107)
4 Stars (0)
3 Stars (0)
2 Stars (0)
1 Star (0)

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Patient Reviews
Oct 27, 2024
Dr. Leonard is quick but he listens and if there is an issue he takes the time to address it. He is pleasantly matter of fact. Only downside is that he tends to run late.
— Oct 27, 2024
See more reviews on Healthgrades
Photo: Dr. John Leonard, MD
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Dr. Leonard's Office & Staff

  • Ease of scheduling urgent appointments
  • Office environment, cleanliness, comfort, etc.
  • Staff friendliness and courteousness
  • Total wait time (waiting & exam rooms)

Experience with Dr. Leonard

  • Level of trust in provider's decisions
  • How well provider explains medical condition(s)
  • How well provider listens and answers questions
  • Hpends appropriate amount of time with patients

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Insurance Accepted

* Please verify this information when scheduling an appointment.
  • Aetna PPO
    Medicare Non-HMO
    Select
  • Personal Choice PPO
  • Blue Access (Select Network)-NY
    Blue Priority (Select Network)-NY
    Empire (Select Network)-NY POS
    National (BlueCard Basic) PPO
    National (BlueCard) PPO
  • Blue Card PPO
  • Medicare
  • HealthyBlue 2.0
    HealthyBlue Advantage
  • Cigna EPO
    Cigna POS
  • Emblem Health
    GHI
    Health Insurance Plan of Greater New York (HIP)
  • Medicaid
  • Community Plan
    Compass
    Empire Plan
    United Healthcare
    United Healthcare EPO
    United Healthcare POS

About Me

Biography
  • Dr. John Leonard, MD is a hematologist in New York, NY and has over 33 years of experience in the medical field. He graduated from University of Virginia School of Medicine in 1990. He specializes in Hematology and Medical Oncology.
Biography
Languages Spoken
Hungarian
Languages Spoken
Specialties*
Hematology
Medical Oncology
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Education

Medical Education

Medical Education
  • University of Virginia School of Medicine
    1990
Medical Education

Board Certifications

Board Certifications
  • Hematology and Medical Oncology
Board Certifications
What’s a board certification and why is it important that my provider has one?

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.

Internship

Internship
  • New York Hospital Cornell Medical Center
    1991
Internship

Residency

Residency Hospital
  • Newyork-Presbyterian Hospital-Weill Cornell Medical Center
    1993
Residency Hospital

Fellowship

Fellowship Hospital
  • Newyork-Presbyterian Hospital-Weill Cornell Medical Center
    1995
Fellowship Hospital
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Leonard communicate via email?
10 users said yes.
Yes
(10)
No
(0)
Does Dr. Leonard offer telehealth services or virtual visits?
7 users said yes.
Yes
(7)
No
(1)
Does Dr. Leonard offer an online patient portal?
7 users said yes.
Yes
(7)
No
(0)
Does Dr. Leonard have free onsite parking?
1 user said yes.
Yes
(1)
No
(10)
Does Dr. Leonard offer weekend visits?
No users said yes.
Yes
(0)
No
(7)
Does Dr. Leonard offer evening visits?
No users said yes.
Yes
(0)
No
(7)
Does Dr. Leonard specialize in working with children or adolescents?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Leonard specialize in working with seniors?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Leonard specialize in couples therapy?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Leonard specialize in working with LGBTQ+ community?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Leonard accept insurance?
No responses yet.
Yes
(0)
No
(0)

Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. John Leonard, MD. To arrange an appointment, call the number on Dr. Leonard's profile.

Dr. Leonard frequently treats the following conditions: Non-Hodgkin's Lymphoma, Diffuse Large B-Cell Lymphoma and Chronic Lymphocytic Leukemia. See more on Sharecare.

Dr. John Leonard, MD is affiliated with Weill Cornell Medical Center.

Yes, Dr. John Leonard, MD holds board certification in Hematology and Medical Oncology.

Dr. Leonard has over 34 years of healthcare experience.

Hospital Affiliations

  • Weill Cornell Medical Center

    525 E 68th St, New York, NY

Dr. John Leonard, MD

Dr. John Leonard, MD

(107)

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