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Dr. John Leonard, MD

Dr. John Leonard, MD

Hematology*
30+ years of experience

Dr. John Leonard, MD is a hematologist in New York, NY and has over 30 years of experience in the medical field. Dr. Leonard has extensive experience in Lymphatic System Disorders. He graduated from University of Virginia School of Medicine in 1990. He is affiliated with Weill Cornell Medical Center. He is accepting new patients and telehealth appointments.

5 Star Rating
Based on 118 reviews 5 Star Rating (118 reviews)

Locations

Practice

Lymphoma520 E 70th St # 3 New York, NY 10021
1
New Patient?
(212) 235-1519

At a Glance

  • Areas of ExpertiseDr. Leonard specializes in the areas of Hematology & Medical Oncology. See board certifications
  • Explains Conditions WellPatients said this doctor explains conditions well. See reviews
  • Offers TelehealthThis doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Recent ReviewsReviews made in the last 30 days. See reviews

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Dr. Leonard's Reviews

Likelihood to recommend Dr. Leonard

5.0

118 ratings, 94 with a written review
5 Star
100%
100%
4 Star
0%
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3 Star
0%
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2 Star
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1 Star
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RecentHighestLowestMost Helpful
What went well
No results
What could be improved
No results
Helpful
Apr 19, 2025
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What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Sholeh Brahimy – Apr 07, 2025
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What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Lynne Wilkinson – Mar 27, 2025
×Post a ResponseAre you Dr. John Leonard, MD?
What went well
  • I felt respected
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Dr. Bob Cook (veterinarian) – Mar 13, 2025
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What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Mary O’Brien – Mar 13, 2025
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What went well
No results
What could be improved
No results
Helpful
Feb 21, 2025
×Post a ResponseAre you Dr. John Leonard, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Lillian Templeton – Jan 24, 2025
×Post a ResponseAre you Dr. John Leonard, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Jan 24, 2025
×Post a ResponseAre you Dr. John Leonard, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Jan 24, 2025
×Post a ResponseAre you Dr. John Leonard, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
KAREN M FEELEY – Nov 10, 2024
×Post a ResponseAre you Dr. John Leonard, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Nov 01, 2024
×Post a ResponseAre you Dr. John Leonard, MD?
What went well
  • I felt respected
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
What could be improved
No results
Helpful
Oct 31, 2024
×Post a ResponseAre you Dr. John Leonard, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Trusted the provider's decisions
What could be improved
  • Long wait times
Helpful
Oct 27, 2024
×Post a ResponseAre you Dr. John Leonard, MD?
What went well
No results
What could be improved
No results
Helpful
Bennett Epstein – Oct 11, 2024
×Post a ResponseAre you Dr. John Leonard, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Staff friendliness
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Aug 16, 2024
×Post a ResponseAre you Dr. John Leonard, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Cindy Diamond – Aug 11, 2024
×Post a ResponseAre you Dr. John Leonard, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Aug 08, 2024
×Post a ResponseAre you Dr. John Leonard, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Sergio T. – Mar 24, 2024
×Post a ResponseAre you Dr. John Leonard, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Mar 17, 2024
×Post a ResponseAre you Dr. John Leonard, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
2 people found this helpful
Helpful
Mark S. – Mar 08, 2024
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About Me

Watch Dr. Leonard's Video

care philosophy

Everything that we do at our center, whether clinical care, research or education, is focused on helping patients.

Here are some of the many reasons why patients tell us they come here - whether from the New York area, the surrounding...
read more

biography

POSITION:The Richard T. Silver Distinguished Professor of Hematology and Medical OncologyProfessor of MedicineSenior Associate Dean for Innovation and Initiatives, Weill Cornell MedicineAttending Physician, New York Presbyterian HospitalEDUCATION:M.D....read more
  • Hematology

  • Medical Oncology

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Newyork-presbyterian Hospital-weill Cornell Medical Center

    Fellowship Hospital, 1995
  • Newyork-presbyterian Hospital-weill Cornell Medical Center

    Internship Hospital, 1991
  • University Of Virginia School Of Medicine

    Medical School, 1990
American Board of Medical Specialties®
American Board of Internal Medicine®
Hematology
Medical Oncology
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.
  • English

  • Hungarian

Affiliated Hospitals

  • Weill Cornell Medical Center

    525 E 68th St
    New York, NY 10065
    Recipient of 5
    hospital awards
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