Summary

John Gregory Mears specializes in oncology and hematology, bringing over five decades of medical expertise to cancer and blood disorder care. They graduated from Columbia University College of Physicians & Surgeons and have dedicated 53 years to helping patients navigate complex blood conditions and cancer treatments. They are fluent in English.

Mears practices at NewYork Presbyterian Hudson Valley Hospital and other locations throughout Cortlandt Manor and New York. They focus on treating conditions such as iron deficiency anemia, chronic lymphocytic leukemia, and anemia from heavy bleeding. Their procedural expertise includes blood tests, complete blood counts, and white blood cell differentials to help diagnose and monitor patient health. Patients have given them an average rating of 4.2 out of 5 stars.

Overview based on verified provider data

Quick Facts

  • 4.2
  • 53 years of experience
  • speaks English
  • Columbia University College Of Physicians & Surgeons
  • 4 written reviews
  • 2 specialties
  • 18 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 5 office locations

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. John Gregory Mears has 5 locations

The New York and Presbyterian Hospital

161 Fort Washington AveNew York, NY 10032
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Columbia University Medical Center Hematology Oncology

161 Fort Washington Ave Fl 9New York, NY 10032
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 5:00 pm
SatClosed
SunClosed

Nyp Hudson Valley Comprehensive Cancer Center

1978 Crompond Rd Ste G1Cortlandt Manor, NY 10567
Mon8:30 am - 5:00 pm
Tue8:30 am - 5:00 pm
Wed8:30 am - 5:00 pm
Thu8:30 am - 5:00 pm
Fri8:30 am - 5:00 pm
SatClosed
SunClosed

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Dr. John Gregory Mears
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Dr. John Gregory MearsOlayode Babatunde, MDKevin David, MDJake June-Koo Lee, MD, PhD
OncologyOncologyOncologyOncology
Accepts New Patients Accepts New Patients Accepts New Patients
4.2 
4.5 
53 Years of Experience 7 Years of Experience 24 Years of Experience 18 Years of Experience
No Virtual Visit Option No Virtual Visit Option Virtual Visit Available No Virtual Visit Option
Speaks English Speaks English Speaks English Speaks English
Cortlandt Manor , NYMontvale , NJMontvale , NJWest Harrison , NY
Med School: Columbia University College Of Physicians & Surgeons Med School: Duke University School Of Medicine Med School: Columbia University College Of Physicians And Surgeons Med School: Seoul National University College Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. John Gregory Mears

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. John Gregory Mears has the following 2 specialties

Specialty Expertise

Dr. John Gregory Mears has the following 18 areas of expertise

  • Acute Myeloid Leukemia
  • Blood Cancer
  • Bone Marrow Transplant
  • Breast Cancer
  • Chemotherapy
  • Chronic B-Cell Lymphocytic Leukemia
  • Chronic Myeloid Leukemia
  • Chronic Myelomonocytic Leukemia
  • Deep Vein Thrombosis
  • Hematology
  • Hepatitis C
  • Iron-Deficiency Anemia
  • Leukemia
  • Lymphoma
  • Multiple Myeloma (Cancer of Plasma Cells)
  • Myelofibrosis
  • Myeloma
  • Sickle Cell Anemia

Certifications, License, & Education

53 Years Experience

Dr. John Gregory Mears holds an expired medical license in the state of New York.

Medical License

Medical Doctor with an expired medical license in the state of New York that expired in 2025.

Education & Training

Medical School

Graduated from Columbia University College Of Physicians & Surgeons in 1973.

NPI Number

Dr. Mears' NPI number is 1619057247.

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Frequently Asked Questions

Is Dr. John Gregory Mears accepting new patients?
Dr. John Gregory Mears has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. John Gregory Mears accept my insurance?
You can see the insurance plans that Dr. John Gregory Mears accepts on their Vitals profile.
How can I make an appointment with Dr. John Gregory Mears?
You can find contact information for Dr. John Gregory Mears here on Vitals.
Which hospitals is Dr. John Gregory Mears affiliated with?
Dr. John Gregory Mears is affiliated with Newyork Presbyterian Hudson Valley Hospital.
Where is Dr. John Gregory Mears's office located?
Dr. John Gregory Mears's office is located at 1980 Crompond Rd, Cortlandt Manor, NY, 10567.

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