Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. John Gregory Mears, MD

Individual provider Hematology & Oncology Physician · NPI 1619057247

Dr. John Gregory Mears, MD is a Hematology in Cortlandt Manor, New York. Graduated from Columbia University College of Physicians and Surgeons in 1973, 53 years ago. Practices with The Westchester Medical Practice PC, a 199-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
53
Trained at
Columbia University College of Physicians and Surgeons
Licensed in
NY
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1978 Crompond Rd Ste G1
Cortlandt Manor, NY 10567-4116
Phone: (914) 293-8400
Fax: (914) 293-8423
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 123762 (NY)
Hematology (Internal Medicine) Physician Taxonomy 207RH0000X · Licence 123762 (NY)

Record details

NPI number1619057247
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 17, 2006
Last updated in NPPESDecember 19, 2024
Certification dateDecember 19, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolCOLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS
Graduated 1973 (53 years in practice)
Group practice The Westchester Medical Practice Pc — 199 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services