John Gregory Mears, M.D.
Hematology & Oncology Physician · Cortlandt Manor, NY
John Gregory Mears, M.D. is a hematology & oncology physician with a practice address in Cortlandt Manor, New York, and NPI 1619057247, issued on Oct 17, 2006. Check the license (New York 123762, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- John Gregory Mears
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 123762 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1978 Crompond RD Ste G1, Cortlandt Manor, NY 10567
- Phone
- (914) 293-8400
- Enumerated
- Oct 17, 2006
- Record last updated
- Dec 19, 2024
- Fax
- (914) 293-8423
- Medicare enrollment
- Enrolled (PECOS I20120127000774); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 1973
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,163 in New York → Look up another NPI →
Also registered at 1978 Crompond RD Ste G1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Zylma Flores, FNPFamily Nurse Practitioner1538412499
- Vinit Karur, M.D.Hematology & Oncology Physician1588825962
- Aishwarya Shah, MDRadiation Oncology Physician1750965125
Verify John Gregory Mears in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 123762Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
639 Medicare Part D claims for 120 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.
Most prescribed
- Hydroxyurea74 claims
- Eliquis60 claims
- Imbruvica56 claims
- Brukinsa43 claims
- Xarelto37 claims
- Allopurinol31 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $28.61
1 payment: food and beverage; the largest payer was Daiichi Sankyo Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- The Westchester Medical Practice PCCortlandt Manor, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Gregory Mears among 1,163 hematology & oncology physician records in New York
John Gregory Mears, M.D. is one of 1,163 hematology & oncology physician records with a practice address in New York. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 53% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1973 · median 2002 among the 833 with a school on file
- Record last updated2024 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in New York
There are 1,163 hematology & oncology physician records in New York.
All 1,163 in New York → Every provider in Cortlandt Manor → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Vinit Karur, M.D.Cortlandt Manor, NY 105671588825962
- Geeta George, MDPeekskill, NY 105661548344500
- Geetha Naik, MDMount Vernon, NY 105501245299577
- Joseph Bottino, MDMount Kisco, NY 105491407883937
- Nicole Lanatra, M.D.Mount Kisco, NY 105491538359393
- Heather Katz, D.O.Sleepy Hollow, NY 105911740670397
- Keyur Thakar, M.D.Sleepy Hollow, NY 105911992038251
- Xuejun Wang, MDSleepy Hollow, NY 105911376006247
Common questions
What is John Gregory Mears, M.D.'s NPI number?
John Gregory Mears, M.D.'s National Provider Identifier (NPI) is 1619057247, issued on Oct 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Gregory Mears, M.D. located?
The NPPES record lists a practice address at 1978 Crompond RD Ste G1, Cortlandt Manor, NY, 10567. Phone: (914) 293-8400. Providers update this record themselves, so call before visiting.
How can I verify John Gregory Mears, M.D.'s license?
NPPES lists New York license number 123762, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Gregory Mears, M.D. prescribe under Medicare Part D?
In 2024, John Gregory Mears, M.D. had 639 Medicare Part D claims for 120 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is John Gregory Mears, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.