Jeffrey M. Stewart, MD
Hematology & Oncology Physician · Middletown, NY
Jeffrey M. Stewart, MD is a hematology & oncology physician with a practice address in Middletown, New York, and NPI 1982715892, issued on Aug 31, 2006. Check the license (New York 195350, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Jeffrey M. Stewart
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 195350 NY
Self-reported in NPPES; status is on the state search - Practice location
- 185 Rykowski LN, Middletown, NY 10941
- Phone
- (845) 703-6999
- Enumerated
- Aug 31, 2006
- Record last updated
- Oct 16, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (845) 703-6297
- Medicaid ID
- 01524065 NY
- Medicare enrollment
- Enrolled (PECOS I20051228000795); accepts Medicare assignment
- Medical or professional school
- University Of Florida College Of Medicine, 1988
- Entity
- Type 1 · individual
Also registered at 185 Rykowski LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ronen Harel, DOHematology & Oncology Physician1750671228
- Joanne Lalanne, N.P.Adult Health Nurse Practitioner1215368659
- Kimberly Marino, PA-CMedical Physician Assistant1225328776
Verify Jeffrey M. Stewart 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 195350Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,578 Medicare Part D claims for 240 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims. 124 claims were for opioids.
Most prescribed
- Eliquis145 claims
- Warfarin Sodium142 claims
- Anastrozole96 claims
- Xarelto82 claims
- Ondansetron Odt70 claims
- Abiraterone Acetate59 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 practice group's MIPS final score for 2023 (Medicare payment program): 91.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $55.88
1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. 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
- Crystal Run Healthcare Physicians LLPMiddletown, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hematology & Oncology Physician providers in New York
There are 1,163 hematology & oncology physician records in New York.
Other hematology & oncology physician records in New York
- Anum Aamir, M.DAstoria, NY1245611052
- Mohammad Maher Abdul Hay, MDNew York, NY1447494729
- Wassim Abida, MD, PHDNew York, NY1518101096
- Mouhamed Yazan Abou-Ismail, M.D.Rochester, NY1336553676
- George Abraham, MDRochester, NY1225552649
- Avram Abramowitz, M.D.Fresh Meadows, NY1407855489
- Ghaith Abu Zeinah, M.D.New York, NY1174962146
- Jose Acostamadiedo, MDPlattsburgh, NY1013910256
- Sylvia Adams, MDNew York, NY1881767903
- Amit Agarwal, M.D.New York, NY1275790826
Common questions
What is Jeffrey M. Stewart, MD's NPI number?
Jeffrey M. Stewart, MD's National Provider Identifier (NPI) is 1982715892, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey M. Stewart, MD located?
The NPPES record lists a practice address at 185 Rykowski LN, Middletown, NY, 10941. Phone: (845) 703-6999. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey M. Stewart, MD's license?
NPPES lists New York license number 195350, 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 Jeffrey M. Stewart, MD prescribe under Medicare Part D?
In 2024, Jeffrey M. Stewart, MD had 1,578 Medicare Part D claims for 240 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Jeffrey M. Stewart, MD's MIPS final score?
The 2023 MIPS final score is 91.1 of 100, reported for the practice group. 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.