Stephen John Windsor, MD
Hematology & Oncology Physician · Little Silver, NJ
Stephen John Windsor, MD is a hematology & oncology physician with a practice address in Little Silver, New Jersey, and NPI 1902885122, issued on Jan 16, 2006. Check the license (New Jersey 25MA06740200, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Stephen John Windsor
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 25MA06740200 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 39 Sycamore Ave, Little Silver, NJ 07739
- Phone
- (732) 576-8610
- Enumerated
- Jan 16, 2006
- Record last updated
- Nov 29, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (732) 576-8823
- Medicaid ID
- 76296303 NJ
- Medicare enrollment
- Enrolled (PECOS I20050817000435); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 399 in New Jersey → Look up another NPI →
Also registered at 39 Sycamore Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Konstantin Astafurov, M.D., PH.DRetina Specialist (Ophthalmology) Physician1730574872
- Laura Mazza, ANP-BCAdult Health Nurse Practitioner1538599766
- Raye McDonald, RDNRegistered Dietitian1366187312
- Meghan Powner, PA-CPhysician Assistant1275184822
- Rupan TrikhaOphthalmology Physician1003033689
- Martin Uram, M.D.Ophthalmology Physician1396781506
Verify Stephen John Windsor in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA06740200Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
806 Medicare Part D claims for 166 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims. 39 claims were for opioids.
Most prescribed
- Anastrozole61 claims
- Letrozole53 claims
- Eliquis40 claims
- Xarelto38 claims
- Hydroxyurea36 claims
- Gabapentin34 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): 75.8 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: $572.75
36 payments; by number, the most common kind was food and beverage; the largest payer was Celgene Corporation. 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
- Hackensack Meridian Health Medical Group - Specialty Care PCRed Bank, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen John Windsor among 399 hematology & oncology physician records in New Jersey
Stephen John Windsor, MD is one of 399 hematology & oncology physician records with a practice address in New Jersey. 84% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 52% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1986 · median 2002 among the 294 with a school on file
- Record last updated2017 · 59% 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 Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 hematology & oncology physician records list a practice address in Little Silver
They are 4 of the 217 NPPES records with a practice address in Little Silver, and 399 hematology & oncology physician records in New Jersey.
All 399 in New Jersey → Every provider in Little Silver → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Denis Fitzgerald, M.D.Little Silver, NJ 077391265427223
- Kimberly Salwitz, M.D.Little Silver, NJ 077391144518457
- Iuliana Shapira, MDLittle Silver, NJ 077391760553762
- Aileen Chen, M.D.Holmdel, NJ 077331194753350
- Krishnan Gopal, MDHolmdel, NJ 077331255411716
- Willa Gartenhaus, M.D.Marlboro, NJ 077461134216039
- Seema Varma, M.D.Marlboro, NJ 077461588820708
- Manmeet Ahluwalia, DOHowell, NJ 077311053706168
Common questions
What is Stephen John Windsor, MD's NPI number?
Stephen John Windsor, MD's National Provider Identifier (NPI) is 1902885122, issued on Jan 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen John Windsor, MD located?
The NPPES record lists a practice address at 39 Sycamore Ave, Little Silver, NJ, 07739. Phone: (732) 576-8610. Providers update this record themselves, so call before visiting.
How can I verify Stephen John Windsor, MD's license?
NPPES lists New Jersey license number 25MA06740200, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Stephen John Windsor, MD prescribe under Medicare Part D?
In 2024, Stephen John Windsor, MD had 806 Medicare Part D claims for 166 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Stephen John Windsor, MD's MIPS final score?
The 2023 MIPS final score is 75.8 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.