Karen M. Kostroff, MD
Surgery Physician · Lake Success, NY
Karen M. Kostroff, MD is a surgery physician with a practice address in Lake Success, New York, and NPI 1083762751, issued on Jan 8, 2007. Check the license (New York 1429101, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Karen M. Kostroff
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 1429101 NY
Self-reported in NPPES; status is on the state search - Practice location
- 2001 Marcus Ave, Lake Success, NY 11042
- Phone
- (516) 775-7676
- Enumerated
- Jan 8, 2007
- Record last updated
- Jul 25, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (516) 222-8475
- Medicare enrollment
- Enrolled (PECOS I20110119000308); may accept Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 1979
- Entity
- Type 1 · individual
Also registered at 2001 Marcus Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Arthur Cohen, M.D.Gynecology Physician1447234596
- Michael Duffe, RPACPhysician Assistant1407842719
Verify Karen M. Kostroff 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 1429101Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14% fewer Medicare Part D claims than the average surgery physician in 2024
126 Medicare Part D claims for 58 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Anastrozole60 claims
- Letrozole20 claims
- Exemestane11 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): 91.3 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).
2 surgery physician records list a practice address in Lake Success
They are 2 of the 193 NPPES records with a practice address in Lake Success, and 2,053 surgery physician records in New York.
All 2 in Lake Success → All 2,053 in New York → Every provider in Lake Success →
Other surgery physician records in New York
- Ayman Abadeer, MDBrooklyn, NY1619268869
- Ahmad Abdelaal, MDBronx, NY1255880738
- Hossam Abdou, M.D.New York, NY1093247975
- Alexander Abdurakhmanov, MDBrooklyn, NY1538556196
- Deborah Abeles, M.D.Garden City, NY1063528925
- Sara Abou Azar, M.D.Buffalo, NY1689103541
- Georges Abou-Eid, M.D.Roslyn, NY1518017425
- Ziad Abouezzi, MDPoughkeepsie, NY1831178284
- Mohamad Abouzeid, M.D.Port Jefferson, NY1144464421
- Frederick Achildiev, MDBay Shore, NY1740467737
Common questions
What is Karen M. Kostroff, MD's NPI number?
Karen M. Kostroff, MD's National Provider Identifier (NPI) is 1083762751, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Karen M. Kostroff, MD located?
The NPPES record lists a practice address at 2001 Marcus Ave, Lake Success, NY, 11042. Phone: (516) 775-7676. Providers update this record themselves, so call before visiting.
How can I verify Karen M. Kostroff, MD's license?
NPPES lists New York license number 1429101, 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 Karen M. Kostroff, MD prescribe under Medicare Part D?
In 2024, Karen M. Kostroff, MD had 126 Medicare Part D claims for 58 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.
What is Karen M. Kostroff, MD's MIPS final score?
The 2023 MIPS final score is 91.3 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.