Denis A. Ostrovskiy, M.D.
Neurology Physician · Lake Success, NY
Denis A. Ostrovskiy, M.D. is a neurology physician with a practice address in Lake Success, New York, and NPI 1437199668, issued on Jun 7, 2006. Check the license (New York 231798-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Denis A. Ostrovskiy
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 231798-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1991 Marcus Avenue, Lake Success, NY 11042
- Phone
- (516) 466-4700
- Enumerated
- Jun 7, 2006
- Record last updated
- May 9, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (516) 466-4810
- Medicare enrollment
- Enrolled (PECOS I20060413000648); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 1,778 in New York → Look up another NPI →
Also registered at 1991 Marcus Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maribel Barroso Tanlioco, PT, DPTPhysical Therapist1891741401
- Richard Blanck, M.D.Neurology Physician1548247125
- Anthony Cohen, M.D.Neurology Physician1154308732
- Jeffrey Kessler, M.D.Neurology Physician1760469316
- Sarah McElroy, LMSWSocial Worker1659790772
- Kerry Ojeda, D.P.T.Physical Therapist1932536265
Verify Denis A. Ostrovskiy 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 231798-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% more Medicare Part D claims than the average neurology physician in 2024
2,590 Medicare Part D claims for 493 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 70 claims were for opioids.
Most prescribed
- Prednisone230 claims
- Carbidopa-Levodopa219 claims
- Gabapentin177 claims
- Donepezil Hcl134 claims
- Cyclobenzaprine Hcl125 claims
- Meloxicam83 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): 95 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: $42,281.12
284 payments; by number, the most common kind was food and beverage; the largest payer was Alexion Pharmaceuticals, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 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
- Neurological Associates OF Long Island, PCNew Hyde Park, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Denis A. Ostrovskiy among 1,778 neurology physician records in New York
Denis A. Ostrovskiy, M.D. is one of 1,778 neurology 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 9% of them.
- NPI issued2006 · 9% of these records are older, 54% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1993 · median 2004 among the 1,238 with a school on file
- Record last updated2011 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 neurology physician records list a practice address in Lake Success
They are 11 of the 193 NPPES records with a practice address in Lake Success, and 1,778 neurology physician records in New York.
All 1,778 in New York → Every provider in Lake Success → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Richard Blanck, M.D.Lake Success, NY 110421548247125
- Irwin Blau, MDNew Hyde Park, NY 110421801869730
- Rina Caprarella, MDLake Success, NY 110421952337958
- Anthony Cohen, M.D.Lake Success, NY 110421154308732
- Arthur Farkash, MDNew Hyde Park, NY 110421871578807
- Slavina Gardella, M.DNew Hyde Park, NY 110421558334748
- Deborah Gruber, MDLake Success, NY 110421649218447
- Brian Hainline, MDLake Success, NY 110421811941818
Common questions
What is Denis A. Ostrovskiy, M.D.'s NPI number?
Denis A. Ostrovskiy, M.D.'s National Provider Identifier (NPI) is 1437199668, issued on Jun 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Denis A. Ostrovskiy, M.D. located?
The NPPES record lists a practice address at 1991 Marcus Avenue, Lake Success, NY, 11042. Phone: (516) 466-4700. Providers update this record themselves, so call before visiting.
How can I verify Denis A. Ostrovskiy, M.D.'s license?
NPPES lists New York license number 231798-1, 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 Denis A. Ostrovskiy, M.D. prescribe under Medicare Part D?
In 2024, Denis A. Ostrovskiy, M.D. had 2,590 Medicare Part D claims for 493 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Denis A. Ostrovskiy, M.D.'s MIPS final score?
The 2023 MIPS final score is 95 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.