Olesya Ilashuk
Adult Health Nurse Practitioner · Teaneck, NJ
Olesya Ilashuk is an adult health nurse practitioner with a practice address in Teaneck, New Jersey, and NPI 1871153338, issued on Jun 17, 2019. Check the license (New Jersey 26NJ00924400, as entered in NPPES) with the New Jersey board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Olesya Ilashuk
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License number
- 26NJ00924400 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 870 Palisade Ave Ste 302, Teaneck, NJ 07666
- Phone
- (201) 836-9696
- Enumerated
- Jun 17, 2019
- Record last updated
- Jun 17, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190930002933); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 1,626 in New Jersey → Look up another NPI →
Also registered at 870 Palisade Ave Ste 302
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maria Daly, PAPhysician Assistant1649008293
- Megan LewisPhysician Assistant1518643535
- Katelyn Luter, NPPrimary Care Nurse Practitioner1770923336
- Alyssa Nelson, AGNP-CNurse Practitioner1821961558
Verify Olesya Ilashuk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
Search for license 26NJ00924400Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024
529 Medicare Part D claims for 211 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.
Most prescribed
- Ketoconazole109 claims
- Triamcinolone Acetonide104 claims
- Clobetasol Propionate76 claims
- Hydrocortisone65 claims
- Mupirocin49 claims
- Doxycycline Hyclate24 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.
Bills Medicare through one group practice
- Gangaram RagiTeaneck, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Olesya Ilashuk among 1,626 adult health nurse practitioner records in New Jersey
Olesya Ilashuk is one of 1,626 adult health nurse practitioner records with a practice address in New Jersey. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 79% of them.
- NPI issued2019 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 47% of these records are
- Graduated2019 · median 2014 among the 770 with a school on file
- Record last updated2019 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
26 adult health nurse practitioner records list a practice address in Teaneck
They are 26 of the 1,462 NPPES records with a practice address in Teaneck, and 1,626 adult health nurse practitioner records in New Jersey.
All 1,626 in New Jersey → Every provider in Teaneck → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Marina Atesle, NURSE PRACTITIONERTeaneck, NJ 076661851707749
- Regina Copeland, AGNP-CTeaneck, NJ 076661710421102
- Margaret Edwards, ANPTeaneck, NJ 076661861864316
- Marlene Fearon, ANP-CTeaneck, NJ 076661831688894
- Nancy Fremed, RN,MSN,APNTeaneck, NJ 076661710292396
- Denise Johnson, ANP-CTeaneck, NJ 076661497815997
- Angelo Mabasa, DNP, NP-CTeaneck, NJ 076661033305578
- John Masso, N.P.Teaneck, NJ 076661780820308
Common questions
What is Olesya Ilashuk's NPI number?
Olesya Ilashuk's National Provider Identifier (NPI) is 1871153338, issued on Jun 17, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Olesya Ilashuk located?
The NPPES record lists a practice address at 870 Palisade Ave Ste 302, Teaneck, NJ, 07666. Phone: (201) 836-9696. Providers update this record themselves, so call before visiting.
How can I verify Olesya Ilashuk's license?
NPPES lists New Jersey license number 26NJ00924400, as entered by the provider. Search the New Jersey board that licenses this profession; the NPPES record confirms identity only.
How much does Olesya Ilashuk prescribe under Medicare Part D?
In 2024, Olesya Ilashuk had 529 Medicare Part D claims for 211 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. Part D covers Medicare prescriptions only.
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.