Katya Ostrovsky, CNP
Nurse Practitioner · Worcester, MA
Katya Ostrovsky, CNP is a nurse practitioner with a practice address in Worcester, Massachusetts, and NPI 1194881789, issued on Dec 28, 2006. Check the license (Massachusetts RN218295, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katya Ostrovsky
- Credential
- CNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- RN218295 MA
218295 MA
Self-reported in NPPES; status is on the state search - Practice location
- 291 Lincoln St, Worcester, MA 01605
- Phone
- (508) 334-6251
- Enumerated
- Dec 28, 2006
- Record last updated
- May 1, 2022
- Fax
- (508) 334-6906
- Medicaid ID
- 110097237A MA
- Medicare enrollment
- Enrolled (PECOS I20120113000074); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,480 in Massachusetts → Look up another NPI →
Also registered at 291 Lincoln St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Katya Ostrovsky in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN218295Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% more Medicare Part D claims than the average nurse practitioner in 2024
2,080 Medicare Part D claims for 208 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 146 claims were for opioids.
Most prescribed
- Gabapentin89 claims
- Furosemide85 claims
- Atorvastatin Calcium81 claims
- Eliquis78 claims
- Levothyroxine Sodium75 claims
- Lorazepam72 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): 97 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).
Bills Medicare through one group practice
- Umass Memorial Medical Group IncWorcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katya Ostrovsky among 3,480 nurse practitioner records in Massachusetts
Katya Ostrovsky, CNP is one of 3,480 nurse practitioner records with a practice address in Massachusetts. 71% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 78% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2001 · median 2017 among the 1,963 with a school on file
- Record last updated2022 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
499 nurse practitioner records list a practice address in Worcester
They are 499 of the 13,166 NPPES records with a practice address in Worcester, and 3,480 nurse practitioner records in Massachusetts.
All 3,480 in Massachusetts → Every provider in Worcester → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Josephine Banigo, NPWorcester, MA 016051780658021
- Jane Baron, NPWorcester, MA 016051992779243
- Alice Bonner, GNPWorcester, MA 016051366427551
- Cindy Brown, NPWorcester, MA 016051992779227
- Mary Burke, NPWorcestor, MA 016051255311270
- Anne Crowell, GNPWorcester, MA 016051598744559
- Susanne Duszlak, NPWorcester, MA 016051811961477
- Marylu Garrow, NPWorcester, MA 016051316918295
Common questions
What is Katya Ostrovsky, CNP's NPI number?
Katya Ostrovsky, CNP's National Provider Identifier (NPI) is 1194881789, issued on Dec 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katya Ostrovsky, CNP located?
The NPPES record lists a practice address at 291 Lincoln St, Worcester, MA, 01605. Phone: (508) 334-6251. Providers update this record themselves, so call before visiting.
How can I verify Katya Ostrovsky, CNP's license?
NPPES lists Massachusetts license number RN218295, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Katya Ostrovsky, CNP prescribe under Medicare Part D?
In 2024, Katya Ostrovsky, CNP had 2,080 Medicare Part D claims for 208 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Katya Ostrovsky, CNP's MIPS final score?
The 2023 MIPS final score is 97 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.