Olivia Anne Slezik, NP
Primary Care Nurse Practitioner · Worcester, MA
Olivia Anne Slezik, NP is a primary care nurse practitioner with a practice address in Worcester, Massachusetts, and NPI 1891378733, issued on Apr 29, 2021. Check the license (Massachusetts RN2327857, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Olivia Anne Slezik
- Credential
- NP
- Primary taxonomy
- Primary Care Nurse Practitioner 363LP2300X
- License number
- RN2327857 MA
Self-reported in NPPES; status is on the state search - Practice location
- 486 Chandler St, Worcester, MA 01602
- Phone
- (508) 929-8875
- Enumerated
- Apr 29, 2021
- Record last updated
- Apr 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (508) 929-8075
- Medicare enrollment
- Enrolled (PECOS I20211102002046); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest primary care nurse practitioner records → All 376 in Massachusetts → Look up another NPI →
Also registered at 486 Chandler St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Linda Rausch, LICSWClinical Social Worker1710293964
- Jill Terrien, NPAdult Health Nurse Practitioner1104105865
Verify Olivia Anne Slezik in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2327857Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% fewer Medicare Part D claims than the average primary care nurse practitioner in 2024
1,275 Medicare Part D claims for 388 beneficiaries, against an average of 1,492 among the 5,992 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 24 claims were for opioids.
Most prescribed
- Atorvastatin Calcium50 claims
- Amlodipine Besylate46 claims
- Prednisone46 claims
- Citalopram Hbr43 claims
- Lorazepam40 claims
- Doxycycline Monohydrate36 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
- Atrius Health IncConcord, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Olivia Anne Slezik among 376 primary care nurse practitioner records in Massachusetts
Olivia Anne Slezik, NP is one of 376 primary care nurse practitioner records with a practice address in Massachusetts. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 68% of them.
- NPI issued2021 · 68% of these records are older, 26% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2020 · median 2019 among the 196 with a school on file
- Record last updated2021 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP2300X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Primary Care Nurse Practitioner providers in Massachusetts
There are 376 primary care nurse practitioner records in Massachusetts.
All 376 in Massachusetts → Every provider in Worcester → Primary Care Nurse Practitioner nationwide →
The 8 primary care nurse practitioner records with the nearest ZIP codes
- Sara Brzykcy, N.P.Worcester, MA 016021518393065
- Michelle Letendre, APRNWorcester, MA 016031770736159
- Amanda Clancey, NPWorcester, MA 016041972938983
- Alicia Cooksey, NPWorcester, MA 016051669842175
- Althea Keeling, CNPWorcester, MA 016051942552567
- Rose Marie Nyakako, AGPCNP-BC, RNWorcester, MA 016051467877621
- Kristen ProphetWorcester, MA 016051639926793
- Donna Scavone, NPWorcester, MA 016051952367112
Common questions
What is Olivia Anne Slezik, NP's NPI number?
Olivia Anne Slezik, NP's National Provider Identifier (NPI) is 1891378733, issued on Apr 29, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Olivia Anne Slezik, NP located?
The NPPES record lists a practice address at 486 Chandler St, Worcester, MA, 01602. Phone: (508) 929-8875. Providers update this record themselves, so call before visiting.
How can I verify Olivia Anne Slezik, NP's license?
NPPES lists Massachusetts license number RN2327857, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Olivia Anne Slezik, NP prescribe under Medicare Part D?
In 2024, Olivia Anne Slezik, NP had 1,275 Medicare Part D claims for 388 beneficiaries; the average among primary care nurse practitioner prescribers was 1,492. 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.