NPPES file of Aug 9, 2026

Sarah Cathrine Lazarski, NP

Nurse Practitioner · Oak Park, IL

Sarah Cathrine Lazarski, NP is a nurse practitioner with a practice address in Oak Park, Illinois, and NPI 1699142711, issued on Aug 24, 2015. Check the license (Illinois 277001284, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1699142711
Name
Sarah Cathrine Lazarski
Credential
NP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
277001284 IL
Self-reported in NPPES; status is on the state search
Practice location
1100 Lake St Ste LL62, Oak Park, IL 60301
Phone
(244) 421-2302
Enumerated
Aug 24, 2015
Record last updated
Jan 6, 2025
Fax
(224) 442-2780
Medicare enrollment
Enrolled (PECOS I20150917001712); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest nurse practitioner records → All 4,892 in Illinois → Look up another NPI →

Verify Sarah Cathrine Lazarski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 277001284    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

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34% fewer Medicare Part D claims than the average nurse practitioner in 2024

727 Medicare Part D claims for 53 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.

  1. Sarah Lazarski727
  2. Specialty average1,109

Most prescribed

  1. Levothyroxine Sodium55 claims
  2. Rosuvastatin Calcium38 claims
  3. Furosemide36 claims
  4. Metoprolol Succinate32 claims
  5. Metformin Hcl30 claims
  6. Januvia29 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.

Sarah Cathrine Lazarski among 4,892 nurse practitioner records in Illinois

Sarah Cathrine Lazarski, NP is one of 4,892 nurse practitioner records with a practice address in Illinois. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 31% of them.

  • NPI issued2015 · 31% of these records are older, 64% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2015 · median 2018 among the 3,389 with a school on file
  • Record last updated2025 · 36% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nurse Practitioner providers in Illinois

There are 4,892 nurse practitioner records in Illinois.

All 4,892 in Illinois → Every provider in Oak Park → Nurse Practitioner nationwide →

The 8 nurse practitioner records with the nearest ZIP codes

  1. Nichole Galindez Rodriguez, APN-CNPOak Park, IL 603011467290544
  2. Meghan LeaheyOak Park, IL 603011669066320
  3. Smruti PatelOak Park, IL 603011982572236
  4. Eric Roberts, ARNPOak Park, IL 603011669554465
  5. Suha Ali, RNOak Park, IL 603021700554706
  6. Deanna Aubry, APNPOak Park, IL 603021457086076
  7. Yolanda Bradford, FNP-COak Park, IL 603021477151272
  8. Olivia Corrado, APRN, CNMOak Park, IL 603021699173856

Common questions

What is Sarah Cathrine Lazarski, NP's NPI number?

Sarah Cathrine Lazarski, NP's National Provider Identifier (NPI) is 1699142711, issued on Aug 24, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Sarah Cathrine Lazarski, NP located?

The NPPES record lists a practice address at 1100 Lake St Ste LL62, Oak Park, IL, 60301. Phone: (244) 421-2302. Providers update this record themselves, so call before visiting.

How can I verify Sarah Cathrine Lazarski, NP's license?

NPPES lists Illinois license number 277001284, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Sarah Cathrine Lazarski, NP prescribe under Medicare Part D?

In 2024, Sarah Cathrine Lazarski, NP had 727 Medicare Part D claims for 53 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.