NPPES file of Aug 9, 2026

Lauren M. Sladek, APN

Nurse Practitioner · Ottawa, IL

Lauren M. Sladek, APN is a nurse practitioner with a practice address in Ottawa, Illinois, and NPI 1982164471, issued on Mar 21, 2019. Check the license (Illinois 209019090, 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
1982164471
Name
Lauren M. Sladek
Credential
APN
Primary taxonomy
Nurse Practitioner 363L00000X
License number
209019090 IL
Self-reported in NPPES; status is on the state search
Practice location
1050 E Norris Dr, Ottawa, IL 61350
Phone
(815) 434-0276
Enumerated
Mar 21, 2019
Record last updated
Feb 16, 2022
Fax
(815) 434-0319
Medicare enrollment
Enrolled (PECOS I20190425001072); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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Also registered at 1050 E Norris Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mohammed Awad, D.O.Orthopaedic Surgery Physician1063733582
  2. Carmen Hooper, FNP-BCNurse Practitioner1336875848
  3. Amy Koehler, MS-CCC-AAudiologist1962744581
  4. Mauro Montevecchi, M.D.Cardiovascular Disease Physician1871770537
  5. Chin Swong, MDOtolaryngology Physician1306997911
  6. David Thompson, M.D.Cardiovascular Disease Physician1063673515

Verify Lauren M. Sladek 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 209019090
    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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65% more Medicare Part D claims than the average nurse practitioner in 2024

1,829 Medicare Part D claims for 434 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Lauren Sladek1,829
  2. Specialty average1,109

Most prescribed

  1. Atorvastatin Calcium182 claims
  2. Metoprolol Succinate152 claims
  3. Furosemide125 claims
  4. Rosuvastatin Calcium112 claims
  5. Losartan Potassium98 claims
  6. Amlodipine Besylate95 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

  1. Osf Multi-Specialty GroupOttawa, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

7 nurse practitioner records list a practice address in Ottawa

They are 7 of the 334 NPPES records with a practice address in Ottawa, and 4,892 nurse practitioner records in Illinois.

Other nurse practitioner records in Illinois

  1. Janice Abadilla, FNP-BCPeoria, IL1548157175
  2. Philomena AbebePark Ridge, IL1902780174
  3. Milagros Abellera, APNChicago, IL1528076239
  4. Edwina Abloh, APN-CNPSkokie, IL1689314098
  5. Sandra Abraham, CNPDwight, IL1982883245
  6. Sharon Abraham, APN-CNPArlington Heights, IL1396485884
  7. Hazel Acacio, APNPWauconda, IL1205471679
  8. Anthony Aceto, APRN, FNP-CSchaumburg, IL1891302956
  9. Francisco Acevedo, APRN, CNPMokena, IL1467446930
  10. Mina Acevedo, APRNGlenview, IL1972174688

Common questions

What is Lauren M. Sladek, APN's NPI number?

Lauren M. Sladek, APN's National Provider Identifier (NPI) is 1982164471, issued on Mar 21, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Lauren M. Sladek, APN located?

The NPPES record lists a practice address at 1050 E Norris Dr, Ottawa, IL, 61350. Phone: (815) 434-0276. Providers update this record themselves, so call before visiting.

How can I verify Lauren M. Sladek, APN's license?

NPPES lists Illinois license number 209019090, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Lauren M. Sladek, APN prescribe under Medicare Part D?

In 2024, Lauren M. Sladek, APN had 1,829 Medicare Part D claims for 434 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.

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.