NPPES file of Aug 9, 2026

Kathleen O'Sullivan Niles, CRNA

Certified Registered Nurse Anesthetist · Olympia Fields, IL

Kathleen O'Sullivan Niles, CRNA is a certified registered nurse anesthetist with a practice address in Olympia Fields, Illinois, and NPI 1528259389, issued on Aug 7, 2007. Check the license 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
1528259389
Name
Kathleen O'Sullivan Niles
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
Practice location
20201 Crawford Ave, Olympia Fields, IL 60461
Phone
(708) 747-4000
Enumerated
Aug 7, 2007
Record last updated
Aug 7, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20071226000433); 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.
Download card Updates feed

Also registered at 20201 Crawford Ave

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

  1. Marwa Abdul BasithStudent in an Organized Health Care Education/Training Program1215870654
  2. Veronica Abegunde, MDHospitalist Physician1740500826
  3. Amir Abusharif, DOStudent in an Organized Health Care Education/Training Program1619663986
  4. Gremah Adam Aboubacar, DOStudent in an Organized Health Care Education/Training Program1619662392
  5. Tejaswini Addanki, DOStudent in an Organized Health Care Education/Training Program1306589163
  6. Saria Adnan Sultan, DOInternal Medicine Physician1679216196

Verify Kathleen O'Sullivan Niles in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck 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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Industry payments in 2024: $64.12

4 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 24,076 providers of this specialty with any payment received $135.08 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kathleen Niles$64.12
  2. Specialty average$135.08

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. American Anesthesiology Associates OF Illinois, S.C.Joliet, IL
  2. North American Partners IN Anesthesia Illinois LLCBerwyn, IL

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

Kathleen O'Sullivan Niles among 2,444 certified registered nurse anesthetist records in Illinois

Kathleen O'Sullivan Niles, CRNA is one of 2,444 certified registered nurse anesthetist records with a practice address in Illinois. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 27% of them.

  • NPI issued2007 · 27% of these records are older, 66% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2007 · median 2015 among the 1,926 with a school on file
  • Record last updated2007 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 certified registered nurse anesthetist records list a practice address in Olympia Fields

They are 17 of the 684 NPPES records with a practice address in Olympia Fields, and 2,444 certified registered nurse anesthetist records in Illinois.

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Laila Budhwani, CRNAOlympia Fields, IL 604611043355498
  2. Parthenia Davis, CRNAOlympia Fields, IL 604611306990288
  3. Linda Dee, CRNAOlympia Fields, IL 604611306990395
  4. Julio Esparza, DR.Olympia Fields, IL 604611306407861
  5. Kelly Estes-Bacchus, CRNAOlympia Fields, IL 604611316131410
  6. Cherie Hunt, CRNAOlympia Fields, IL 604611861678138
  7. Erin Jennings Lugowski, CRNAOlympia Fields, IL 604611245384130
  8. Maryellen Kilkenny, CRNAOlympia Fields, IL 604611639222557

Common questions

What is Kathleen O'Sullivan Niles, CRNA's NPI number?

Kathleen O'Sullivan Niles, CRNA's National Provider Identifier (NPI) is 1528259389, issued on Aug 7, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Kathleen O'Sullivan Niles, CRNA located?

The NPPES record lists a practice address at 20201 Crawford Ave, Olympia Fields, IL, 60461. Phone: (708) 747-4000. Providers update this record themselves, so call before visiting.

How can I verify Kathleen O'Sullivan Niles, CRNA's license?

Search the Illinois board that licenses this profession; the NPPES record confirms identity 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.