NPPES file of Aug 9, 2026

Allison L. Usher, APN-CRNA

Certified Registered Nurse Anesthetist · Oak Lawn, IL

Allison L. Usher, APN-CRNA is a certified registered nurse anesthetist with a practice address in Oak Lawn, Illinois, and NPI 1578385639, issued on Oct 30, 2024. Check the license (Illinois 209030884, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1578385639
Name
Allison L. Usher
Credential
APN-CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
209030884 IL
Self-reported in NPPES; status is on the state search
Practice location
4440 W 95TH St, Oak Lawn, IL 60453
Phone
(708) 684-8000
Enumerated
Oct 30, 2024
Record last updated
May 11, 2026
Medicare enrollment
Enrolled (PECOS I20241126003432); 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 certified registered nurse anesthetist records → All 2,444 in Illinois → Look up another NPI →

Also registered at 4440 W 95TH St

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

  1. Nadia Abdessalam, FNP-BCFamily Nurse Practitioner1356888283
  2. Akram Abdoue, M.D.Anesthesiology Physician1992752489
  3. Ahmad Abdulla, MDEmergency Medicine Physician1467202556
  4. Joseph Abraham, CRNACertified Registered Nurse Anesthetist1831653401
  5. Katherine Absalon, MOT, OTR/LOccupational Therapist1457753436
  6. Tassneem Abu-Rezeq, DNP, APRN, CPNP-ACPediatric Nurse Practitioner1831904663

Verify Allison L. Usher 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 209030884    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

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

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Bills Medicare through 2 group practices

  1. Advocate Health And Hospitals CorporationOak Lawn, IL
  2. Endeavor Health Medical GroupEvanston, IL

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

Allison L. Usher among 2,444 certified registered nurse anesthetist records in Illinois

Allison L. Usher, APN-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 2024, is newer than 94% of them.

  • NPI issued2024 · 94% of these records are older, 3% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2024 · median 2015 among the 1,926 with a school on file
  • Record last updated2026 · 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).

Certified Registered Nurse Anesthetist providers in Illinois

There are 2,444 certified registered nurse anesthetist records in Illinois.

All 2,444 in Illinois → Every provider in Oak Lawn → Certified Registered Nurse Anesthetist nationwide →

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

  1. Joseph Abraham, CRNAOak Lawn, IL 604531831653401
  2. Alaina BeckerOak Lawn, IL 604531205374808
  3. Jennifer Bell, RN, BSN, DNPOak Lawn, IL 604531144739210
  4. Rachel Betke, CRNA, DNPOak Lawn, IL 604531053826255
  5. Marygrace Coll, CRNAOak Lawn, IL 604531346337250
  6. Marcy Doheny, CRNAOak Lawn, IL 604531639603905
  7. Richard Janicki, CRNAOak Lawn, IL 604531942472410
  8. Christina Johnson, CRNA, MSOak Lawn, IL 604531538497565

Common questions

What is Allison L. Usher, APN-CRNA's NPI number?

Allison L. Usher, APN-CRNA's National Provider Identifier (NPI) is 1578385639, issued on Oct 30, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Allison L. Usher, APN-CRNA located?

The NPPES record lists a practice address at 4440 W 95TH St, Oak Lawn, IL, 60453. Phone: (708) 684-8000. Providers update this record themselves, so call before visiting.

How can I verify Allison L. Usher, APN-CRNA's license?

NPPES lists Illinois license number 209030884, as entered by the provider. 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.

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.