NPPES file of Aug 9, 2026

Elizabeth Day, MSN, APRN, CCNS

Critical Care Medicine Clinical Nurse Specialist · Chicago, IL

Elizabeth Day, MSN, APRN, CCNS is a critical care medicine clinical nurse specialist with a practice address in Chicago, Illinois, and NPI 1881458099, issued on Feb 8, 2024. Check the license (Illinois 209005435, 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
1881458099
Name
Elizabeth Day
Credential
MSN, APRN, CCNS
Primary taxonomy
Critical Care Medicine Clinical Nurse Specialist 364SC0200X
License number
209005435 IL
Self-reported in NPPES; status is on the state search
Practice location
1620 W Harrison St, Chicago, IL 60612
Phone
(312) 942-5000
Enumerated
Feb 8, 2024
Record last updated
Feb 8, 2024
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest critical care medicine clinical nurse specialist records → All 25 in Illinois → Look up another NPI →

Also registered at 1620 W Harrison St

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

  1. Kylie Abernathy, OTOccupational Therapist1518489269
  2. Iris Abrahantes Morales, MDObstetrics & Gynecology Physician1164155164
  3. Sunaina Addanki, MDInternal Medicine Physician1396593349
  4. Favour AdebayoPhysical Therapist1245072081
  5. Adebanke Adeyemi, MDInternal Medicine Physician1922933936
  6. Emily Adochio-Clancy, MDInfectious Disease Physician1629606975

Verify Elizabeth Day 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 209005435    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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Industry payments in 2024: $66.89

1 payment: food and beverage; the largest payer was Molnlycke Health Care US, LLC. The 52 providers of this specialty with any payment received $678.21 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Elizabeth Day$66.89
  2. Specialty average$678.21

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

Elizabeth Day among 25 critical care medicine clinical nurse specialist records in Illinois

Elizabeth Day, MSN, APRN, CCNS is one of 25 critical care medicine clinical nurse specialist records with a practice address in Illinois. 48% 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 88% of them.

  • NPI issued2024 · 88% of these records are older, 8% newer
  • In a Medicare fileYes · 48% of these records are
  • In the CMS Doctors and Clinicians fileNo · 20% of these records are
  • Record last updated2024 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 364SC0200X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine Clinical Nurse Specialist providers in Illinois

There are 25 critical care medicine clinical nurse specialist records in Illinois.

All 25 in Illinois → Every provider in Chicago → Critical Care Medicine Clinical Nurse Specialist nationwide →

The 8 critical care medicine clinical nurse specialist records with the nearest ZIP codes

  1. Mary Dignan, CNSChicago, IL 606121801864806
  2. Mary Lyons, RN, APNChicago, IL 606121649475559
  3. Kathleen Posa-Kearney, APRNChicago, IL 606121053122374
  4. Catherine Ryan, PHD, RN, APN, CCRNChicago, IL 606121982918496
  5. Kathleen Grady, CNSChicago, IL 606111548371230
  6. Linda Morris, PH.D., APN, CCNSChicago, IL 606111124240353
  7. Stacie Santangelo, RN, MS, APNChicago, IL 606111275848244
  8. Ashley VerbekeChicago, IL 606371952087280

Common questions

What is Elizabeth Day, MSN, APRN, CCNS's NPI number?

Elizabeth Day, MSN, APRN, CCNS's National Provider Identifier (NPI) is 1881458099, issued on Feb 8, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth Day, MSN, APRN, CCNS located?

The NPPES record lists a practice address at 1620 W Harrison St, Chicago, IL, 60612. Phone: (312) 942-5000. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth Day, MSN, APRN, CCNS's license?

NPPES lists Illinois license number 209005435, 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.