NPPES file of Aug 9, 2026

Erika Lynn O'Brien, DNP, AGACNP-BC, CCRN

Gerontology Nurse Practitioner · Rock Island, IL

Erika Lynn O'Brien, DNP, AGACNP-BC, CCRN is a gerontology nurse practitioner with a practice address in Rock Island, Illinois, and NPI 1255904322, issued on Jul 19, 2021. Check the license (Illinois 041426969, 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
1255904322
Name
Erika Lynn O'Brien
Credential
DNP, AGACNP-BC, CCRN
Primary taxonomy
Gerontology Nurse Practitioner 363LG0600X
License number
041426969 IL
Self-reported in NPPES; status is on the state search
Practice location
2570 24TH St Ste 24, Rock Island, IL 61201
Phone
(309) 779-3670
Enumerated
Jul 19, 2021
Record last updated
Jul 19, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20220315001650); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2021
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 gerontology nurse practitioner records → All 292 in Illinois → Look up another NPI →

Verify Erika Lynn O'Brien 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 041426969    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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Bills Medicare through one group practice

  1. Trinity Medical CenterRock Island, IL

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

Erika Lynn O'Brien among 292 gerontology nurse practitioner records in Illinois

Erika Lynn O'Brien, DNP, AGACNP-BC, CCRN is one of 292 gerontology nurse practitioner records with a practice address in Illinois. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 58% of them.

  • NPI issued2021 · 58% of these records are older, 34% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2021 · median 2019 among the 201 with a school on file
  • Record last updated2021 · 34% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gerontology Nurse Practitioner providers in Illinois

There are 292 gerontology nurse practitioner records in Illinois.

All 292 in Illinois → Every provider in Rock Island → Gerontology Nurse Practitioner nationwide →

The 8 gerontology nurse practitioner records with the nearest ZIP codes

  1. Alissa Gordon, APN, DNPRock Island, IL 612011326563917
  2. Saysha Bolden, AGACNP-BCMoline, IL 612651497131304
  3. Kelli Miller, APNMoline, IL 612651952777666
  4. Hayley Mills, DNP, AGACNP-BCMoline, IL 612651356019467
  5. Sarah Bowen, APNRockford, IL 611141649781741
  6. Lynette Castronovo, N.P.Rockford, IL 611141821055484
  7. Kyna Lucas, APRNRockford, IL 611141073475422
  8. Marilyn Morgan, N.P.Rockford, IL 611141669422283

Common questions

What is Erika Lynn O'Brien, DNP, AGACNP-BC, CCRN's NPI number?

Erika Lynn O'Brien, DNP, AGACNP-BC, CCRN's National Provider Identifier (NPI) is 1255904322, issued on Jul 19, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Erika Lynn O'Brien, DNP, AGACNP-BC, CCRN located?

The NPPES record lists a practice address at 2570 24TH St Ste 24, Rock Island, IL, 61201. Phone: (309) 779-3670. Providers update this record themselves, so call before visiting.

How can I verify Erika Lynn O'Brien, DNP, AGACNP-BC, CCRN's license?

NPPES lists Illinois license number 041426969, 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.