NPPES file of Aug 9, 2026

Sandi Darnell, APN

Family Nurse Practitioner · Naperville, IL

Sandi Darnell, APN is a family nurse practitioner with a practice address in Naperville, Illinois, and NPI 1700742707, issued on Jan 2, 2026. Check the license (Illinois 209.034620, 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
1700742707
Name
Sandi Darnell
Credential
APN
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
209.034620 IL
Self-reported in NPPES; status is on the state search
Practice location
2780 Willow Ridge Dr, Naperville, IL 60564
Phone
(630) 222-0489
Enumerated
Jan 2, 2026
Record last updated
Jan 30, 2026
Medicare enrollment
Enrolled (PECOS I20260306001881); 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 family nurse practitioner records → All 7,639 in Illinois → Look up another NPI →

Verify Sandi Darnell 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 209.034620    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 one group practice

  1. Metro Infectious Disease Consultants LLCAurora, IL

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

Sandi Darnell among 7,639 family nurse practitioner records in Illinois

Sandi Darnell, APN is one of 7,639 family nurse practitioner records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2026, is newer than 97% of them.

  • NPI issued2026 · 97% of these records are older, 0% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2025 · median 2018 among the 4,778 with a school on file
  • Record last updated2026 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

100 family nurse practitioner records list a practice address in Naperville

They are 100 of the 4,634 NPPES records with a practice address in Naperville, and 7,639 family nurse practitioner records in Illinois.

All 7,639 in Illinois → Every provider in Naperville → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Malia Bendis, APNNaperville, IL 605641821426032
  2. Pamela Bolyanatz, RN, MSN, APRN, BCNaperville, IL 605641477571347
  3. Staci Clabough, NPNaperville, IL 605641215495700
  4. Sarah ClarkNaperville, IL 605641063120855
  5. Mary Erickson, NPNaperville, IL 605641740375468
  6. Allynda Hammond, NURSE PRACTITIONERNaperville, IL 605641639737265
  7. Therese Hiller-Kozubik, N.P.Naperville, IL 605641821195496
  8. April Krakar, FNPNaperville, IL 605641437586799

Common questions

What is Sandi Darnell, APN's NPI number?

Sandi Darnell, APN's National Provider Identifier (NPI) is 1700742707, issued on Jan 2, 2026. An NPI identifies a provider in billing; it is not a license.

Where is Sandi Darnell, APN located?

The NPPES record lists a practice address at 2780 Willow Ridge Dr, Naperville, IL, 60564. Phone: (630) 222-0489. Providers update this record themselves, so call before visiting.

How can I verify Sandi Darnell, APN's license?

NPPES lists Illinois license number 209.034620, 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.