NPPES file of Aug 9, 2026

Shannon Messerges, NP-C

Family Nurse Practitioner · Naperville, IL

Shannon Messerges, NP-C is a family nurse practitioner with a practice address in Naperville, Illinois, and NPI 1528430725, issued on Oct 27, 2015. Check the license (Illinois 209013438, 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
1528430725
Name
Shannon Messerges
Credential
NP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
209013438 IL
Self-reported in NPPES; status is on the state search
Practice location
640 S Washington St Ste 180, Naperville, IL 60540
Phone
(815) 942-6323
Enumerated
Oct 27, 2015
Record last updated
May 24, 2023
Fax
(815) 942-6363
Medicare enrollment
Enrolled (PECOS I20260323002334); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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Also registered at 640 S Washington St Ste 180

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

  1. Patricia Badway, APRNFamily Nurse Practitioner1518525476
  2. Marie Debartolo, APNNurse Practitioner1689921595
  3. Jennifer Dziatkowiec, LCSWClinical Social Worker1154810919
  4. Nathalia Padilla Diaz, PSYDClinical Psychologist1891554242
  5. Erin Richardson, LCSWClinical Social Worker1396297370
  6. Charlene Sanuade, LCSWClinical Social Worker1639540339

Verify Shannon Messerges 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 209013438
    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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35% fewer Medicare Part D claims than the average family nurse practitioner in 2024

854 Medicare Part D claims for 165 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Shannon Messerges854
  2. Specialty average1,305

Most prescribed

  1. Buspirone Hcl62 claims
  2. Gabapentin60 claims
  3. Alprazolam49 claims
  4. Bupropion Xl42 claims
  5. Quetiapine Fumarate39 claims
  6. Sertraline Hcl37 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $1,645.11

38 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Shannon Messerges$1,645.11
  2. Specialty average$650.95

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. Dupage Medical Group LtdWinfield, IL
  2. Mercy HospitalPortland, ME

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

Shannon Messerges among 7,639 family nurse practitioner records in Illinois

Shannon Messerges, NP-C 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 2015, is newer than 24% of them.

  • NPI issued2015 · 24% of these records are older, 70% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2023 · median 2018 among the 4,778 with a school on file
  • Record last updated2023 · 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.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Megan Biederman, NPNaperville, IL 605401316276538
  2. Michael Coffel, FNP-BCNaperville, IL 605401275795866
  3. Jessica Harnish, NPNaperville, IL 605401427453539
  4. Jennifer Hemmelgarn, CNPNaperville, IL 605401720394208
  5. Alison Lennhardt, FNP-CNaperville, IL 605401366866501
  6. Cheryl Lorenzin, NPNaperville, IL 605401417226986
  7. Abigail Murphy, APNNaperville, IL 605401164812988
  8. Jeanne Ondyak, CNPNaperville, IL 605401346202165

Common questions

What is Shannon Messerges, NP-C's NPI number?

Shannon Messerges, NP-C's National Provider Identifier (NPI) is 1528430725, issued on Oct 27, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Shannon Messerges, NP-C located?

The NPPES record lists a practice address at 640 S Washington St Ste 180, Naperville, IL, 60540. Phone: (815) 942-6323. Providers update this record themselves, so call before visiting.

How can I verify Shannon Messerges, NP-C's license?

NPPES lists Illinois license number 209013438, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Shannon Messerges, NP-C prescribe under Medicare Part D?

In 2024, Shannon Messerges, NP-C had 854 Medicare Part D claims for 165 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions 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.