NPPES file of Aug 9, 2026

Mary Marguerite Manseau, APN-CNP

Nurse Practitioner · Naperville, IL

Mary Marguerite Manseau, APN-CNP is a nurse practitioner with a practice address in Naperville, Illinois, and NPI 1952110595, issued on Jan 7, 2025. Check the license (Illinois 209031964, 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
1952110595
Name
Mary Marguerite Manseau
Credential
APN-CNP
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
209031964 IL
041.402094 IL
Self-reported in NPPES; status is on the state search
Practice location
801 S Washington St, Naperville, IL 60540
Phone
(630) 527-3000
Enumerated
Jan 7, 2025
Record last updated
Oct 31, 2025
Fax
(630) 527-3581
Medicare enrollment
Enrolled (PECOS I20250416001653); 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 nurse practitioner records → All 4,892 in Illinois → Look up another NPI →

Also registered at 801 S Washington St

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

  1. Sean Adams, M.D.Anesthesiology Physician1598713661
  2. Saroosh Ahmed, MDEmergency Medicine Physician1639335078
  3. Faisal Akbari, M.DHospitalist Physician1740598705
  4. Catherine AlerNurse Practitioner1134584964
  5. Irfan Ali, DOHospitalist Physician1306427760
  6. Sivani Aluru, MDObstetrics & Gynecology Physician1275156325

Verify Mary Marguerite Manseau 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 209031964    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. Endeavor Health Medical GroupEvanston, IL

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

Mary Marguerite Manseau among 4,892 nurse practitioner records in Illinois

Mary Marguerite Manseau, APN-CNP is one of 4,892 nurse practitioner records with a practice address in Illinois. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 92% of them.

  • NPI issued2025 · 92% of these records are older, 2% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2024 · median 2018 among the 3,389 with a school on file
  • Record last updated2025 · 36% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

122 nurse practitioner records list a practice address in Naperville

They are 122 of the 4,634 NPPES records with a practice address in Naperville, and 4,892 nurse practitioner records in Illinois.

All 4,892 in Illinois → Every provider in Naperville → Nurse Practitioner nationwide →

The 8 nurse practitioner records with the nearest ZIP codes

  1. Rosemarie Batiste, APN-CNPNaperville, IL 605401245434851
  2. Kathi Corral, ARNPNaperville, IL 605401891943007
  3. Caren Corrigan, APRNNaperville, IL 605401225365794
  4. Sandra Davis, APN-CNPNaperville, IL 605401982762720
  5. Mary Digate, APNNaperville, IL 605401356352512
  6. Lauren Fleps, APN, ANP-BCNaperville, IL 605401720210107
  7. Elizabeth Gall, APN-CNPNaperville, IL 605401689761017
  8. Christine Hopkins, APN-CNPNaperville, IL 605401144481946

Common questions

What is Mary Marguerite Manseau, APN-CNP's NPI number?

Mary Marguerite Manseau, APN-CNP's National Provider Identifier (NPI) is 1952110595, issued on Jan 7, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Mary Marguerite Manseau, APN-CNP located?

The NPPES record lists a practice address at 801 S Washington St, Naperville, IL, 60540. Phone: (630) 527-3000. Providers update this record themselves, so call before visiting.

How can I verify Mary Marguerite Manseau, APN-CNP's license?

NPPES lists Illinois license number 209031964, 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.