Registry data as of Aug 27, 2026

Jennifer Hemmer, FNP-C

Nurse Practitioner · Saint Charles, IL

Jennifer Hemmer, FNP-C is a nurse practitioner with a practice address in Saint Charles, Illinois, and NPI 1528680360, issued on May 14, 2020. Check the license (Illinois 277.004005, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1528680360
Name
Jennifer Hemmer
Credential
FNP-C
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
277.004005 IL
14759 WI
Self-reported in NPPES; status is on the state search
Practice location
923 S Randall RD, Saint Charles, IL 60174
Phone
(630) 517-5788
Enumerated
May 14, 2020
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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Also registered at 923 S Randall RD

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

  1. Alec Pawlak, DCChiropractor1699544965

Verify Jennifer Hemmer 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 277.004005
    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.

87% fewer Medicare Part D claims than the average nurse practitioner in 2024

145 Medicare Part D claims for 126 beneficiaries, against an average of 1,144 among the 50,277 providers of this specialty who prescribed in Part D.

  1. Jennifer Hemmer145
  2. Specialty average1,144

Most prescribed

  1. Amoxicillin-Clavulanate Potass30 claims
  2. Doxycycline Hyclate23 claims
  3. Amoxicillin13 claims
  4. Cephalexin13 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.

Nurse Practitioner providers in Illinois

There are 4,005 nurse practitioner records in Illinois.

Other nurse practitioner records in Illinois

  1. Janice Abadilla, FNP-BCPeoria, IL1548157175
  2. Roseviminda Abano, CNPGurnee, IL1215318555
  3. Philomena AbebePark Ridge, IL1902780174
  4. Milagros Abellera, APNChicago, IL1528076239
  5. Edwina Abloh, APN-CNPSkokie, IL1689314098
  6. Sandra Abraham, CNPDwight, IL1982883245
  7. Hazel Acacio, APNPWauconda, IL1205471679
  8. Anthony Aceto, APRN, FNP-CSchaumburg, IL1891302956
  9. Francisco Acevedo, APRN, CNPMokena, IL1467446930
  10. Ijeoma Achebe, FNPChicago, IL1013498294

Common questions

What is Jennifer Hemmer, FNP-C's NPI number?

Jennifer Hemmer, FNP-C's National Provider Identifier (NPI) is 1528680360, issued on May 14, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer Hemmer, FNP-C located?

The NPPES record lists a practice address at 923 S Randall RD, Saint Charles, IL, 60174. Phone: (630) 517-5788. Providers update this record themselves, so call before visiting.

How can I verify Jennifer Hemmer, FNP-C's license?

NPPES lists Illinois license number 277.004005, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Jennifer Hemmer, FNP-C prescribe under Medicare Part D?

In 2024, Jennifer Hemmer, FNP-C had 145 Medicare Part D claims for 126 beneficiaries; the average among nurse practitioner prescribers was 1,144. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.