Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mary J Kluever, FNP-BC

Individual provider Nurse Practitioner · NPI 1598154247

Mary J Kluever, FNP-BC is a Nurse Practitioner in St Charles, Illinois. Qualified in 2014, 12 years ago. Practices with Osf Multi-Specialty Group, a 2,128-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
12
Licensed in
IL
In the registry since
2015
Specialties on file
2
What do these letters mean?
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.

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Practice location Address checks out

2900 Foxfield Rd Ste 100
St Charles, IL 60174-5799
Phone: (630) 938-6000
Fax: (630) 377-6577
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 277001125 (IL)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 209012379 (IL)

Record details

NPI number1598154247
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP-BC
Sole proprietorNo
NPI enumeratedJanuary 19, 2015
Last updated in NPPESSeptember 23, 2026
Certification dateSeptember 23, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Osf Multi-Specialty Group — 2128 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients89
Services billed 153 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Osf Multi-Specialty Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2128 clinicians in the practice; 12 are shown here.

Other providers in St Charles