Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

William S Mattox, APRN, CNP

Individual provider Registered Nurse · NPI 1720492507

William S Mattox, APRN, CNP is a Nurse Practitioner in Rockford, Illinois. Qualified in 2014, 12 years ago. Practices with Hospice of Kankakee Valley, Inc, a 4-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
12
Licensed in
IL
In the registry since
2014
Specialties on file
2
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
CNP — Certified Nurse Practitioner
A certified nurse practitioner.

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Practice location Address checks out

5666 E State St
Rockford, IL 61108-2425
Phone: (815) 395-4548
Fax: (815) 639-8501
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 482 Main St Nw, Bourbonnais, IL 60914-2331 — (815) 939-4141

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 209.011406 (IL)
Registered Nurse Taxonomy 163W00000X · Licence 041.248851 (IL)

Record details

NPI number1720492507
Entity typeIndividual (Type 1)
GenderMale
Credentials APRN , CNP
Sole proprietorNo
NPI enumeratedJune 19, 2014
Last updated in NPPESMay 9, 2024
Certification dateMay 9, 2024

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 Hospice Of Kankakee Valley, Inc. — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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