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

MS. Judith Lynn Williamson, RN, APRN-BC, FNP

Individual provider Nurse Practitioner · NPI 1922299742

MS. Judith Lynn Williamson, RN, APRN-BC, FNP is a Nurse Practitioner in Peoria, Illinois. Qualified in 1998, 28 years ago. Practices with Oncology-Hematology Associates of Central Illinois P C, a 64-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
28
Licensed in
IL
In the registry since
2007
Specialties on file
2
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

See every abbreviation used in this directory →

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Practice location Address checks out

8940 N Wood Sage Rd
Peoria, IL 61615-7822
Phone: (309) 243-3000
Fax: (309) 243-3044
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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 209006790 (IL)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 309-001477 (IL)

Record details

NPI number1922299742
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , APRN-BC , FNP
Sole proprietorYes
NPI enumeratedAugust 6, 2007
Last updated in NPPESMarch 2, 2026
Certification dateMarch 2, 2026

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice Oncology-Hematology Associates Of Central Illinois P C — 64 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients147
Services billed 467 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.

Colleagues at Oncology-Hematology Associates of Central Illinois P C

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 64 clinicians in the practice; 12 are shown here.

Other providers in Peoria