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

Dena L Williams, MSN, APRN, FNP-BC

Individual provider Family Nurse Practitioner · NPI 1417648825

Dena L Williams, MSN, APRN, FNP-BC is a Nurse Practitioner in Alton, Illinois. Qualified in 2023, 3 years ago. Practices with Institute for Research and Education in Family Medicine, a 9-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
3
Licensed in
IL
In the registry since
2023
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.

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Practice location Address checks out

1 Professional Dr Ste 120
Alton, IL 62002-5068
Phone: (618) 463-8555
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 209.027455 (IL)

Record details

NPI number1417648825
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , APRN , FNP-BC
Sole proprietorNo
NPI enumeratedMay 17, 2023
Last updated in NPPESMay 23, 2023
Certification dateMay 23, 2023

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Group practice Institute For Research And Education In Family Medicine — 9 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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