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

Karen Matulonis Williams, CRNP

Individual provider Family Nurse Practitioner · NPI 1457303141

Karen Matulonis Williams, CRNP is a Nurse Practitioner in Allentown, Pennsylvania. Qualified in 1986, 40 years ago. Practices with Valley Kidney Specialists, PC, a 31-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
40
Licensed in
PA
In the registry since
2006
Specialties on file
2
What do these letters mean?
CRNP — Certified Registered Nurse Practitioner
The title Pennsylvania and some other states use for a nurse practitioner.

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Practice location Address checks out

1230 S Cedar Crest Blvd Stes 301 302 304
Allentown, PA 18103-6212
Phone: (610) 432-4529
Fax: (610) 432-2206
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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 VP006049B (PA)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence VP006049B (PA)

Record details

NPI number1457303141
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNP
Sole proprietorNo
NPI enumeratedMay 17, 2006
Last updated in NPPESJune 2, 2022
Certification dateJune 2, 2022

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1986 (40 years in practice)
Group practice Valley Kidney Specialists, P.C. — 31 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Allentown