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

Andrew Mackay Williamson

Individual provider Physician Assistant · NPI 1073104493

Andrew Mackay Williamson is a Physician Assistant in Lenexa, Kansas. Graduated from University of Missouri, Kansas City, School of Medicine in 2022, 4 years ago. Practices with Kansas University Physicians Inc, a 1,819-clinician group and accepts Medicare assignment. Licensed in Kansas.

Years since qualifying
4
Trained at
University of Missouri, Kansas City, School of Medicine
Licensed in
KS
In the registry since
2021
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Practice location Address checks out

23401 Prairie Star Pkwy Ste B-300
Lenexa, KS 66227-7268
Phone: (913) 677-6319
Fax: (913) 677-1540
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 2022029337 (KS)

Record details

NPI number1073104493
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedJanuary 28, 2021
Last updated in NPPESSeptember 4, 2023
Certification dateSeptember 3, 2023

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolUNIVERSITY OF MISSOURI, KANSAS CITY, SCHOOL OF MEDICINE
Graduated 2022 (4 years in practice)
Group practice Kansas University Physicians Inc — 1819 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations9 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 patients80
Services billed 88 a service is one billed item, such as a visit, a test or a procedure
Average patient age66

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 Kansas University Physicians Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1819 clinicians in the practice; 12 are shown here.

Other providers in Lenexa