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

Mr. Nathan Allen Williamson, APRN, NP-C

Individual provider Family Nurse Practitioner · NPI 1306393061

Mr. Nathan Allen Williamson, APRN, NP-C is a Nurse Practitioner in Fort Smith, Arkansas. Qualified in 2016, 10 years ago. Practices with Mercy Clinic Fort Smith Communities, a 350-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Arkansas.

Years since qualifying
10
Licensed in
AR
In the registry since
2016
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
NP-C — Nurse Practitioner, Certified
A nurse practitioner certified by the AANP.

See every abbreviation used in this directory →

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Practice location Address checks out

3700 Cliff Dr
Fort Smith, AR 72903-5954
Phone: (479) 259-9286
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

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence A004897 (AR)

Record details

NPI number1306393061
Entity typeIndividual (Type 1)
GenderMale
Credentials APRN , NP-C
Sole proprietorNo
NPI enumeratedSeptember 9, 2016
Last updated in NPPESOctober 30, 2019

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Mercy Clinic Fort Smith Communities — 350 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 patients330
Services billed 1,405 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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $3,292 205 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Mercy Clinic Fort Smith Communities

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 350 clinicians in the practice; 12 are shown here.

Other providers in Fort Smith