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

Mark S. Thomas, MD

Individual provider Family Medicine Physician · NPI 1699755942

Mark S. Thomas, MD is registered under Family Practice in Fayetteville, Arkansas. Graduated from University of Massachusetts Medical School in 1989, 37 years ago. Practices with Washington Regional Medical System, a 240-clinician group and accepts Medicare assignment. Licensed in Arkansas.

Years since qualifying
37
Trained at
University of Massachusetts Medical School
Licensed in
AR
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3215 N Northhills Blvd
Fayetteville, AR 72703-4424
Phone: (479) 463-7102
Fax: (479) 463-7864
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospice and Palliative Medicine (Family Medicine) Physician (primary) Taxonomy 207QH0002X · Licence E-0779 (AR)
Family Medicine Physician Taxonomy 207Q00000X · Licence E-0779 (AR)
Pediatric Hospice and Palliative Medicine Physician Taxonomy 2080H0002X · Licence E-0779 (AR)

Record details

NPI number1699755942
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 20, 2006
Last updated in NPPESSeptember 7, 2017

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 1989 (37 years in practice)
Group practice Washington Regional Medical System — 240 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 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 patients61
Services billed 99 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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 Washington Regional Medical System

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 240 clinicians in the practice; 12 are shown here.

Other providers in Fayetteville