THERON SCOTT WILLIAMS M.D.
NPI 1588007488
Emergency Medicine in Little Rock, AR
About Theron Scott Williams M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THERON SCOTT WILLIAMS M.D. (NPI 1588007488) is an individual emergency medicine provider in Little Rock, Arkansas, licensed in Tennessee (60354) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, is affiliated with Regional One Health, and is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Theron Scott Williams M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
8Medicare enrollment records show Theron Williams reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Memphis, TN 38103
- Reassigned Medicare billing, Tennessee enrollment
- 421 clinicians in this Medicare group
Grenada, MS 38901
- Reassigned Medicare billing, Mississippi enrollment
- 83 clinicians in this Medicare group
Jackson, MS 39204
- Reassigned Medicare billing, Mississippi enrollment
- 99 clinicians in this Medicare group
Booneville, MS 38829
- Reassigned Medicare billing, Mississippi enrollment
- 95 clinicians in this Medicare group
Brentwood, TN 37027
- Reassigned Medicare billing, Tennessee enrollment
- 208 clinicians in this Medicare group
Cookeville, TN 38501
- Reassigned Medicare billing, Tennessee enrollment
- 78 clinicians in this Medicare group
Maryville, TN 37804
- Reassigned Medicare billing, Tennessee enrollment
- 390 clinicians in this Medicare group
Maysville, KY 41056
- Reassigned Medicare billing, Mississippi and Tennessee enrollments
- 171 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Regional One Health
Acute Care Hospitals · Memphis, TNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 72205 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LITTLE ROCK, AR 72205
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Theron Williams's NPI number?
The NPI number for Theron Williams is 1588007488. It was assigned to this individual provider in the NPPES registry on April 10, 2013.
Where is Theron Williams located?
Theron Williams practices at 4301 W. Markham St., Little Rock, AR 72205. The listed phone number is (662) 288-1431.
What is Theron Williams's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Theron Williams enrolled in Medicare?
Yes. Theron Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Theron Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Theron Williams reassigns Medicare benefits to 8 organizations: Ut Regional One Physicians Inc (Memphis, TN), Grenada Emergency Group, LLC (Grenada, MS), Jackson Hb Medical Services LLC (Jackson, MS), United Emergency Services, Inc. (Booneville, MS), Carr PLLC (Brentwood, TN) and 3 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Theron Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Theron Williams accept?
Health plans from Oscar Health Plan, Inc. and Oscar Insurance Company list Theron Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Theron Williams affiliated with any hospitals?
According to CMS data, Theron Williams is affiliated with Regional One Health.
When was this NPI record last updated?
The NPPES record for Theron Williams was last updated on January 30, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Theron Scott Williams, M.D. · NPI 1588007488
Emergency Medicine physician in Little Rock, Arkansas. Individual provider, active in the CMS NPPES registry since April 10, 2013.
## Identity
- **NPI:** 1588007488 (Entity type: Individual)
- **Enumerated:** April 10, 2013
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 60354 (Tennessee)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4301 W. MARKHAM ST., Little Rock, AR 72205
- **Phone:** (662) 288-1431
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 8 organizations under Medicare reassignment (form CMS-855R): Ut Regional One Physicians Inc (NPI 1093130585, Memphis, TN); Grenada Emergency Group, LLC (NPI 1194388082, Grenada, MS); Jackson Hb Medical Services LLC (NPI 1184305856, Jackson, MS); United Emergency Services, Inc. (NPI 1326007915, Booneville, MS); Carr PLLC (NPI 1548677610, Brentwood, TN); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** January 30, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1588007488) · Data from the CMS NPPES public registry.