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Radiation Oncology

Lewis G. Smith Iii, MD

Works at hospitals in Tyler, TX · Texas

Summary

Dr. Lewis G. Smith Iii, MD is a radiation oncologist at 11937 US Hwy 271, Tyler, TX 75708. Phone: (903) 877-7200. Accepts Medicare assignment. In 2024, Lewis G. Smith Iii had 97 Original Medicare patients and 1,349 services. NPI 1144380684. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Lewis G. Smith Iii, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Lewis G. Smith Iii accept Medicare assignment?
Yes. Medicare's clinician data says Lewis G. Smith Iii accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Lewis G. Smith Iii see?
In 2024, CMS data shows 97 Original Medicare patients and 1,349 services for Lewis G. Smith Iii. This counts Original Medicare only and measures volume, not quality.
What is Lewis G. Smith Iii's NPI number?
1144380684. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Lewis G. Smith Iii, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients97
Services billed to Medicare1,349
Different services or procedures23
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Ct guidance for insertion of radiation therapy fields (77014)417 services
  2. Radiation treatment management, 5 treatment sessions (77427)132 services
  3. Design and construction of complex radiation treatment device (77334)129 services
  4. Calculation of radiation therapy dose (77300)116 services
  5. Complex radiation therapy planning (77263)53 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
  • Arthritis52%
  • COPD42%
  • Ischemic heart disease35%

Hospitals where Lewis G. Smith Iii works

Medicare's Facility Affiliation Data lists Lewis G. Smith Iii at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Lewis G. Smith Iii is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Lewis G. Smith Iii as a member of this group (CMS data updated October 2, 2026).

  • University of Texas Health Science Center at Tyler-Facilty-Physician122 clinicians in the group

Specialties

Find other Radiation Oncology doctors in Texas →

Other radiation oncologists in Texas

Clinicians with the same Medicare primary specialty in Texas — not a recommendation.

All radiation oncologists in Texas →

Other clinicians in University of Texas Health Science Center at Tyler-Facilty-Physician

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolColumbia University College Of Physicians And Surgeons
Graduation year1993 (33 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1144380684
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians