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Radiation Oncology

Kathleen M. Shadle, MD

Works at hospitals in Sugar Land, TX · The Woodlands, TX · Houston, TX · Texas

Summary

Dr. Kathleen M. Shadle, MD is a radiation oncologist at 1130 Earle St, Methodist Radiation Oncology Group, Houston, TX 77030. Phone: (713) 790-2637. Accepts Medicare assignment. In 2024, Kathleen M. Shadle had 234 Original Medicare patients and 1,988 services. NPI 1881686343. 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 Kathleen M. Shadle, 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 Kathleen M. Shadle accept Medicare assignment?
Yes. Medicare's clinician data says Kathleen M. Shadle 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 Kathleen M. Shadle see?
In 2024, CMS data shows 234 Original Medicare patients and 1,988 services for Kathleen M. Shadle. This counts Original Medicare only and measures volume, not quality.
What is Kathleen M. Shadle's NPI number?
1881686343. 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 Kathleen M. Shadle, 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 patients234
Services billed to Medicare1,988
Different services or procedures28
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Ct guidance for insertion of radiation therapy fields (77014)642 services
  2. Intra-fraction localization and tracking of target or patient motion during delivery of radiation therapy (eg,3d positional tracking, gating, 3d surface tracking), each fraction of treatment (G6017)318 services
  3. Radiation treatment management, 5 treatment sessions (77427)176 services
  4. Calculation of radiation therapy dose (77300)164 services
  5. Design and construction of complex radiation treatment device (77334)137 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%
  • Arthritis47%
  • Ischemic heart disease46%
  • Diabetes35%

Hospitals where Kathleen M. Shadle works

Medicare's Facility Affiliation Data lists Kathleen M. Shadle 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 Kathleen M. Shadle is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 9; the Medicare profile lists all.

  • 1130 Earle St, Methodist Radiation Oncology GroupHouston, TX 77030 (713) 790‑2637
  • 16605 Southwest FwySugar Land, TX 77479 (281) 275‑0800
  • 16605 Southwest Fwy 400 Mob3, Methodist Family Medicine GroupSugar Land, TX 77479 (281) 275‑0800
  • 16605 SW Fwy 410, Methodist Diag Card of HoustonSugar Land, TX 77479 (281) 274‑0148
  • 16655 Southwest FwySugar Land, TX 77479

Group practices

Medicare enrollment lists Kathleen M. Shadle as a member of these groups (CMS data updated October 2, 2026).

  • TMH Physician Associates PLLC1,690 clinicians in the group
  • Houston Methodist Specialty Physicians1,528 clinicians in the group

Specialties

Find other Radiation Oncology doctors in Texas →

Other radiation oncologists in Houston

Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.

All radiation oncologists in Houston →

Other clinicians in TMH Physician Associates PLLC

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

Clinician information

CredentialMD
Graduation year1988 (38 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1881686343
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