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Urology

Ronald M. Williams, MD

Works at hospitals in Austin, TX · Denison, TX · Texas

Summary

Dr. Ronald M. Williams, MD is a urologist at 5012 S US Hwy 75, Suite 275, Denison, TX 75020. Phone: (903) 416-6550. Accepts Medicare assignment. In 2024, Ronald M. Williams had 406 Original Medicare patients and 1,406 services. NPI 1740303742. 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 Ronald M. Williams, 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 Ronald M. Williams accept Medicare assignment?
Yes. Medicare's clinician data says Ronald M. Williams 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 Ronald M. Williams see?
In 2024, CMS data shows 406 Original Medicare patients and 1,406 services for Ronald M. Williams. This counts Original Medicare only and measures volume, not quality.
What is Ronald M. Williams's NPI number?
1740303742. 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 Ronald M. Williams, 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 patients406
Services billed to Medicare1,406
Different services or procedures46
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Urinalysis, manual test (81002)340 services
  2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)288 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)285 services
  4. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)84 services
  5. Insertion of needle into vein for collection of blood sample (36415)69 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%
  • Arthritis53%
  • Ischemic heart disease45%
  • Diabetes32%
  • COPD30%

Hospitals where Ronald M. Williams works

Medicare's Facility Affiliation Data lists Ronald M. Williams 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 Ronald M. Williams is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ronald M. Williams as a member of this group (CMS data updated October 2, 2026).

  • Texomacare Specialty Physicians38 clinicians in the group

Specialties

Find other Urology doctors in Texas →

Other urologists in Texas

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

All urologists in Texas →

Other clinicians in Texomacare Specialty Physicians

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

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Southwestern Medical School At Dallas
Graduation year1997 (29 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1740303742
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