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General Surgery

Keary R. Williams Jr., MD

Works at hospitals in Lenoir City, TN · Knoxville, TN · Oak Ridge, TN · Tennessee

Summary

Dr. Keary R. Williams Jr., MD is a general surgeon at 6408 Papermill Dr, Knoxville, TN 37919. Phone: (865) 588-8229. Accepts Medicare assignment. In 2024, Keary R. Williams Jr. had 80 Original Medicare patients and 148 services. NPI 1912958059. 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 Keary R. Williams Jr., 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 Keary R. Williams Jr. accept Medicare assignment?
Yes. Medicare's clinician data says Keary R. Williams Jr. 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 Keary R. Williams Jr. see?
In 2024, CMS data shows 80 Original Medicare patients and 148 services for Keary R. Williams Jr.. This counts Original Medicare only and measures volume, not quality.
What is Keary R. Williams Jr.'s NPI number?
1912958059. 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 Keary R. Williams Jr., 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 patients80
Services billed to Medicare148
Different services or procedures33
Participating Medicare providerYes
Average age of these patients67

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)23 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)22 services
  3. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)21 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 cholesterol74%
  • Arthritis66%
  • Depression48%
  • Diabetes45%
  • Anxiety43%

Hospitals where Keary R. Williams Jr. works

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

Group practices

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

  • Premier Surgical Associates PLLC59 clinicians in the group

Specialties

Find other General Surgery doctors in Tennessee →

Other general surgeons in Knoxville

Clinicians with the same Medicare primary specialty in Knoxville, TN — not a recommendation.

All general surgeons in Knoxville →

Other clinicians in Premier Surgical Associates PLLC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Virginia School Of Medicine
Graduation year2000 (26 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1912958059
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