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Otolaryngology

Lyle B. Stillwater, MD

Works at hospitals in Visalia, CA · California

Summary

Dr. Lyle B. Stillwater, MD is an ENT doctor at 812 W Main St, Visalia, CA 93291. Phone: (559) 732-5587. Accepts Medicare assignment. In 2024, Lyle B. Stillwater had 144 Original Medicare patients and 657 services. NPI 1154339182. 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.

  • Specialty: ENT doctor (Medicare lists Otolaryngology)
  • Address: 812 W Main St, Visalia, CA 93291 · Directions
  • Phone: (559) 732‑5587
  • Medicare: Accepts Medicare assignment
  • Hospital: Kaweah Health Medical Center
  • Medical school: graduated 1975 (51 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Lyle B. Stillwater, 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 Lyle B. Stillwater accept Medicare assignment?
Yes. Medicare's clinician data says Lyle B. Stillwater 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 Lyle B. Stillwater see?
In 2024, CMS data shows 144 Original Medicare patients and 657 services for Lyle B. Stillwater. This counts Original Medicare only and measures volume, not quality.
What is Lyle B. Stillwater's NPI number?
1154339182. 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 Lyle B. Stillwater, 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 patients144
Services billed to Medicare657
Different services or procedures19
Participating Medicare providerYes
Average age of these patients77

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)204 services
  2. Removal of impacted ear wax (69210)152 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)75 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)50 services
  5. Comprehensive hearing and speech recognition test (92557)35 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%
  • Arthritis38%
  • Ischemic heart disease35%
  • Diabetes26%
  • Chronic kidney disease25%

Hospitals where Lyle B. Stillwater works

Medicare's Facility Affiliation Data lists Lyle B. Stillwater 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.

  • Kaweah Health Medical CenterVisalia, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050057

Practice locations

Addresses where Lyle B. Stillwater is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Otolaryngology doctors in California →

Other ENT doctors in California

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

All ENT doctors in California →

Clinician information

CredentialMD
Graduation year1975 (51 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1154339182
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