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Otolaryngology

Charles R. Buck Ii, DO

Works at hospitals in Temple, TX · Waco, TX · Texas

Summary

Dr. Charles R. Buck Ii, DO is an ENT doctor at 100 Hillcrest Med Blvde, Waco, TX 76712. Phone: (254) 202-2000. Accepts Medicare assignment. In 2024, Charles R. Buck Ii had 444 Original Medicare patients and 1,121 services. NPI 1396035630. 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 Charles R. Buck Ii, 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 Charles R. Buck Ii accept Medicare assignment?
Yes. Medicare's clinician data says Charles R. Buck Ii 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 Charles R. Buck Ii see?
In 2024, CMS data shows 444 Original Medicare patients and 1,121 services for Charles R. Buck Ii. This counts Original Medicare only and measures volume, not quality.
What is Charles R. Buck Ii's NPI number?
1396035630. 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 Charles R. Buck Ii, 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 patients444
Services billed to Medicare1,121
Different services or procedures63
Participating Medicare providerYes
Average age of these patients75

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)271 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)155 services
  3. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)151 services
  4. Diagnostic exam of nasal passages using an endoscope (31231)110 services
  5. Diagnostic exam of voice box using a flexible endoscope (31575)90 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%
  • Arthritis48%
  • Diabetes28%
  • Ischemic heart disease28%
  • Anxiety26%

Hospitals where Charles R. Buck Ii works

Medicare's Facility Affiliation Data lists Charles R. Buck Ii 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 Charles R. Buck Ii is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Charles R. Buck Ii as a member of this group (CMS data updated October 2, 2026).

  • Hillcrest Physician Services115 clinicians in the group

Specialties

Find other Otolaryngology doctors in Texas →

Other ENT doctors in Texas

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

All ENT doctors in Texas →

Other clinicians in Hillcrest Physician Services

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

Clinician information

CredentialDO
Graduation year2011 (15 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1396035630
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