Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Otolaryngology

Clyde C. Mathison Ii, MD

Works at hospitals in Powell, TN · Tennessee

Summary

Clyde C. Mathison Ii, MD (Otolaryngology) is listed by Medicare at 1 hospital in Powell, TN. NPI 1154505428. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Clyde C. Mathison Ii, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

OtolaryngologyPrimary specialty
YesAccepts Medicare assignment
21Years since medical school (graduated 2005)
Tulane University School Of MedicineMedical school
MaleGender (as listed)
Otolaryngology Head and Neck Surgery AssociatesGroup practice

Quick answers

Which hospitals does Clyde C. Mathison Ii work at?
Medicare's official clinician data lists Clyde C. Mathison Ii at 1 hospital: Physicians Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Clyde C. Mathison Ii see patients?
Medicare's clinician data lists 3 practice locations, including Knoxville, TN and Sevierville, TN. Call before your visit to confirm the address.
What is Clyde C. Mathison Ii's specialty?
Medicare lists Otolaryngology as the primary specialty.
Does Clyde C. Mathison Ii accept Medicare assignment?
Yes. Medicare's clinician data says Clyde C. Mathison Ii accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Clyde C. Mathison Ii?
(865) 777-1727, as listed in official Medicare / NPI Registry data.
What is Clyde C. Mathison Ii's NPI number?
1154505428. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Clyde C. Mathison Ii works

Medicare's Facility Affiliation Data lists Clyde C. Mathison Ii at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Clyde C. Mathison Ii is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Clyde C. Mathison Ii as a member of this group (CMS data updated 2026-10-02).

  • Otolaryngology Head and Neck Surgery Associates16 clinicians in the group

Specialties

Find other Otolaryngology doctors in Tennessee →

Other ENT doctors in Knoxville

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

All ENT doctors in Knoxville →

Clinician information

CredentialMD
Medical schoolTulane University School Of Medicine
Graduation year2005
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1154505428
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians