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Otolaryngology

Michael Knowland, MD

Works at hospitals in Phoenix, AZ · Arizona

Summary

Michael Knowland, MD (Otolaryngology) is listed by Medicare at 1 hospital in Phoenix, AZ. NPI 1477574887. 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 Michael Knowland, 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
52Years since medical school (graduated 1974)
MaleGender (as listed)
Banner - University Physician Specialists LLCGroup practice

Quick answers

Which hospitals does Michael Knowland work at?
Medicare's official clinician data lists Michael Knowland at 1 hospital: Banner - University Medical Center Phoenix. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Michael Knowland see patients?
Medicare's clinician data lists 1 practice location in Phoenix, AZ. Call before your visit to confirm the address.
What is Michael Knowland's specialty?
Medicare lists Otolaryngology as the primary specialty.
Does Michael Knowland accept Medicare assignment?
Yes. Medicare's clinician data says Michael Knowland 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 Michael Knowland?
(602) 839-2000, as listed in official Medicare / NPI Registry data.
What is Michael Knowland's NPI number?
1477574887. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Michael Knowland works

Medicare's Facility Affiliation Data lists Michael Knowland 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 Michael Knowland is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Michael Knowland as a member of this group (CMS data updated 2026-10-02).

  • Banner - University Physician Specialists LLC348 clinicians in the group

Specialties

Find other Otolaryngology doctors in Arizona →

Other ENT doctors in Phoenix

Clinicians with the same Medicare primary specialty in Phoenix, AZ — not a recommendation.

All ENT doctors in Phoenix →

Clinician information

CredentialMD
Graduation year1974
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1477574887
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