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Hematology/Oncology

Michael Lyster, MD

Works at hospitals in Knoxville, TN · Lake Havasu City, AZ · Billings, MT … · Tennessee, Arizona, Montana

Summary

Michael Lyster, MD (Hematology/Oncology) is listed by Medicare at 5 hospitals in Knoxville, TN, Lake Havasu City, AZ and Billings, MT and other places. NPI 1114916350. 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 Lyster, 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

Hematology/OncologyPrimary specialty
YesAccepts Medicare assignment
39Years since medical school (graduated 1987)
MaleGender (as listed)
Thompson Oncology GroupGroup practice (+2 more)

Quick answers

Which hospitals does Michael Lyster work at?
Medicare's official clinician data lists Michael Lyster at 5 hospitals: Fort Sanders Regional Medical Center, Havasu Regional Medical Center, Intermountain Health St Vincent Regional Hospital, Leconte Medical Center and Yuma Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Michael Lyster see patients?
Medicare's clinician data lists 3 practice locations, including Lake Havasu City, AZ, Billings, MT and Knoxville, TN. Call before your visit to confirm the address.
What is Michael Lyster's specialty?
Medicare lists Hematology/Oncology as the primary specialty.
Does Michael Lyster accept Medicare assignment?
Yes. Medicare's clinician data says Michael Lyster 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 Lyster?
(928) 453-3761, as listed in official Medicare / NPI Registry data.
What is Michael Lyster's NPI number?
1114916350. 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 Lyster works

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

Group practices

Medicare enrollment lists Michael Lyster as a member of these groups (CMS data updated 2026-10-02).

  • Thompson Oncology Group65 clinicians in the group
  • SCL Health Montana38 clinicians in the group
  • HRMC, LLC34 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in Arizona →

Other hematologist-oncologists in Lake Havasu City

Clinicians with the same Medicare primary specialty in Lake Havasu City, AZ — not a recommendation.

All hematologist-oncologists in Lake Havasu City →

Clinician information

CredentialMD
Graduation year1987
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1114916350
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