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Internal Medicine

John A. Garrison, DO

Works at hospitals in Henderson, NV · North las Vegas, NV · Las Vegas, NV · Nevada

Summary

John A. Garrison, DO (Internal Medicine) is listed by Medicare at 4 hospitals in Henderson, NV, North las Vegas, NV and Las Vegas, NV. NPI 1902284870. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about John A. Garrison, 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

Internal MedicinePrimary specialty
May acceptAccepts Medicare assignment
YesOffers telehealth
11Years since medical school (graduated 2015)
MaleGender (as listed)

Quick answers

Which hospitals does John A. Garrison work at?
Medicare's official clinician data lists John A. Garrison at 4 hospitals: Henderson Hospital, North Vista Hospital, Valley Hospital Medical Center and West Henderson Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John A. Garrison see patients?
Medicare's clinician data lists 8 practice locations, including Las Vegas, NV and Henderson, NV. Call before your visit to confirm the address.
What is John A. Garrison's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does John A. Garrison accept Medicare assignment?
Medicare's clinician data says John A. Garrison may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
Does John A. Garrison offer telehealth?
Medicare's clinician data says John A. Garrison offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for John A. Garrison?
(702) 515-6200, as listed in official Medicare / NPI Registry data.
What is John A. Garrison's NPI number?
1902284870. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John A. Garrison works

Medicare's Facility Affiliation Data lists John A. Garrison 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 John A. Garrison is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.

Group practices

Medicare enrollment lists John A. Garrison as a member of these groups (CMS data updated 2026-10-02).

  • NV Pacs 2 LLC122 clinicians in the group
  • Nevada Acute Medical Services-Scherr 1 PC73 clinicians in the group
  • Nevada Post-Acute Medical Services-Scherr 1 P.C18 clinicians in the group
  • CS Pacs 3 West LLC12 clinicians in the group
  • Garrison Medical Consultants PLLC2 clinicians in the group
  • Mana Medical Shlifer2 clinicians in the group

Specialties

Find other Internal Medicine doctors in Nevada →

Other internal medicine doctors in Las Vegas

Clinicians with the same Medicare primary specialty in Las Vegas, NV — not a recommendation.

All internal medicine doctors in Las Vegas →

Clinician information

CredentialDO
Graduation year2015
Gender (as listed)Male
Medicare assignmentMay accept for some services
TelehealthOffers telehealth services
NPI (National Provider Identifier)1902284870
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