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

Cardiovascular Disease (Cardiology)

Nikolaos Tsiouris, MD

Works at hospitals in Las Vegas, NV · Nevada

Summary

Nikolaos Tsiouris, MD (Cardiovascular Disease (Cardiology)) is listed by Medicare at 5 hospitals in Las Vegas, NV. NPI 1790789428. 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 Nikolaos Tsiouris, 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

Cardiovascular Disease (Cardiology)Primary specialty
YesAccepts Medicare assignment
31Years since medical school (graduated 1995)
MaleGender (as listed)
Heart Center of NevadaGroup practice

Quick answers

Which hospitals does Nikolaos Tsiouris work at?
Medicare's official clinician data lists Nikolaos Tsiouris at 5 hospitals: Mountainview Hospital, Southern Hills Hospital and Medical Center, Spring Valley Hospital Medical Center, Sunrise Hospital and Medical Center and Valley Hospital Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Nikolaos Tsiouris see patients?
Medicare's clinician data lists 2 practice locations, including Las Vegas, NV. Call before your visit to confirm the address.
What is Nikolaos Tsiouris's specialty?
Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
Does Nikolaos Tsiouris accept Medicare assignment?
Yes. Medicare's clinician data says Nikolaos Tsiouris 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 Nikolaos Tsiouris?
(702) 260-0022, as listed in official Medicare / NPI Registry data.
What is Nikolaos Tsiouris's NPI number?
1790789428. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Nikolaos Tsiouris works

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

Group practices

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

  • Heart Center of Nevada17 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Nevada →

Other cardiologists in Las Vegas

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

All cardiologists in Las Vegas →

Clinician information

CredentialMD
Graduation year1995
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1790789428
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