THE HEART RHYTHM INSTITUTE OF ARIZONA
NPI 1588109573
Internal Medicine - Clinical Cardiac Electrophysiology in Phoenix, AZ

Q: What is Executive Cardiac Arrhythmia Solutions, Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Clinical Cardiac Electrophysiology, with taxonomy code 207RC0001X.

Active since December 29, 2016

4550 E BELL RD STE 130, PHOENIX, AZ 85032(480) 634-4449(480) 304-3525 Get Directions Write a Review

NPPES record last updated: May 20, 2022. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: May 20, 2022, Feb 23, 2017, Dec 29, 2016 (3 updates tracked since 2016).

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About The Heart Rhythm Institute Of Arizona NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

THE HEART RHYTHM INSTITUTE OF ARIZONA (NPI 1588109573) is a healthcare organization registered as a clinical cardiac electrophysiology in Phoenix, Arizona and active in the NPI registry since December 2016. The organization lists John F Beshai, President, as its authorized official.

NPPES Registry Identity

NPI1588109573

Entity TypeOrganization

Primary Taxonomy207RC0001X

Legal Business NameEXECUTIVE CARDIAC ARRHYTHMIA SOLUTIONS, INC

Location Address4550 E BELL RD STE 130Phoenix, AZ 85032-9306

Mailing Address4550 E Bell Rd Ste 130Phoenix, AZ 85032-9306 · (480) 634-4449 · Fax (480) 304-3525

Phone(480) 634-4449

Fax(480) 304-3525

Organization SubpartNo

Authorized OfficialJohn F BeshaiPresident · (480) 634-4449

Enumeration DateDecember 29, 2016

Last NPPES UpdateMay 20, 20223 updates tracked since enumeration

NPPES CertifiedMay 20, 2022

✔ NPI 1588109573 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Clinical Cardiac ElectrophysiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RC0001X

License✔ Licensed in AZ · 48351

Definition

A field of special interest within the subspecialty of cardiovascular disease, specialty of Internal Medicine, which involves intricate technical procedures to evaluate heart rhythms and determine appropriate treatment for them.

4550 E BELL RD STE 130, Phoenix, AZ 85032

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Other Names 1

Doing Business AsThe Heart Rhythm Institute Of Arizona

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

The Heart Rhythm Institute Of Arizona is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to The Heart Rhythm Institute Of Arizona, which bills Medicare for the services this clinician delivers.

Clinician (1)

John Beshai, MD

Cardiac Electrophysiology

NPI 1952345274

4550 E BELL RD STE 130
Phoenix, AZ 85032

(480) 634-4449

✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Executive Cardiac Arrhythmia Solutions, Inc's NPI number?

The NPI number for Executive Cardiac Arrhythmia Solutions, Inc is 1588109573. It was assigned to this organization in the NPPES registry on December 29, 2016. The provider is doing business as The Heart Rhythm Institute Of Arizona.

Where is Executive Cardiac Arrhythmia Solutions, Inc located?

Executive Cardiac Arrhythmia Solutions, Inc is located at 4550 E Bell Rd Ste 130, Phoenix, AZ 85032. The listed phone number is (480) 634-4449.

What is Executive Cardiac Arrhythmia Solutions, Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Clinical Cardiac Electrophysiology, with taxonomy code 207RC0001X.

Is Executive Cardiac Arrhythmia Solutions, Inc enrolled in Medicare?

Yes. Executive Cardiac Arrhythmia Solutions, Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Executive Cardiac Arrhythmia Solutions, Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Cardiac Electrophysiology) reassigns their Medicare billing to Executive Cardiac Arrhythmia Solutions, Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Executive Cardiac Arrhythmia Solutions, Inc was last updated on May 20, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.