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Arizona Heart Institute Ltd

Q: What type of organization is Arizona Heart Institute Ltd?

Arizona Heart Institute Ltd is registered in NPPES as a Cardiovascular Disease Physician (its primary provider taxonomy).

Cardiovascular Disease Physician in Phoenix, AZ · enumerated 2006 · authorized official Edward Diethrich, President/Medical Director.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1114999604

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Registry record

Entity type Organization (Type 2)

Legal business name Arizona Heart Institute Ltd

Practice address 2632 N 20th St, Phoenix, AZ, 85006

Phone (602) 266-2200

Fax (602) 240-6177

Enumeration date Feb 7, 2006

Last updated in NPPES Feb 18, 2010

Taxonomy & classification

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians Secondary

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians Secondary

2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians Secondary

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Secondary

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Secondary

207RC0001X Clinical Cardiac Electrophysiology Physician Allopathic & Osteopathic Physicians Secondary

332B00000X Durable Medical Equipment & Medical Supplies Suppliers Secondary

2085R0204X Vascular & Interventional Radiology Physician Allopathic & Osteopathic Physicians Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Edward Diethrich

Title President/Medical Director

Phone (602) 266-2200

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Arizona Heart Institute Ltd?

Arizona Heart Institute Ltd is registered in NPPES as a Cardiovascular Disease Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-02-18.