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Ahi Cardiovascular Surgeons Ltd

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Phoenix, AZ · enumerated 2008 · authorized official Edward Diethrich, Medical Director.

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

National Provider Identifier

1144482886

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Registry record

Entity type Organization (Type 2)
Legal business name Ahi Cardiovascular Surgeons Ltd
Parent organization Arizona Heart Institute Ltd
Practice address 2632 N 20th St, Phoenix, AZ, 85006
Phone (602) 266-2200
Fax (602) 240-6177
Enumeration date Jun 25, 2008
Last updated in NPPES Jun 21, 2018

Taxonomy & classification

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians Secondary
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
2085R0204X Vascular & Interventional Radiology 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 Primary
332B00000X Durable Medical Equipment & Medical Supplies Suppliers 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

Authorized official

Name Edward Diethrich
Title 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.

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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 Ahi Cardiovascular Surgeons Ltd?
Ahi Cardiovascular Surgeons Ltd is registered in NPPES as a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-06-21.