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Mountainside Fitness Acquisitions, LLC

Sports Medicine (Physical Medicine & Rehabilitation) Physician in Phoenix, AZ · enumerated 2021 · authorized official Eileen Ahern, Credentialist.

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

National Provider Identifier

1639767304

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Registry record

Entity type Organization (Type 2)
Legal business name Mountainside Fitness Acquisitions, LLC
Practice address 4820 E Ray Rd, Phoenix, AZ, 85044
Phone (602) 633-2574
Enumeration date Jan 7, 2021
Last updated in NPPES Jan 7, 2021

Taxonomy & classification

2081S0010X Sports Medicine (Physical Medicine & Rehabilitation) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Eileen Ahern
Title Credentialist
Phone (800) 954-1800

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 Mountainside Fitness Acquisitions, LLC?
Mountainside Fitness Acquisitions, LLC is registered in NPPES as a Sports Medicine (Physical Medicine & Rehabilitation) Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-01-07.