Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Advanced Ear Nose and Throat Associates PC

Q: What is the NPI number for Advanced Ear Nose and Throat Associates PC?

The NPI for Advanced Ear Nose and Throat Associates PC is 1235120411, a Type 2 (organization) record in the CMS NPPES registry.

Otolaryngology Physician in Phoenix, AZ · enumerated 2005 · authorized official Ben Leff, Owner.

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

National Provider Identifier

1235120411

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Registry record

Entity type Organization (Type 2)

Legal business name Advanced Ear Nose and Throat Associates PC

Practice address 9250 N 3rd St Ste 2025, Phoenix, AZ, 85020

Phone (602) 944-3311

Fax (602) 944-1968

Enumeration date Nov 4, 2005

Last updated in NPPES May 3, 2021

Taxonomy & classification

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Ben Leff

Title Owner

Phone (602) 944-3311

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

Who is the authorized official for Advanced Ear Nose and Throat Associates PC?

NPPES lists Ben Leff (Owner) as the authorized official for this organization.

What is the NPI number for Advanced Ear Nose and Throat Associates PC?

The NPI for Advanced Ear Nose and Throat Associates PC is 1235120411, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-03.