Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Ammar Siddiqi

Orthodontics and Dentofacial Orthopedics Dentistry in Newport Beach, CA · enumerated 2014.

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

National Provider Identifier

1538578984

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Registry record

Entity type Individual (Type 1)

Name Dr. Ammar Siddiqi

Sex Male

Practice address Newport Beach, CA, 92660

Phone (949) 767-2700

Enumeration date Aug 11, 2014

Last updated in NPPES May 24, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

122300000X Dentist Dental Providers · License 6556 (NV) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License DDS101217 (CA) Primary

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 the NPI number for Ammar Siddiqi?

The National Provider Identifier (NPI) for Ammar Siddiqi is 1538578984, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ammar Siddiqi practice?

The practice location on file with NPPES is in Newport Beach, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-24.