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DR. WILLIAM JOHN OWSLEY M.D.
NPI 1003965039
Otolaryngology in Newport Beach, CA

Active since January 09, 2007
2011 WESTCLIFF DR, SUITE 5, NEWPORT BEACH, CA 92660(949) 645-2520(949) 645-3502 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. William John Owsley M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM JOHN OWSLEY M.D. (NPI 1003965039) is an individual otolaryngology provider in Newport Beach, California, licensed in California (C33164) and active in the NPI registry since January 2007.

NPPES Registry Identity

NPI1003965039
Entity TypeIndividualMale
Primary Taxonomy207Y00000X
Provider Legal NameDR. WILLIAM JOHN OWSLEYCredential: M.D.
Location Address2011 WESTCLIFF DR, SUITE 5Newport Beach, CA 92660-5599
Mailing Address2011 Westcliff Dr, Suite 5Newport Beach, CA 92660-5599 · (949) 645-2520 · Fax (949) 645-3502
Phone(949) 645-2520
Fax(949) 645-3502
Sole ProprietorYes
Enumeration DateJanuary 9, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1003965039 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
License✔ Licensed in CA · C33164
Definition
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.
2011 WESTCLIFF DR, Newport Beach, CA 92660
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Other Identifiers 1

Medicare UPINA35188CA

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LOULA AMIN M.D.
Allergy & Immunology
2011 WESTCLIFF DR, SUITE 7
NEWPORT BEACH, CA 92660
Orange County (949) 645-3374
CHI TRAN LAW, D.M.D., INC.
Clinic/Center (Dental)
2011 WESTCLIFF DR, SUITE 10
NEWPORT BEACH, CA 92660
Orange County (949) 646-5411
DR. MARSHALL YOUNG D.D.S.
Dentist (General Practice)
2011 WESTCLIFF DR, SUITE 12
NEWPORT BEACH, CA 92660
Orange County (949) 631-3733
DR. JULIE ROBIN RALLS M.D.
Family Medicine
2011 WESTCLIFF DR, SUITE 4
NEWPORT BEACH, CA 92660
Orange County (949) 646-3316
DR. JOHN H ANDERSON DDS
Dentist
2011 WESTCLIFF DR, SUITE 11
NEWPORT BEACH, CA 92660
Orange County (949) 722-7722
SEAN S BAHRI MD
Ophthalmology
2011 WESTCLIFF DR, SUITE #1
NEWPORT BEACH, CA 92660
Orange County (949) 631-7577
DAVID PORZIO, M.D., INC
Specialist
2011 WESTCLIFF DR, STE 6
NEWPORT BEACH, CA 92660
Orange County (949) 645-5528
DR. FRANK ANTHONY RICH DDS
Dentist (General Practice)
2011 WESTCLIFF DR, STE 11
NEWPORT BEACH, CA 92660
Orange County (949) 642-7950

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Owsley's NPI number?

The NPI number for William Owsley is 1003965039. It was assigned to this individual provider in the NPPES registry on January 9, 2007.

Where is William Owsley located?

William Owsley practices at 2011 Westcliff Dr Suite 5, Newport Beach, CA 92660. The listed phone number is (949) 645-2520.

What is William Owsley's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

When was this NPI record last updated?

The NPPES record for William Owsley was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.