LOS ANGELES CENTER FOR EAR NOSE THROAT AND ALLERGY
NPI 1992124978
Otolaryngology in Los Angeles, CA

Active since April 07, 2014
1700 E CESAR E CHAVEZ AVE STE 2500, LOS ANGELES, CA 90033(909) 569-9097(323) 268-6738 Get Directions Write a Review

NPPES record last updated: October 30, 2019. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Los Angeles Center For Ear Nose Throat And Allergy NPPES

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

LOS ANGELES CENTER FOR EAR NOSE THROAT AND ALLERGY (NPI 1992124978) is a healthcare organization registered as an otolaryngology in Los Angeles, California and active in the NPI registry since April 2014. The organization lists Geoffrey B Trenkle, Owner, as its authorized official.

NPPES Registry Identity

NPI1992124978
Entity TypeOrganization
Primary Taxonomy207Y00000X
Legal Business NameGEOFFREY TRENKLE DO A PROFESSIONAL MEDICAL CORPORATION
Location Address1700 E CESAR E CHAVEZ AVE STE 2500Los Angeles, CA 90033-2434
Mailing Address1700 E Cesar E Chavez Ave Ste 2500Los Angeles, CA 90033-2434 · (909) 569-9097 · Fax (323) 268-6738
Fax(323) 268-6738
Organization SubpartNo
Authorized OfficialGeoffrey B TrenkleOwner · (909) 553-3445
Enumeration DateApril 7, 2014
Last NPPES UpdateOctober 30, 2019
NPI 1992124978 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
License Licensed in CA · 20A13166
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.
1700 E CESAR E CHAVEZ AVE STE 2500, Los Angeles, CA 90033

Other Names 1

Doing Business AsLos Angeles Center For Ear Nose Throat And Allergy

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D2190010

Los Angeles Center For Ear, Nose, Throat And Allergy · Los Angeles, CA
Expired · Aug 6, 2026
CLIA Number05D2190010
Laboratory TypePhysician Office
Certificate Effective DateAugust 7, 2024
Certificate Expiration DateAugust 6, 2026
Laboratory DirectorGeoffrey Trenkle
Laboratory Phone(323) 306-9632
Laboratory LocationLos Angeles Center For Ear, Nose, Throat And Allergy1700 E Cesar E Chavez Ave Ste 2500, Los Angeles, CA 90033
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 15

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

Otolaryngology (Facial Plastic Surgery)
1700 E CESAR E CHAVEZ AVE STE 2500
LOS ANGELES, CA 90033
Otolaryngology
1700 E CESAR E CHAVEZ AVE STE 2500
LOS ANGELES, CA 90033
Physician Assistant
1700 E CESAR E CHAVEZ AVE STE 2500
LOS ANGELES, CA 90033
Physician Assistant
1700 E CESAR E CHAVEZ AVE STE 2500
LOS ANGELES, CA 90033
Otolaryngology
1700 E CESAR E CHAVEZ AVE STE 2500
LOS ANGELES, CA 90033
Physician Assistant
1700 E CESAR E CHAVEZ AVE STE 2500
LOS ANGELES, CA 90033
Nurse Practitioner (Family)
1700 E CESAR E CHAVEZ AVE STE 2500
LOS ANGELES, CA 90033
Otolaryngology (Facial Plastic Surgery)
1700 E CESAR E CHAVEZ AVE STE 2500
LOS ANGELES, CA 90033

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 Geoffrey Trenkle Do A Professional Medical Corporation's NPI number?

The NPI number for Geoffrey Trenkle Do A Professional Medical Corporation is 1992124978. It was assigned to this organization in the NPPES registry on April 7, 2014. The provider is doing business as Los Angeles Center For Ear Nose Throat And Allergy.

Where is Geoffrey Trenkle Do A Professional Medical Corporation located?

Geoffrey Trenkle Do A Professional Medical Corporation is located at 1700 E Cesar E Chavez Ave Ste 2500, Los Angeles, CA 90033. The listed phone number is (909) 569-9097.

What is Geoffrey Trenkle Do A Professional Medical Corporation'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 Geoffrey Trenkle Do A Professional Medical Corporation was last updated on October 30, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.