LOS ANGELES CENTER FOR EAR NOSE THROAT AND ALLERGY
NPI 1992124978
Otolaryngology in Los Angeles, CA
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
Specialties & Licenses
Other Names 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Los Angeles Center For Ear Nose Throat And Allergy is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
17Medicare enrollment records show 17 clinicians reassign Medicare billing to Los Angeles Center For Ear Nose Throat And Allergy, which bills Medicare for the services they deliver. Of these, 6 practice at this address and 9 within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 4
Clinicians, nearest first (17)
Los Angeles, CA 90033
Los Angeles, CA 90033
Los Angeles, CA 90033
Los Angeles, CA 90033
Palm Springs, CA 92262
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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.
Is Geoffrey Trenkle Do A Professional Medical Corporation enrolled in Medicare?
Yes. Geoffrey Trenkle Do A Professional Medical Corporation is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Geoffrey Trenkle Do A Professional Medical Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 17 clinicians in 4 Medicare specialties reassign their Medicare billing to Geoffrey Trenkle Do A Professional Medical Corporation. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Otolaryngology (13), Nurse Practitioner (2) and Internal Medicine (1). Of these, 6 practice at this address and 9 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 7 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.
# Los Angeles Center For Ear Nose Throat And Allergy · NPI 1992124978
Otolaryngology organization in Los Angeles, California. Organization record, active in the CMS NPPES registry since April 7, 2014.
## Identity
- **NPI:** 1992124978 (Entity type: Organization)
- **Enumerated:** April 7, 2014
- **Primary specialty:** Otolaryngology · taxonomy 207Y00000X
- **Legal business name:** Geoffrey Trenkle Do A Professional Medical Corporation
- **Organization subpart:** No
- **Authorized official:** Geoffrey Trenkle, OWNER
## Practice location
- **Address:** 1700 E CESAR E CHAVEZ AVE STE 2500, Los Angeles, CA 90033-2434
- **Phone:** (909) 569-9097 · **Fax:** (323) 268-6738
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 17 clinicians in 4 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Otolaryngology (13), Nurse Practitioner (2), Internal Medicine (1); 6 practice at this address and 9 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 30, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1992124978) · Data from the CMS NPPES public registry.