Geoffrey B Trenkle, DO - Medicare Otolaryngology in Los Angeles, CA

Geoffrey B Trenkle, DO is a medicare enrolled "Otolaryngology - Facial Plastic Surgery" physician in Los Angeles, California. He went to Western University Of Health Sciences College Of Dental Med and graduated in 2009 and has 15 years of diverse experience with area of expertise as Otolaryngology. He is a member of the group practice Geoffrey Trenkle Do A Professional Medical Corporation and his current practice location is 1700 E Cesar E Chavez Ave Ste 2500, Los Angeles, California. You can reach out to his office (for appointments etc.) via phone at (323) 268-6731.

Geoffrey B Trenkle is licensed to practice in California (license number 20A13166) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1003044876.

Contact Information

Geoffrey B Trenkle, DO
1700 E Cesar E Chavez Ave Ste 2500,
Los Angeles, CA 90033-2434
(323) 268-6731
(323) 268-6738

Map and Direction




Physician's Profile

Full NameGeoffrey B Trenkle
GenderMale
SpecialityOtolaryngology
Experience15 Years
Location1700 E Cesar E Chavez Ave Ste 2500, Los Angeles, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Geoffrey B Trenkle attended and graduated from Western University Of Health Sciences College Of Dental Med in 2009
  NPI Data:
  • NPI Number: 1003044876
  • Provider Enumeration Date: 06/30/2009
  • Last Update Date: 10/18/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 5698923944
  • Enrollment ID: I20150302001646

Medical Identifiers

Medical identifiers for Geoffrey B Trenkle such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003044876NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207YS0123XOtolaryngology - Facial Plastic Surgery 20A13166 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Huntington Memorial HospitalPasadena, CAHospital
Ronald Reagan Ucla Medical CenterLos angeles, CAHospital
Southern California Hospital At HollywoodHollywood, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Geoffrey Trenkle Do A Professional Medical Corporation175960731013

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Geoffrey B Trenkle allows following entities to bill medicare on his behalf.
Entity NameGeoffrey Trenkle Do A Professional Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992124978
PECOS PAC ID: 1759607310
Enrollment ID: O20150226001292
Entity NameEmployee Medical Consultants Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1558099325
PECOS PAC ID: 8022474360
Enrollment ID: O20230511002786

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Geoffrey B Trenkle is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Geoffrey B Trenkle, DO
1700 E Cesar E Chavez Ave Ste 2500,
Los Angeles, CA 90033-2434

Ph: (323) 268-6731
Geoffrey B Trenkle, DO
1700 E Cesar E Chavez Ave Ste 2500,
Los Angeles, CA 90033-2434

Ph: (323) 268-6731

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

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