Geoffrey B. Trenkle, D.O.
Facial Plastic Surgery Physician · Los Angeles, CA
Geoffrey B. Trenkle, D.O. is a facial plastic surgery physician with a practice address in Los Angeles, California, and NPI 1003044876, issued on Jun 30, 2009. Check the license (California 20A13166, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Geoffrey B. Trenkle
- Credential
- D.O.
- Primary taxonomy
- Facial Plastic Surgery Physician 207YS0123X
- License number
- 20A13166 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1700 E Cesar E Chavez Ave Ste 2500, Los Angeles, CA 90033
- Phone
- (323) 268-6731
- Enumerated
- Jun 30, 2009
- Record last updated
- Oct 18, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (323) 268-6738
- Medicare enrollment
- Enrolled (PECOS I20150302001646); accepts Medicare assignment
- Medical or professional school
- Western University Of Health Sciences College Of Dental Med, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest facial plastic surgery physician records → All 133 in California → Look up another NPI →
Also registered at 1700 E Cesar E Chavez Ave Ste 2500
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Philip Boekelheide, PA-CPhysician Assistant1962971788
- Christopher Dalaten, PA-CPhysician Assistant1154097293
- Soroush Farnoosh, MDOtolaryngology Physician1235583287
- Kyohei ItamuraOtolaryngology Physician1619590585
- Jacqueline Keng, PA-CPhysician Assistant1275348351
- Jason Kim, PA-CPhysician Assistant1770468431
Verify Geoffrey B. Trenkle in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A13166Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9.4 times the Medicare Part D claims of the average facial plastic surgery physician in 2024
3,477 Medicare Part D claims for 1,355 beneficiaries, against an average of 370 among the 532 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Azelastine Hcl950 claims
- Fluticasone Propionate870 claims
- Ipratropium Bromide277 claims
- Famotidine228 claims
- Diclofenac Sodium131 claims
- Omeprazole99 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 0 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $954.91
17 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 451 providers of this specialty with any payment received $3,253.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Geoffrey Trenkle DO A Professional Medical CorporationLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Geoffrey B. Trenkle among 133 facial plastic surgery physician records in California
Geoffrey B. Trenkle, D.O. is one of 133 facial plastic surgery physician records with a practice address in California. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 55% of them.
- NPI issued2009 · 55% of these records are older, 40% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated2009 · median 2009 among the 64 with a school on file
- Record last updated2019 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207YS0123X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Facial Plastic Surgery Physician providers in California
There are 133 facial plastic surgery physician records in California.
All 133 in California → Every provider in Los Angeles → Facial Plastic Surgery Physician nationwide →
The 8 facial plastic surgery physician records with the nearest ZIP codes
- Ahmed Maki, DOLos Angeles, CA 900331457507998
- Kian Karimi, MDLos Angeles, CA 900251073603262
- Amit Kochhar, MDLos Angeles, CA 900251114191194
- Steven Lee, M.D.Los Angeles, CA 900201992877427
- Henry Chen, MD, MBALos Angeles, CA 900481447396601
- Anna Hsu, MDLos Angeles, CA 900481902023625
- Nicholas Schenck, MDLos Angeles, CA 900481851424949
- Behrooz Torkian, MDLos Angeles, CA 900491659497824
Common questions
What is Geoffrey B. Trenkle, D.O.'s NPI number?
Geoffrey B. Trenkle, D.O.'s National Provider Identifier (NPI) is 1003044876, issued on Jun 30, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Geoffrey B. Trenkle, D.O. located?
The NPPES record lists a practice address at 1700 E Cesar E Chavez Ave Ste 2500, Los Angeles, CA, 90033. Phone: (323) 268-6731. Providers update this record themselves, so call before visiting.
How can I verify Geoffrey B. Trenkle, D.O.'s license?
NPPES lists California license number 20A13166, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Geoffrey B. Trenkle, D.O. prescribe under Medicare Part D?
In 2024, Geoffrey B. Trenkle, D.O. had 3,477 Medicare Part D claims for 1,355 beneficiaries; the average among facial plastic surgery physician prescribers was 370. Part D covers Medicare prescriptions only.
What is Geoffrey B. Trenkle, D.O.'s MIPS final score?
The 2023 MIPS final score is 0 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.