Geoffrey B. Trenkle, D.O.
NPI 1003044876ActiveIndividual· Otolaryngology, Facial Plastic Surgery· Los Angeles, CA
Otolaryngology, Facial Plastic Surgery (D.O.) in Los Angeles, California, trained at Western University of Health Sciences College of Dental Med (class of 2009). 2,119 Medicare patients in 2024, $532,207 paid; nearly all of their 3,477 Part D prescriptions were generic (96%). Medtronic, Inc. was the largest of 7 companies reporting payments in 2025, $1,431 in all, mostly food and beverage.
Overview
| NPI | 1003044876 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | Jun 30, 2009 |
| Last updated in NPPES | Oct 18, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Otolaryngology, Facial Plastic Surgery Primary | 207YS0123X | 20A13166 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Otolaryngology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 2,119 |
|---|---|
| Services billed | 9,612 across 113 procedure codes |
| Paid by Medicare | $532,207 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,477 · 4,722 30-day fills |
|---|---|
| Patients | 1,355 |
| Total drug cost | $138,750 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Western University of Health Sciences College of Dental Med |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Otolaryngology |
| Telehealth | Offers telehealth |
Medical group
- Geoffrey Trenkle DO A Professional Medical CorporationLos Angeles, CA · 16 clinicians
Hospital affiliations
- Adventist Health White MemorialLos Angeles, CA
- Desert Regional Medical CenterPalm Springs, CA
- Huntington HospitalPasadena, CA
- Providence Little Company of Mary Med Ctr TorranceTorrance, CA
- Southern California Hospital at HollywoodHollywood, CA
Industry payments (Open Payments)
- 2025$1,431 · 18 payments from 7 companies
- 2024$954.91 · 17 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $575.94 | 5 |
| Stryker Corporation | $251.43 | 2 |
| Smith+nephew, Inc. | $173.07 | 3 |
| Neurent Medical Limited | $148.54 | 3 |
| Haag-Streit USA, Inc. | $100.00 | 1 |
What the 2025 payments were for
- Food and Beverage$1,431 · 18 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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