Russell Trepanier, P.A.-C.
NPI 1891745097 · Physician Assistant · La Jolla, CA
Russell Trepanier, P.A.-C. is a Physician Assistant provider in La Jolla, CA (NPI 1891745097).
Provider details
- NPI number
- 1891745097
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.-C.
- Sex
- Male
- Sole proprietor
- No
- License
- PA15917 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
291 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 158 | $83 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 62 | $100 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 55 | $116 |
| New Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 15 Minutes Or More99202 | 16 | $66 |
Typical Medicare-allowed amounts for these services range $66–$116 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Hyclate | 24 | 24 |
| Cefuroxime Axetilbrand: Cefuroxime | 20 | 20 |
| Cefdinir | 18 | 18 |
| Prednisone | 15 | 15 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 12 | 12 |
| Methylprednisolone | 12 | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-11
- Last updated
- 2017-11-16
Frequently asked questions
- What is Russell Trepanier's NPI number?
- Russell Trepanier's National Provider Identifier (NPI) is 1891745097, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Russell Trepanier's specialty?
- Russell Trepanier is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Russell Trepanier located?
- Russell Trepanier's practice location on file with NPPES is 10666 N Torrey Pines Rd, La Jolla, CA 92037-1027.
- What is Russell Trepanier's phone number?
- The practice phone number listed in the NPPES registry for Russell Trepanier is (858) 554-8663.
- Is Russell Trepanier's NPI active?
- Yes — Russell Trepanier's NPI (1891745097) is active in the NPPES registry as of the last update on 2017-11-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.