Brock Trejo, M.D.
NPI 1841556099 · Family Medicine Physician · Klamath Falls, OR
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brock Trejo, M.D. is a Family Medicine Physician provider in Klamath Falls, OR (NPI 1841556099).
Provider details
- NPI number
- 1841556099
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD163376 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 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
1,429 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 723 | $94 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 514 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 177 | $64 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 15 | $48 |
Typical Medicare-allowed amounts for these services range $16–$94 (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 · 119 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 511 | 142 |
| Amlodipine Besylate | 412 | 111 |
| Levothyroxine Sodium | 320 | 80 |
| Omeprazole | 291 | 78 |
| Lisinopril | 272 | 74 |
| Metoprolol Succinate | 193 | 48 |
| Hydrochlorothiazide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-04-02
- Last updated
- 2020-02-11
- Certified
- 2020-02-11
Frequently asked questions
- What is Brock Trejo's NPI number?
- Brock Trejo's National Provider Identifier (NPI) is 1841556099, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brock Trejo's specialty?
- Brock Trejo is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brock Trejo located?
- Brock Trejo's practice location on file with NPPES is 2821 Daggett Ave Ste 200, Klamath Falls, OR 97601-1106.
- What is Brock Trejo's phone number?
- The practice phone number listed in the NPPES registry for Brock Trejo is (541) 274-8400.
- Does Brock Trejo accept Medicare?
- Brock Trejo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brock Trejo's NPI active?
- Yes — Brock Trejo's NPI (1841556099) is active in the NPPES registry as of the last update on 2020-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.