Brett Holko, D.O.
NPI 1740398213 · Internal Medicine Physician · Bonita, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brett Holko, D.O. is a Internal Medicine Physician provider in Bonita, CA (NPI 1740398213).
Provider details
- NPI number
- 1740398213
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A8540 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 94 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 527 | 219 |
| Lisinopril | 339 | 136 |
| Amlodipine Besylate | 304 | 138 |
| Losartan Potassium | 279 | 110 |
| Levothyroxine Sodium | 228 | 87 |
| Rosuvastatin Calcium | 227 | 89 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-26
- Last updated
- 2021-11-29
- Certified
- 2021-11-29
Frequently asked questions
- What is Brett Holko's NPI number?
- Brett Holko's National Provider Identifier (NPI) is 1740398213, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brett Holko's specialty?
- Brett Holko is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brett Holko located?
- Brett Holko's practice location on file with NPPES is 3955 Bonita Rd, Bonita, CA 91902-1230.
- What is Brett Holko's phone number?
- The practice phone number listed in the NPPES registry for Brett Holko is (800) 290-5000.
- Does Brett Holko accept Medicare?
- Brett Holko is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brett Holko's NPI active?
- Yes — Brett Holko's NPI (1740398213) is active in the NPPES registry as of the last update on 2021-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.