Oliver Neil Refugio, M.D., M.P.H.
NPI 1144727355 · Internal Medicine Physician · Sylmar, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Oliver Neil Refugio, M.D., M.P.H. is a Internal Medicine Physician provider in Sylmar, CA (NPI 1144727355).
Provider details
- NPI number
- 1144727355
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., M.P.H.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A166041 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 117 | 15 |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 81 | 14 |
| Dolutegravir Sodiumbrand: Tivicay | 44 | — |
| Gabapentin | 40 | — |
| Darunavir/Cob/Emtri/Tenof Alafbrand: Symtuza | 26 | — |
| Semaglutidebrand: Ozempic | 26 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$383 across 21 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 1138 N Voyager LnAnaheim, CA 92801-1735Phone: (562) 881-1316
Registry dates
- Enumerated
- 2018-04-12
- Last updated
- 2020-10-07
- Certified
- 2020-10-07
Frequently asked questions
- What is Oliver Neil Refugio's NPI number?
- Oliver Neil Refugio's National Provider Identifier (NPI) is 1144727355, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Oliver Neil Refugio's specialty?
- Oliver Neil Refugio is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Oliver Neil Refugio located?
- Oliver Neil Refugio's practice location on file with NPPES is 14445 Olive View Dr, Sylmar, CA 91342-1437.
- What is Oliver Neil Refugio's phone number?
- The practice phone number listed in the NPPES registry for Oliver Neil Refugio is (747) 210-3000.
- Does Oliver Neil Refugio accept Medicare?
- Oliver Neil Refugio is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Oliver Neil Refugio's NPI active?
- Yes — Oliver Neil Refugio's NPI (1144727355) is active in the NPPES registry as of the last update on 2020-10-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.