Efrain Mascareno, O.D.
NPI 1457507279 · Optometrist · Chula Vista, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Efrain Mascareno, O.D. is a Optometrist provider in Chula Vista, CA (NPI 1457507279).
Provider details
- NPI number
- 1457507279
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 10906 (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
17 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$298 across 3 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
Registry dates
- Enumerated
- 2008-08-12
- Last updated
- 2013-04-17
Frequently asked questions
- What is Efrain Mascareno's NPI number?
- Efrain Mascareno's National Provider Identifier (NPI) is 1457507279, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Efrain Mascareno's specialty?
- Efrain Mascareno is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Efrain Mascareno located?
- Efrain Mascareno's practice location on file with NPPES is 440 4th Ave, Chula Vista, CA 91910-4443.
- What is Efrain Mascareno's phone number?
- The practice phone number listed in the NPPES registry for Efrain Mascareno is (619) 427-2020.
- Does Efrain Mascareno accept Medicare?
- Efrain Mascareno is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Efrain Mascareno's NPI active?
- Yes — Efrain Mascareno's NPI (1457507279) is active in the NPPES registry as of the last update on 2013-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.