Brian Estwick, MD
NPI 1003889247 · Ophthalmology Physician · Marina Del Rey, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Estwick, MD is a Ophthalmology Physician provider in Marina Del Rey, CA (NPI 1003889247).
Provider details
- NPI number
- 1003889247
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A41775 (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
20 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-08
- Last updated
- 2023-03-07
Frequently asked questions
- What is Brian Estwick's NPI number?
- Brian Estwick's National Provider Identifier (NPI) is 1003889247, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Estwick's specialty?
- Brian Estwick is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Estwick located?
- Brian Estwick's practice location on file with NPPES is 4644 Lincoln Blvd, Marina Del Rey, CA 90292-6313.
- What is Brian Estwick's phone number?
- The practice phone number listed in the NPPES registry for Brian Estwick is (310) 390-2420.
- Does Brian Estwick accept Medicare?
- Brian Estwick is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Estwick's NPI active?
- Yes — Brian Estwick's NPI (1003889247) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.