Javier Castro, MD
NPI 1659121937 · Student in an Organized Health Care Education/Training Program · Sacramento, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Javier Castro, MD is a Student in an Organized Health Care Education/Training Program provider in Sacramento, CA (NPI 1659121937).
Provider details
- NPI number
- 1659121937
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2024-03-27
- Last updated
- 2024-03-27
- Certified
- 2024-03-26
Frequently asked questions
- What is Javier Castro's NPI number?
- Javier Castro's National Provider Identifier (NPI) is 1659121937, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Javier Castro's specialty?
- Javier Castro is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Javier Castro located?
- Javier Castro's practice location on file with NPPES is 4150 V St # 1100, Sacramento, CA 95817-1460.
- What is Javier Castro's phone number?
- The practice phone number listed in the NPPES registry for Javier Castro is (916) 734-2737.
- Does Javier Castro accept Medicare?
- Javier Castro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Javier Castro's NPI active?
- Yes — Javier Castro's NPI (1659121937) is active in the NPPES registry as of the last update on 2024-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.