What is Alexandra Rivera Castro's NPI number?

Alexandra Rivera Castro's National Provider Identifier (NPI) is 1053921023, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Alexandra Rivera Castro's specialty?

Alexandra Rivera Castro is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).

Where is Alexandra Rivera Castro located?

Alexandra Rivera Castro's practice location on file with NPPES is Carr 22 Barrio Monacillos Hospital Oncologico, San Juan, PR 00935-0001.

What is Alexandra Rivera Castro's phone number?

The practice phone number listed in the NPPES registry for Alexandra Rivera Castro is (787) 763-4149.

Does Alexandra Rivera Castro accept Medicare?

Alexandra Rivera Castro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Alexandra Rivera Castro's NPI active?

Yes — Alexandra Rivera Castro's NPI (1053921023) is active in the NPPES registry as of the last update on 2022-10-09.

IndividualActiveAccepts Medicare

Alexandra Rivera Castro, MD

NPI 1053921023 · General Practice Physician · San Juan, PR

Alexandra Rivera Castro, MD is a General Practice Physician provider in San Juan, PR (NPI 1053921023).

Provider details

NPI number: 1053921023
Entity type: Individual
Primary specialty: General Practice PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Female
Sole proprietor: No
License: 22873 (PR)

Practice location

Carr 22 Barrio Monacillos Hospital Oncologico

San Juan, PR 00935-0001

Phone: (787) 763-4149

More PR providers

Mailing address

Boulevard Del Rio 1

Guaynabo, PR 00971

Specialties & taxonomies

General Practice PhysicianPrimary208D00000XLicense 22873 (PR)
Allopathic & Osteopathic Physicians

Additional practice locations (1)

Centro Medico De Puerto Rico Barrio Monacillos
San Juan, PR 00935-0001
Phone: (787) 777-3535

Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(69/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
6 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
2 documented practice locations

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.

Enumerated: 2020-08-05
Last updated: 2022-10-09
Certified: 2022-10-09

Frequently asked questions

What is Alexandra Rivera Castro's NPI number?: Alexandra Rivera Castro's National Provider Identifier (NPI) is 1053921023, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Alexandra Rivera Castro's specialty?: Alexandra Rivera Castro is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
Where is Alexandra Rivera Castro located?: Alexandra Rivera Castro's practice location on file with NPPES is Carr 22 Barrio Monacillos Hospital Oncologico, San Juan, PR 00935-0001.
What is Alexandra Rivera Castro's phone number?: The practice phone number listed in the NPPES registry for Alexandra Rivera Castro is (787) 763-4149.
Does Alexandra Rivera Castro accept Medicare?: Alexandra Rivera Castro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Alexandra Rivera Castro's NPI active?: Yes — Alexandra Rivera Castro's NPI (1053921023) is active in the NPPES registry as of the last update on 2022-10-09.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Additional practice locations (1)

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Additional practice locations (1)

Profile Score

Frequently asked questions