Dr Alexandra Marie Rivera Castro, MD - Medicare General Practice in San Juan, PR

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Dr Alexandra Marie Rivera Castro, MD is a medicare enrolled "General Practice" physician in San Juan, Puerto Rico. Her current practice location is Carr 22 Barrio Monacillos Hospital Oncologico, San Juan, Puerto Rico. You can reach out to her office (for appointments etc.) via phone at (787) 763-4149.

Dr Alexandra Marie Rivera Castro is licensed to practice in Puerto Rico (license number 22873) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1053921023.

Contact Information

Dr Alexandra Marie Rivera Castro, MD
Carr 22 Barrio Monacillos Hospital Oncologico,
San Juan, PR 00935-0001
(787) 763-4149
Not Available

Map and Direction




Physician's Profile

Full NameDr Alexandra Marie Rivera Castro
GenderFemale
SpecialityGeneral Practice
LocationCarr 22 Barrio Monacillos Hospital Oncologico, San Juan, Puerto Rico
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1053921023
  • Provider Enumeration Date: 08/05/2020
  • Last Update Date: 10/09/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 1557715646
  • Enrollment ID: I20230928000395

Medical Identifiers

Medical identifiers for Dr Alexandra Marie Rivera Castro such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1053921023NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208D00000XGeneral Practice 22873 (Puerto Rico)Primary

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Alexandra Marie Rivera Castro is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Alexandra Marie Rivera Castro, MD
Boulevard Del Rio 1, Apt H203 Ave Los Filtros #300,
Guaynabo, PR 00971

Ph: (939) 232-7040		Dr Alexandra Marie Rivera Castro, MD
Carr 22 Barrio Monacillos Hospital Oncologico,
San Juan, PR 00935-0001

Ph: (787) 763-4149

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

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