Nelson A. Alvarez Cardin, MD
Internal Medicine Physician · San Juan, PR
Nelson A. Alvarez Cardin, MD is an internal medicine physician with a practice address in San Juan, Puerto Rico, and NPI 1275199523, issued on May 13, 2019. Check the license (Puerto Rico 21477, as entered in NPPES) with the Puerto Rico board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Nelson A. Alvarez Cardin
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 21477 PR
Self-reported in NPPES; status is on the state search - Practice location
- 10 Calle Casia, San Juan, PR 00921
- Phone
- (787) 641-7582
- Enumerated
- May 13, 2019
- Record last updated
- Oct 10, 2025
- Medicare enrollment
- Enrolled (PECOS I20251024001574); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,146 in Puerto Rico → Look up another NPI →
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Verify Nelson A. Alvarez Cardin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Puerto Rico board licenses this profession
Search for license 21477Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Nelson A. Alvarez Cardin among 1,146 internal medicine physician records in Puerto Rico
Nelson A. Alvarez Cardin, MD is one of 1,146 internal medicine physician records with a practice address in Puerto Rico. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2019, is newer than 78% of them.
- NPI issued2019 · 78% of these records are older, 17% newer
- In a Medicare fileNo · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2018 · median 1996 among the 595 with a school on file
- Record last updated2025 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
322 internal medicine physician records list a practice address in San Juan
They are 322 of the 8,960 NPPES records with a practice address in San Juan, and 1,146 internal medicine physician records in Puerto Rico. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,146 in Puerto Rico → Every provider in San Juan → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Juan Jose Bayron, M.D.San Juan, PR 009211932104015
- Francisco Bellaflores, MDRio Piedras, PR 009211689653222
- Hidelisa Borges-Aponte, MDSan Juan, PR 009211659329266
- Luzimar Conaway, MDSan Juan, PR 009211952394728
- Maria Correa, MDSan Juan, PR 009211215907381
- Hector Leon-Figueroa, MDRio Piedras, PR 009211225020704
- Milagros Marrero, MDSan Juan, PR 009211730169244
- Juan Montes Ruiz, MDSan Juan, PR 009211952391732
Common questions
What is Nelson A. Alvarez Cardin, MD's NPI number?
Nelson A. Alvarez Cardin, MD's National Provider Identifier (NPI) is 1275199523, issued on May 13, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Nelson A. Alvarez Cardin, MD located?
The NPPES record lists a practice address at 10 Calle Casia, San Juan, PR, 00921. Phone: (787) 641-7582. Providers update this record themselves, so call before visiting.
How can I verify Nelson A. Alvarez Cardin, MD's license?
NPPES lists Puerto Rico license number 21477, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.