Alexander Rios, M.D
Emergency Medicine Physician · San Juan, PR
Alexander Rios, M.D is an emergency medicine physician with a practice address in San Juan, Puerto Rico, and NPI 1548550619, issued on Apr 11, 2011. Check the license with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alexander Rios
- Credential
- M.D
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 0101258806 VA
Self-reported in NPPES; status is on the state search - Practice location
- University District Hospital, San Juan, PR 00935
- Phone
- (787) 754-0101
- Enumerated
- Apr 11, 2011
- Record last updated
- Apr 13, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170810000844); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 278 in Puerto Rico → Look up another NPI →
Also registered at University District Hospital
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Andres Garcia Berrios, MDInternal Medicine Physician1447714282
Verify Alexander Rios in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Puerto Rico board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average emergency medicine physician in 2024
97 Medicare Part D claims for 65 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Pennsylvania Physician Services, LLCWilkes Barre, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander Rios among 278 emergency medicine physician records in Puerto Rico
Alexander Rios, M.D is one of 278 emergency medicine physician records with a practice address in Puerto Rico. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 58% of them.
- NPI issued2011 · 58% of these records are older, 38% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 29% of these records are
- Graduated2011 · median 2013 among the 81 with a school on file
- Record last updated2016 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Puerto Rico
There are 278 emergency medicine physician records in Puerto Rico.
All 278 in Puerto Rico → Every provider in San Juan → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Rosalie Barrios, M.D.San Juan, PR 009351477500833
- Alexis Bayo McGrath, MD, FACEPSan Juan, PR 009351528021011
- Sylvia Martir, M.D.San Juan, PR 009351184705691
- Melissa Santiago Garraton, M.D.San Juan, PR 009351336436658
- Nicole Carrillo-Colon, MDSan Juan, PR 009361548989841
- Yamilette Rivera Rivera, MDSan Juan, PR 009361205328341
- Ernesto Torres, MDSan Juan, PR 009361912118902
- Rafael Vazquez-Torres, MDSan Juan, PR 009361770606568
Common questions
What is Alexander Rios, M.D's NPI number?
Alexander Rios, M.D's National Provider Identifier (NPI) is 1548550619, issued on Apr 11, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Rios, M.D located?
The NPPES record lists a practice address at University District Hospital, San Juan, PR, 00935. Phone: (787) 754-0101. Providers update this record themselves, so call before visiting.
How can I verify Alexander Rios, M.D's license?
Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Alexander Rios, M.D prescribe under Medicare Part D?
In 2024, Alexander Rios, M.D had 97 Medicare Part D claims for 65 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions 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. Medicare files from data.cms.gov. 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.