NPPES file of Aug 9, 2026

Eduardo Alfonso Rios, MD

General Practice Physician · Toa Alta, PR

Eduardo Alfonso Rios, MD is a general practice physician with a practice address in Toa Alta, Puerto Rico, and NPI 1174580856, issued on Apr 27, 2006. Check the license (Puerto Rico 15565, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1174580856
Name
Eduardo Alfonso Rios
Credential
MD
Primary taxonomy
General Practice Physician 208D00000X
License numbers
15565 PR
Z022 PR
Self-reported in NPPES; status is on the state search
Practice location
32 Antonio Lopez, Toa Alta, PR 00954
Phone
(787) 870-3760
Enumerated
Apr 27, 2006
Record last updated
Apr 2, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(787) 870-2735
Medicare enrollment
Enrolled (PECOS I20040929000691); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 32 Antonio Lopez

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. William Rios, MDGeneral Practice Physician1013928969

Verify Eduardo Alfonso Rios in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Puerto Rico board licenses this profession
    Search for license 15565
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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84% fewer Medicare Part D claims than the average general practice physician in 2024

489 Medicare Part D claims for 61 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Eduardo Rios489
  2. Specialty average3,030

Most prescribed

  1. Gabapentin20 claims
  2. Humulin 70-3019 claims
  3. Atorvastatin Calcium18 claims
  4. Losartan Potassium18 claims
  5. Simvastatin17 claims
  6. Metformin Hcl15 claims

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.

Eduardo Alfonso Rios among 4,170 general practice physician records in Puerto Rico

Eduardo Alfonso Rios, MD is one of 4,170 general practice physician records with a practice address in Puerto Rico. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 65% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 29% of these records are
  • Graduated2001 · median 2004 among the 1,228 with a school on file
  • Record last updated2013 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

29 general practice physician records list a practice address in Toa Alta

They are 29 of the 325 NPPES records with a practice address in Toa Alta, and 4,170 general practice physician records in Puerto Rico.

The 8 general practice physician records with the nearest ZIP codes

  1. William Rios, MDToa Alta, PR 009541013928969
  2. Marjorie Acosta-Guillot, M.DToa Alta, PR 009531013166107
  3. Cesar Almonte, M.D.Toa Alta, PR 009531154535003
  4. Arlene Ayala Ayala, MDToa Alta, PR 009531558288936
  5. Emmanuel Bobe Rosario, M.D.Toa Alta, PR 009531215163589
  6. Jeissy Ciprian F., MDToa Alta, PR 009531629695721
  7. Zuleyka Cruz Rodriguez, MDToa Alta, PR 009531073129466
  8. Clementina Devarie, M.D.Bayamon, PR 009551154524676

Common questions

What is Eduardo Alfonso Rios, MD's NPI number?

Eduardo Alfonso Rios, MD's National Provider Identifier (NPI) is 1174580856, issued on Apr 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Eduardo Alfonso Rios, MD located?

The NPPES record lists a practice address at 32 Antonio Lopez, Toa Alta, PR, 00954. Phone: (787) 870-3760. Providers update this record themselves, so call before visiting.

How can I verify Eduardo Alfonso Rios, MD's license?

NPPES lists Puerto Rico license number 15565, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Eduardo Alfonso Rios, MD prescribe under Medicare Part D?

In 2024, Eduardo Alfonso Rios, MD had 489 Medicare Part D claims for 61 beneficiaries; the average among general practice physician prescribers was 3,030. 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.