William Felix Rios, MD
General Practice Physician · Toa Alta, PR
William Felix Rios, MD is a general practice physician with a practice address in Toa Alta, Puerto Rico, and NPI 1013928969, issued on Aug 10, 2006. Check the license (Puerto Rico 15825, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Felix Rios
- Credential
- MD
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 15825 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
- Aug 10, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (787) 870-2735
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 4,170 in Puerto Rico → Look up another NPI →
Also registered at 32 Antonio Lopez
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eduardo Rios, MDGeneral Practice Physician1174580856
Verify William Felix Rios 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 15825Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average general practice physician in 2024
517 Medicare Part D claims for 104 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D.
Most prescribed
- Synthroid24 claims
- Atorvastatin Calcium22 claims
- Dexamethasone22 claims
- Losartan Potassium22 claims
- Metformin Hcl22 claims
- Amlodipine Besylate16 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.
William Felix Rios among 4,170 general practice physician records in Puerto Rico
William Felix 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 fileNo · 29% of these records are
- Record last updated2007 · 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.
All 4,170 in Puerto Rico → Every provider in Toa Alta → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Eduardo Rios, MDToa Alta, PR 009541174580856
- Marjorie Acosta-Guillot, M.DToa Alta, PR 009531013166107
- Cesar Almonte, M.D.Toa Alta, PR 009531154535003
- Arlene Ayala Ayala, MDToa Alta, PR 009531558288936
- Emmanuel Bobe Rosario, M.D.Toa Alta, PR 009531215163589
- Jeissy Ciprian F., MDToa Alta, PR 009531629695721
- Zuleyka Cruz Rodriguez, MDToa Alta, PR 009531073129466
- Clementina Devarie, M.D.Bayamon, PR 009551154524676
Common questions
What is William Felix Rios, MD's NPI number?
William Felix Rios, MD's National Provider Identifier (NPI) is 1013928969, issued on Aug 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Felix 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 William Felix Rios, MD's license?
NPPES lists Puerto Rico license number 15825, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does William Felix Rios, MD prescribe under Medicare Part D?
In 2024, William Felix Rios, MD had 517 Medicare Part D claims for 104 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.