NPPES file of Aug 9, 2026

Walter Rivera, M.D

General Practice Physician · Arecibo, PR

Walter Rivera, M.D is a general practice physician with a practice address in Arecibo, Puerto Rico, and NPI 1609886969, issued on Aug 9, 2006. Check the license (Puerto Rico 14927, 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
1609886969
Name
Walter Rivera
Credential
M.D
Primary taxonomy
General Practice Physician 208D00000X
License number
14927 PR
Self-reported in NPPES; status is on the state search
Practice location
244 Calle Pino Tanyosho, Arecibo, PR 00612
Phone
(787) 884-6161
Enumerated
Aug 9, 2006
Record last updated
Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(787) 884-6966
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 244 Calle Pino Tanyosho

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

  1. Maricarmen Quijano, M.D.General Practice Physician1548270812

Verify Walter Rivera 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 14927
    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
Find the Puerto Rico license search

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5.2 times the Medicare Part D claims of the average general practice physician in 2024

15,608 Medicare Part D claims for 326 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. 59 claims were for opioids.

  1. Walter Rivera15,608
  2. Specialty average3,030

Most prescribed

  1. Gabapentin1,202 claims
  2. Famotidine882 claims
  3. Atorvastatin Calcium763 claims
  4. Synthroid756 claims
  5. Losartan Potassium391 claims
  6. Lisinopril353 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.

Industry payments in 2024: $226.00

10 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 4,259 providers of this specialty with any payment received $1,273.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Walter Rivera$226.00
  2. Specialty average$1,273.40

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Walter Rivera among 4,170 general practice physician records in Puerto Rico

Walter Rivera, M.D 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).

136 general practice physician records list a practice address in Arecibo

They are 136 of the 976 NPPES records with a practice address in Arecibo, and 4,170 general practice physician records in Puerto Rico.

The 8 general practice physician records with the nearest ZIP codes

  1. Pedro Arias, M.D.Arecibo, PR 006121356339881
  2. David Azzaro, M.D.Arecibo, PR 006121790754596
  3. Ismael Bague, M.D.Arecibo, PR 006121386603041
  4. Rolando Colon Martinez, M.D.Arecibo, PR 006121841267200
  5. Manuel Marcano Rivera, MDArecibo, PR 006121447224746
  6. Jose Marrero Nieves, MDArecibo, PR 006121013978246
  7. Rafael Martinez, M.DArecibo, PR 006121609844331
  8. Martha Nieves, MDArecibo, PR 006121972565810

Common questions

What is Walter Rivera, M.D's NPI number?

Walter Rivera, M.D's National Provider Identifier (NPI) is 1609886969, issued on Aug 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Walter Rivera, M.D located?

The NPPES record lists a practice address at 244 Calle Pino Tanyosho, Arecibo, PR, 00612. Phone: (787) 884-6161. Providers update this record themselves, so call before visiting.

How can I verify Walter Rivera, M.D's license?

NPPES lists Puerto Rico license number 14927, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Walter Rivera, M.D prescribe under Medicare Part D?

In 2024, Walter Rivera, M.D had 15,608 Medicare Part D claims for 326 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.