Nelson Vallejo, M.D.
Internal Medicine Physician · Las Piedras, PR
Nelson Vallejo, M.D. is an internal medicine physician with a practice address in Las Piedras, Puerto Rico, and NPI 1306812243, issued on Feb 28, 2006. Check the license (Puerto Rico 10500, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nelson Vallejo
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 10500 PR
Self-reported in NPPES; status is on the state search - Practice location
- Ave Jose C Barbosa, Las Piedras, PR 00771
- Phone
- (787) 733-3508
- Enumerated
- Feb 28, 2006
- Record last updated
- Feb 26, 2024
- Fax
- (787) 733-0925
- Medicare enrollment
- Enrolled (PECOS I20101130000309); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,146 in Puerto Rico → Look up another NPI →
Verify Nelson Vallejo 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 10500Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% more Medicare Part D claims than the average internal medicine physician in 2024
6,060 Medicare Part D claims for 362 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Atorvastatin Calcium517 claims
- Dovato292 claims
- Losartan Potassium239 claims
- Lisinopril196 claims
- Rosuvastatin Calcium195 claims
- Amlodipine Besylate176 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: $141,058.70
148 payments; by number, the most common kind was food and beverage; the largest payer was ViiV Healthcare Company. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Nelson Vallejo among 1,146 internal medicine physician records in Puerto Rico
Nelson Vallejo, M.D. 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. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 52% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated1987 · median 1996 among the 595 with a school on file
- Record last updated2024 · 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).
2 internal medicine physician records list a practice address in Las Piedras
They are 2 of the 208 NPPES records with a practice address in Las Piedras, and 1,146 internal medicine physician records in Puerto Rico.
All 1,146 in Puerto Rico → Every provider in Las Piedras → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Rafael Maldonado-Rosa, M.D.Las Piedras, PR 007711891858056
- Felix Caratini Soto, MDCoamo, PR 007691992773147
- Edwin Coimbre Cartagona, MDCoamo, PR 007691215097258
- Alberto Rolon Velez, M.D.Coamo, PR 007691891039657
- Jose Rolon-Miranda, M.D.Coamo, PR 007691093776528
- Karim Saleh Vega, MDCoamo, PR 007691487769956
- Orlando Torres-Miranda, M.D.Coamo, PR 007691740298793
- Marcos Velez, M.D.Coamo, PR 007691194938449
Common questions
What is Nelson Vallejo, M.D.'s NPI number?
Nelson Vallejo, M.D.'s National Provider Identifier (NPI) is 1306812243, issued on Feb 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nelson Vallejo, M.D. located?
The NPPES record lists a practice address at Ave Jose C Barbosa, Las Piedras, PR, 00771. Phone: (787) 733-3508. Providers update this record themselves, so call before visiting.
How can I verify Nelson Vallejo, M.D.'s license?
NPPES lists Puerto Rico license number 10500, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Nelson Vallejo, M.D. prescribe under Medicare Part D?
In 2024, Nelson Vallejo, M.D. had 6,060 Medicare Part D claims for 362 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.