Nestor R. Allende
Internal Medicine Physician · San Juan, PR
Nestor R. Allende is an internal medicine physician with a practice address in San Juan, Puerto Rico, and NPI 1528285202, issued on Apr 20, 2007. Check the license (Puerto Rico 6819, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nestor R. Allende
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 6819 PR
Self-reported in NPPES; status is on the state search - Practice location
- 369 Calle DE Diego, San Juan, PR 00923
- Phone
- (787) 751-4476
- Enumerated
- Apr 20, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (787) 751-7947
- Medicare enrollment
- Enrolled (PECOS I20050329000698); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,146 in Puerto Rico → Look up another NPI →
Also registered at 369 Calle DE Diego
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rosa Allende, M.D.Internal Medicine Physician1578782728
- Miguel Arroyo-Ramos, M.D.Physical Medicine & Rehabilitation Physician1245314327
- Roberto De Felix - DavilaPhysical Medicine & Rehabilitation Physician1356455224
- Carmen De Leon De Leon, M.DGeneral Practice Physician1174740476
- Rene Fernandez-Pelegrina, MDReproductive Endocrinology Physician1528277290
- Luis Flores, M.D.Hematology & Oncology Physician1285608216
Verify Nestor R. Allende 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 6819Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% more Medicare Part D claims than the average internal medicine physician in 2024
5,304 Medicare Part D claims for 219 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 73 claims were for opioids.
Most prescribed
- Atorvastatin Calcium473 claims
- Gabapentin364 claims
- Losartan Potassium224 claims
- Metoprolol Succinate183 claims
- Amlodipine Besylate182 claims
- Metformin Hcl171 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.
Nestor R. Allende among 1,146 internal medicine physician records in Puerto Rico
Nestor R. Allende 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 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 41% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated1984 · median 1996 among the 595 with a school on file
- Record last updated2007 · 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).
322 internal medicine physician records list a practice address in San Juan
They are 322 of the 8,960 NPPES records with a practice address in San Juan, and 1,146 internal medicine physician records in Puerto Rico.
All 1,146 in Puerto Rico → Every provider in San Juan → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Rosa Allende, M.D.San Juan, PR 009231578782728
- Jose Diaz-Correa, M.D.San Juan, PR 009231821126095
- Anibal Feliciano Deliz, MDSan Juan, PR 009231124248315
- Arnaldo Marrero Rodriguez, M.DSan Juan, PR 009231598822512
- Eliut Melendez Ortiz, MDSan Juan, PR 009231891761896
- Angel Miro-Diaz, MDSan Juan, PR 009231821064346
- Eileen Ramirez-Vilches, M.D.Rio Piedras, PR 009231942277918
- Adive Rivera Muller, MDSan Juan, PR 009231891796397
Common questions
What is Nestor R. Allende's NPI number?
Nestor R. Allende's National Provider Identifier (NPI) is 1528285202, issued on Apr 20, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Nestor R. Allende located?
The NPPES record lists a practice address at 369 Calle DE Diego, San Juan, PR, 00923. Phone: (787) 751-4476. Providers update this record themselves, so call before visiting.
How can I verify Nestor R. Allende's license?
NPPES lists Puerto Rico license number 6819, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Nestor R. Allende prescribe under Medicare Part D?
In 2024, Nestor R. Allende had 5,304 Medicare Part D claims for 219 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.