Alberto Javier Grana Santini, MD
Endocrinology, Diabetes & Metabolism Physician · Caguas, PR
Alberto Javier Grana Santini, MD is an endocrinology, diabetes & metabolism physician with a practice address in Caguas, Puerto Rico, and NPI 1366829731, issued on May 5, 2015. Check the license (Puerto Rico 19952, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alberto Javier Grana Santini
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- 19952 PR
32935 PR
Self-reported in NPPES; status is on the state search - Practice location
- Carr 172, Caguas, PR 00725
- Phone
- (787) 563-0550
- Enumerated
- May 5, 2015
- Record last updated
- Aug 2, 2022
- Medicare enrollment
- Enrolled (PECOS I20210910001676); accepts Medicare assignment
- Medical or professional school
- Ponce School Of Medicine, 2015
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 144 in Puerto Rico → Look up another NPI →
Also registered at Carr 172
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jose Perez Matamoros, M.D.General Practice Physician1033439013
Verify Alberto Javier Grana Santini 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 19952Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average endocrinology, diabetes & metabolism physician in 2024
5,745 Medicare Part D claims for 417 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 54% of claims.
Most prescribed
- Synthroid417 claims
- Ozempic404 claims
- Atorvastatin Calcium319 claims
- Lantus314 claims
- Metformin Hcl257 claims
- Pioglitazone Hcl256 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: $992.69
44 payments; by number, the most common kind was food and beverage; the largest payer was Eli Lilly Export S.A. Puerto Rico Branch. The 5,661 providers of this specialty with any payment received $5,742.15 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.
Alberto Javier Grana Santini among 144 endocrinology, diabetes & metabolism physician records in Puerto Rico
Alberto Javier Grana Santini, MD is one of 144 endocrinology, diabetes & metabolism physician records with a practice address in Puerto Rico. 97% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 71% of them.
- NPI issued2015 · 71% of these records are older, 25% newer
- In a Medicare fileYes · 97% of these records are
- In the CMS Doctors and Clinicians fileYes · 83% of these records are
- Graduated2015 · median 2007 among the 119 with a school on file
- Record last updated2022 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Puerto Rico
There are 144 endocrinology, diabetes & metabolism physician records in Puerto Rico.
All 144 in Puerto Rico → Every provider in Caguas → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Nicolle Canales Ramos, MDCaguas, PR 007251740636026
- Amilcar Cintron, M.D.Caguas, PR 007251790751931
- Ivan Laboy-Ortiz, M.D.Caguas, PR 007251245565696
- Edna Melendez Reyes, MDCaguas, PR 007251922091784
- Juan Otero, M.D.Caguas, PR 007251871590968
- Angelo Rosado Perez, M.DCaguas, PR 007251528042991
- Ivan Serrano Santiago, M.D.Caguas, PR 007251952763476
- Viviana Ortiz SantiagoCaguas, PR 007271407114945
Common questions
What is Alberto Javier Grana Santini, MD's NPI number?
Alberto Javier Grana Santini, MD's National Provider Identifier (NPI) is 1366829731, issued on May 5, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Alberto Javier Grana Santini, MD located?
The NPPES record lists a practice address at Carr 172, Caguas, PR, 00725. Phone: (787) 563-0550. Providers update this record themselves, so call before visiting.
How can I verify Alberto Javier Grana Santini, MD's license?
NPPES lists Puerto Rico license number 19952, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Alberto Javier Grana Santini, MD prescribe under Medicare Part D?
In 2024, Alberto Javier Grana Santini, MD had 5,745 Medicare Part D claims for 417 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.