Bryan A. Santiago Diaz, M.D.
Internal Medicine Physician · Caguas, PR
Bryan A. Santiago Diaz, M.D. is an internal medicine physician with a practice address in Caguas, Puerto Rico, and NPI 1740733427, issued on Jul 28, 2016. Check the license (Puerto Rico 19432, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Bryan A. Santiago Diaz
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 19432 PR
Self-reported in NPPES; status is on the state search - Practice location
- 2.8 Carr 189, Caguas, PR 00725
- Phone
- (787) 981-0804
- Enumerated
- Jul 28, 2016
- Record last updated
- Dec 30, 2024
- Medicare enrollment
- Enrolled (PECOS I20210623000503); 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 2.8 Carr 189
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katherine Velazquez, MPSYClinical Psychologist1689098543
Verify Bryan A. Santiago Diaz 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 19432Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
163 Medicare Part D claims for 90 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Famotidine35 claims
- Azithromycin16 claims
- Ciprofloxacin Hcl13 claims
- Amoxicillin-Clavulanate Potass11 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: $106.25
1 payment: food and beverage; the largest payer was Chiesi USA, Inc. 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.
Bills Medicare through one group practice
- Hope Med PscSan Juan, PR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bryan A. Santiago Diaz among 1,146 internal medicine physician records in Puerto Rico
Bryan A. Santiago Diaz, 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 2016, is newer than 71% of them.
- NPI issued2016 · 71% of these records are older, 27% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2015 · 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).
58 internal medicine physician records list a practice address in Caguas
They are 58 of the 2,093 NPPES records with a practice address in Caguas, and 1,146 internal medicine physician records in Puerto Rico.
All 1,146 in Puerto Rico → Every provider in Caguas → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Andres Barcelo-Miller, M.DCaguas, PR 007251144244385
- David Carballeira, MDCaguas, PR 007251174524748
- Carmen Cortes, MDCaguas, PR 007251275538779
- Eduardo Diaz Del Valle, MDCaguas, PR 007251457339541
- Marco Feliciano, M.DCaguas, PR 007251033107172
- Anstrong Figueroa, M.D.Caguas, PR 007251750336921
- Wallace Laracuenta, M.DCaguas, PR 007251598788200
- Hector Martinez Torres, MDCaguas, PR 007251821032087
Common questions
What is Bryan A. Santiago Diaz, M.D.'s NPI number?
Bryan A. Santiago Diaz, M.D.'s National Provider Identifier (NPI) is 1740733427, issued on Jul 28, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Bryan A. Santiago Diaz, M.D. located?
The NPPES record lists a practice address at 2.8 Carr 189, Caguas, PR, 00725. Phone: (787) 981-0804. Providers update this record themselves, so call before visiting.
How can I verify Bryan A. Santiago Diaz, M.D.'s license?
NPPES lists Puerto Rico license number 19432, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Bryan A. Santiago Diaz, M.D. prescribe under Medicare Part D?
In 2024, Bryan A. Santiago Diaz, M.D. had 163 Medicare Part D claims for 90 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.