Rene Casas, MD
Internal Medicine Physician · Barranquitas, PR
Rene Casas, MD is an internal medicine physician with a practice address in Barranquitas, Puerto Rico, and NPI 1396726253, issued on Nov 8, 2005. Check the license (Puerto Rico 6288, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Rene Casas
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 6288 PR
Self-reported in NPPES; status is on the state search - Practice location
- NO 19 Munoz Rivera St, Barranquitas, PR 00794
- Phone
- (787) 857-3448
- Enumerated
- Nov 8, 2005
- Record last updated
- Mar 7, 2023
- Fax
- (787) 857-3448
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,146 in Puerto Rico → Look up another NPI →
Verify Rene Casas 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 6288Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average internal medicine physician in 2024
627 Medicare Part D claims for 21 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 29 claims were for opioids.
Most prescribed
- Omeprazole36 claims
- Atorvastatin Calcium30 claims
- Hydrochlorothiazide30 claims
- Amlodipine Besylate26 claims
- Gabapentin25 claims
- Metformin Hcl25 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.
Rene Casas among 1,146 internal medicine physician records in Puerto Rico
Rene Casas, MD 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 52% of these records are
- Record last updated2023 · 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).
Internal Medicine Physician providers in Puerto Rico
There are 1,146 internal medicine physician records in Puerto Rico.
All 1,146 in Puerto Rico → Every provider in Barranquitas → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Andres Aviles Candelario, MDJuana Diaz, PR 007951336783968
- Ariel Morciglio, MDJuana Diaz, PR 007951063402329
- Ana Rivera-PaganJuana Diaz, PR 007951518502186
- Daniel Ruiz-Soler, M.D.Juana Diaz, PR 007951891754990
- Carmarie Santiago Ortolaza, MDJuana Diaz, PR 007951740708114
- Julio Santiago Vigo, MDHumacao, PR 007921013097757
- Juan Villavicencio, MDHumacao, PR 007921609859206
- Angel Alonso Santos, MDHumacao, PR 007911043271315
Common questions
What is Rene Casas, MD's NPI number?
Rene Casas, MD's National Provider Identifier (NPI) is 1396726253, issued on Nov 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Rene Casas, MD located?
The NPPES record lists a practice address at NO 19 Munoz Rivera St, Barranquitas, PR, 00794. Phone: (787) 857-3448. Providers update this record themselves, so call before visiting.
How can I verify Rene Casas, MD's license?
NPPES lists Puerto Rico license number 6288, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Rene Casas, MD prescribe under Medicare Part D?
In 2024, Rene Casas, MD had 627 Medicare Part D claims for 21 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.