Josean Omar Flores Santiago, MD
Nephrology Physician · Mayaguez, PR
Josean Omar Flores Santiago, MD is a nephrology physician with a practice address in Mayaguez, Puerto Rico, and NPI 1467938795, issued on Jul 19, 2018. Check the license (Puerto Rico 023329, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Josean Omar Flores Santiago
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 023329 PR
Self-reported in NPPES; status is on the state search - Practice location
- 14 Calle Peral N Ste 1C, Mayaguez, PR 00680
- Phone
- (939) 301-3030
- Enumerated
- Jul 19, 2018
- Record last updated
- Sep 16, 2025
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 152 in Puerto Rico → Look up another NPI →
Verify Josean Omar Flores Santiago 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 023329Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average nephrology physician in 2024
465 Medicare Part D claims for 110 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.
Most prescribed
- Farxiga78 claims
- Losartan Potassium55 claims
- Lisinopril47 claims
- Jardiance42 claims
- Atorvastatin Calcium39 claims
- Amlodipine Besylate19 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: $671.24
10 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,230 providers of this specialty with any payment received $3,091.37 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.
Josean Omar Flores Santiago among 152 nephrology physician records in Puerto Rico
Josean Omar Flores Santiago, MD is one of 152 nephrology physician records with a practice address in Puerto Rico. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 91% of them.
- NPI issued2018 · 91% of these records are older, 6% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileNo · 82% of these records are
- Record last updated2025 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 nephrology physician records list a practice address in Mayaguez
They are 15 of the 1,408 NPPES records with a practice address in Mayaguez, and 152 nephrology physician records in Puerto Rico.
All 152 in Puerto Rico → Every provider in Mayaguez → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Dionisio Acosta, MDMayaguez, PR 006801659724615
- Efrain Flores De Hostos, MDMayaguez, PR 006801083710164
- Oliver Guerrero Dujarric, MDMayaguez, PR 006801861598039
- William Hurtado-Santiago, MDMayaguez, PR 006801912022310
- Roberto Lebron Rivera, MDMayaguez, PR 006801215033493
- Enrique Lefevre, MDMayaguez, PR 006801588760763
- Gerardo Medina Caban, MDMayaguez, PR 006801003912288
- Bryan Pagan Rivera, M.D.Mayaguez, PR 006801760846497
Common questions
What is Josean Omar Flores Santiago, MD's NPI number?
Josean Omar Flores Santiago, MD's National Provider Identifier (NPI) is 1467938795, issued on Jul 19, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Josean Omar Flores Santiago, MD located?
The NPPES record lists a practice address at 14 Calle Peral N Ste 1C, Mayaguez, PR, 00680. Phone: (939) 301-3030. Providers update this record themselves, so call before visiting.
How can I verify Josean Omar Flores Santiago, MD's license?
NPPES lists Puerto Rico license number 023329, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Josean Omar Flores Santiago, MD prescribe under Medicare Part D?
In 2024, Josean Omar Flores Santiago, MD had 465 Medicare Part D claims for 110 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.