Oliver Guerrero Dujarric, MD
Nephrology Physician · Mayaguez, PR
Oliver Guerrero Dujarric, MD is a nephrology physician with a practice address in Mayaguez, Puerto Rico, and NPI 1861598039, issued on Sep 15, 2006. Check the license (Puerto Rico 13561, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Oliver Guerrero Dujarric
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 13561 PR
Self-reported in NPPES; status is on the state search - Practice location
- 1050 Los Corazones Ave, Mayaguez, PR 00680
- Phone
- (787) 834-5334
- Enumerated
- Sep 15, 2006
- Record last updated
- Aug 16, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (787) 833-6640
- Medicare enrollment
- Enrolled (PECOS I20041115000862); accepts Medicare assignment
- Medical or professional school
- Ponce School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 152 in Puerto Rico → Look up another NPI →
Also registered at 1050 Los Corazones Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Efrain Flores De Hostos, MDNephrology Physician1083710164
- Roberto Lebron Rivera, MDNephrology Physician1215033493
- Enrique Lefevre, MDNephrology Physician1588760763
- Gerardo Medina Caban, MDNephrology Physician1003912288
- Francisco Reyes Vale, MDNephrology Physician1063518249
- Jorge Weber Acevedo, MDNephrology Physician1740386838
Verify Oliver Guerrero Dujarric 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 13561Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average nephrology physician in 2024
1,325 Medicare Part D claims for 260 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Sevelamer Carbonate276 claims
- Lanthanum Carbonate100 claims
- Farxiga95 claims
- Doxazosin Mesylate74 claims
- Calcitriol57 claims
- Carvedilol47 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: $504.48
10 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. 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.
Bills Medicare through one group practice
- Nefrologos Asociados Del OesteSan German, PR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Oliver Guerrero Dujarric among 152 nephrology physician records in Puerto Rico
Oliver Guerrero Dujarric, 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 63% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated1997 · median 2004 among the 124 with a school on file
- Record last updated2017 · 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
- Josean Flores Santiago, MDMayaguez, PR 006801467938795
- 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 Oliver Guerrero Dujarric, MD's NPI number?
Oliver Guerrero Dujarric, MD's National Provider Identifier (NPI) is 1861598039, issued on Sep 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Oliver Guerrero Dujarric, MD located?
The NPPES record lists a practice address at 1050 Los Corazones Ave, Mayaguez, PR, 00680. Phone: (787) 834-5334. Providers update this record themselves, so call before visiting.
How can I verify Oliver Guerrero Dujarric, MD's license?
NPPES lists Puerto Rico license number 13561, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Oliver Guerrero Dujarric, MD prescribe under Medicare Part D?
In 2024, Oliver Guerrero Dujarric, MD had 1,325 Medicare Part D claims for 260 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.