Roberto Jose Santiago Mendez, M.D
Radiation Oncology Physician · Bayamon, PR
Roberto Jose Santiago Mendez, M.D is a radiation oncology physician with a practice address in Bayamon, Puerto Rico, and NPI 1710025762, issued on Feb 2, 2007. Check the license (Puerto Rico 15470, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Roberto Jose Santiago Mendez
- Credential
- M.D
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 15470 PR
Self-reported in NPPES; status is on the state search - Practice location
- Marginal #2, Esquina 3B, Suite G1, Bayamon, PR 00960
- Phone
- (787) 966-7500
- Enumerated
- Feb 2, 2007
- Record last updated
- Mar 21, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (787) 966-7505
- Medicare enrollment
- Enrolled (PECOS I20070917000523); accepts Medicare assignment
- Medical or professional school
- University Of Puerto Rico School Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 20 in Puerto Rico → Look up another NPI →
Verify Roberto Jose Santiago Mendez 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 15470Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% more Medicare Part D claims than the average radiation oncology physician in 2024
212 Medicare Part D claims for 98 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 19 claims were for opioids.
Most prescribed
- Tamsulosin Hcl34 claims
- Ciprofloxacin Hcl26 claims
- Lorazepam15 claims
- Gabapentin13 claims
- Methylprednisolone12 claims
- Tramadol Hcl11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 80.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,651.95
6 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 3,275 providers of this specialty with any payment received $1,897.85 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 3 group practices
- Caribbean Imaging And Radiation Treatment Center IncPonce, PR
- Centro DE Radioterapia Auxilio Mutuo IncSan Juan, PR
- Precise Radiation Oncology Center PscBayamon, PR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Roberto Jose Santiago Mendez among 20 radiation oncology physician records in Puerto Rico
Roberto Jose Santiago Mendez, M.D is one of 20 radiation oncology physician records with a practice address in Puerto Rico. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 50% of them.
- NPI issued2007 · 50% of these records are older, 35% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1999 · median 1991 among the 15 with a school on file
- Record last updated2013 · 85% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Puerto Rico
There are 20 radiation oncology physician records in Puerto Rico.
All 20 in Puerto Rico → Every provider in Bayamon → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Ricardo Lopez Mujica, M.D.Bayamon, PR 009601710994611
- Gloria Arroyo-BoschBayamon, PR 009591477685832
- Alberto Cerra Franco, M.D.Bayamon, PR 009591225447006
- Francisco Cordero-Gallardo, M.DBayamon, PR 009591689091779
- Luisa Marcial, M.D.Bayamon, PR 009591326181462
- Marigdalia Ramirez-Fort, M.D.Guaynabo, PR 009691205121795
- Carlos Chevere, M.D.Rio Piedras, PR 009351023025285
- Julio Diaz, M.D.Rio Piedras, PR 009351366459596
Common questions
What is Roberto Jose Santiago Mendez, M.D's NPI number?
Roberto Jose Santiago Mendez, M.D's National Provider Identifier (NPI) is 1710025762, issued on Feb 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Roberto Jose Santiago Mendez, M.D located?
The NPPES record lists a practice address at Marginal #2, Esquina 3B, Suite G1, Bayamon, PR, 00960. Phone: (787) 966-7500. Providers update this record themselves, so call before visiting.
How can I verify Roberto Jose Santiago Mendez, M.D's license?
NPPES lists Puerto Rico license number 15470, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Roberto Jose Santiago Mendez, M.D prescribe under Medicare Part D?
In 2024, Roberto Jose Santiago Mendez, M.D had 212 Medicare Part D claims for 98 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Roberto Jose Santiago Mendez, M.D's MIPS final score?
The 2023 MIPS final score is 80.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.