Grissel Rios, M.D.
Rheumatology Physician · San Juan, PR
Grissel Rios, M.D. is a rheumatology physician with a practice address in San Juan, Puerto Rico, and NPI 1821072935, issued on Dec 1, 2005. Check the license (Puerto Rico 13344, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Grissel Rios
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 13344 PR
Self-reported in NPPES; status is on the state search - Practice location
- Ave Roosevelt 400 Clinicas Las Americas, San Juan, PR 00918
- Phone
- (787) 765-3245
- Enumerated
- Dec 1, 2005
- Record last updated
- Feb 10, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (787) 765-0569
- Medicare enrollment
- Enrolled (PECOS I20110121000085); accepts Medicare assignment
- Medical or professional school
- University Of Puerto Rico School Of Medicine, 1996
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 87 in Puerto Rico → Look up another NPI →
Verify Grissel Rios 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 13344Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.2 times the Medicare Part D claims of the average rheumatology physician in 2024
8,215 Medicare Part D claims for 655 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 166 claims were for opioids.
Most prescribed
- Prednisone877 claims
- Gabapentin860 claims
- Methotrexate536 claims
- Hydroxychloroquine Sulfate396 claims
- Celecoxib236 claims
- Duloxetine Hcl220 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: $6,940.90
24 payments; by number, the most common kind was food and beverage; the largest payer was Ucb SA. The 4,486 providers of this specialty with any payment received $8,538.33 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
- Recinto DE Ciencias MedicasRio Piedras, PR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Grissel Rios among 87 rheumatology physician records in Puerto Rico
Grissel Rios, M.D. is one of 87 rheumatology physician records with a practice address in Puerto Rico. 91% 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, 83% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated1996 · median 1992 among the 69 with a school on file
- Record last updated2010 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Puerto Rico
There are 87 rheumatology physician records in Puerto Rico.
All 87 in Puerto Rico → Every provider in San Juan → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Paloma Alejandro, M.D.San Juan, PR 009181578820577
- Maria Chirino-Socias, MDSan Juan, PR 009181154405488
- Luis Garcia-Jaunarena, MDSan Juan, PR 009181194820696
- Ricardo Infante, M.D.San Juan, PR 009181003947540
- William Matos-Santiago, M.D.San Juan, PR 009181477536498
- Sari PomalesSan Juan, PR 009181457318149
- Radames Sierra-ZoritaSan Juan, PR 009181669457875
- Oscar Soto Raices, MDSan Juan, PR 009181962441717
Common questions
What is Grissel Rios, M.D.'s NPI number?
Grissel Rios, M.D.'s National Provider Identifier (NPI) is 1821072935, issued on Dec 1, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Grissel Rios, M.D. located?
The NPPES record lists a practice address at Ave Roosevelt 400 Clinicas Las Americas, San Juan, PR, 00918. Phone: (787) 765-3245. Providers update this record themselves, so call before visiting.
How can I verify Grissel Rios, M.D.'s license?
NPPES lists Puerto Rico license number 13344, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Grissel Rios, M.D. prescribe under Medicare Part D?
In 2024, Grissel Rios, M.D. had 8,215 Medicare Part D claims for 655 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.