Doctor profile · Federal record
Dr. Grissel Rios, M.D.
Rheumatology Physician (CMS: Rheumatology) · San Juan, PR
- NPI 1821072935
- Accepts Medicare
- 30 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
Ave Roosevelt 400 Clinicas Las Americas, Suite 404
San Juan, PR 00918
(787) 765-3245
fax (787) 765-0569
Credentials & registration
- NPI registered
- December 2005 — 21 yrs on file
- Profile last updated
- February 10, 2010
- Year of graduation
- 1996 — 30 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State license (1)
- Puerto Rico #13344
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1821072935. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
137
Distinct HCPCS
2
Medicare allowed
$12,607
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 123 | 60 | $90 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 14 | 14 | $111 |
In context: peer comparison
Among 10 peers in this city , average services per provider: 190. This provider delivers 0.7× the peer median.Open Payments
Industry payments received
All-time total
$6,941
Transactions
24
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| UCB SA | 8 | $6,452.77 | |
| Amgen Inc. | 7 | $250.63 | |
| Celgene Corporation | 3 | $104.09 | |
| GlaxoSmithKline, LLC. | 4 | $65.46 | |
| ABBVIE INC. | 1 | $42.95 | |
| UCB, Inc. | 1 | $25.00 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
4,342
Patients
880
Total drug cost
$940,125
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gabapentin | Generic | 901 | 175 | $8,600 |
| Prednisone | Generic | 817 | 153 | $4,862 |
| Methotrexate (Methotrexate Sodium) | Brand | 537 | 79 | $11,035 |
| Hydroxychloroquine Sulfate | Generic | 402 | 71 | $17,787 |
| Celecoxib | Generic | 242 | 48 | $4,757 |
| Baclofen | Generic | 163 | 55 | $1,916 |
| Meloxicam | Generic | 159 | 39 | $934 |
| Tizanidine Hcl | Generic | 156 | 37 | $2,254 |
| Duloxetine Hcl | Generic | 153 | 37 | $2,397 |
| Synthroid (Levothyroxine Sodium) | Brand | 149 | 32 | $8,154 |
Frequently asked questions
What is Dr. Grissel Rios's medical specialty?
Dr. Grissel Rios practices Rheumatology Physician in San Juan, PR.
Where does Dr. Grissel Rios practice?
Dr. Grissel Rios practices at Ave Roosevelt 400 Clinicas Las Americas, San Juan, PR 00918. Office phone: 7877653245.
What is Dr. Grissel Rios's NPI?
Dr. Grissel Rios's National Provider Identifier (NPI) is 1821072935, issued by NPPES.
Does Dr. Grissel Rios accept Medicare assignment?
Yes. Dr. Grissel Rios accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Grissel Rios commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.