NPI registry status
Active
2026 NPPES data Rheumatology Physician NPI 1477510063 M.D.
Verify on CMS → Sinia Rios, M.D.
Rheumatology Physician in Bayamon, Puerto Rico.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,377 in Rheumatology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
2K
Medicare Part D claims · 323 beneficiaries · Rheumatology Physician avg: 2K
Generic prescribing
74%
generic claims · 26% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.1K
27 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Sinia Rios, M.D. filed 1,910 Medicare Part D claims in 2024 as a Rheumatology Physician in Bayamon, Puerto Rico, prescribing 74% generic.
- 2K
- Part D claims, 2024
- 74%
- generic prescribing
- $1.1K
- industry payments (Sunshine Act)
- ≥83rd
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Sinia Rios, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1477510063), first enumerated 04/27/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,910 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Reported
Industry payment transparency
$1.1K in reported industry payments (27 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1477510063 · Rheumatology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1477510063
- ENUM-LEGACY 2006
- TAX-MID 6K Rheumatology Physician
- RX-MID 1,910
- BOOK-THIN 66 in Puerto Rico
- PHOTO-ENUM Andrew Kang · 2006
Sinia Rios, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,910 ≥ 83rd percentile 83% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Sinia Rios, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Sinia Rios, M.D.?
Quality data not reportedPrimary specialty
Rheumatology Physician
Medicare Part D claims
1,910 7% vs specialty avg
Specialty distribution in Puerto Rico
How Rheumatology Physician compares to other specialties among Puerto Rico providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Rheumatology Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1477510063 |
|---|---|
| Specialty | Rheumatology Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 04/27/2006 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Sinia Rios, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$1.1K
Largest payer
Amgen Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Above average
Sinia Rios, M.D. - brand share 26.0%
Rheumatology Physician average
26% brand-name claims vs 74% generic, on 1,910 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
1,910
Total Claims
$2.7M
Total Drug Cost
323
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,726.7
- Total Day Supply
- 76,888
- Brand vs Generic
- 26% brand / 74% generic
- Brand Drug Cost
- $2.6M
- Generic Drug Cost
- $27K
Patient Demographics
- Average Patient Age
- 69.7 years
- Avg HCC Risk Score
- 1.68
- Gender Split
- 87% female / 13% male
- Age Distribution
- <65: 88, 65-74: 129, 75-84: 84, 85+: 22
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Sinia Rios, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Methotrexate
Methotrexate
366 claims
- Humira(Cf) Pen
Humira(Cf) Pen
181 claims
- Tizanidine Hcl
Tizanidine Hcl
162 claims
- Meloxicam
Meloxicam
151 claims
- Prolia 87
Prolia
87 claims
- Nabumetone 69
Nabumetone
69 claims
- Methylprednisolone 68
Methylprednisolone
68 claims
- Hydroxychloroquine… 63
Hydroxychloroquine Sulfate
63 claims
| Drug | Claims |
|---|---|
| Methotrexate Methotrexate Sodium | 366 |
| Humira(Cf) Pen Adalimumab | 181 |
| Tizanidine Hcl | 162 |
| Meloxicam | 151 |
| Prolia Denosumab | 87 |
| Nabumetone | 69 |
| Methylprednisolone | 68 |
| Hydroxychloroquine Sulfate | 63 |
| Ibandronate Sodium | 63 |
| Alendronate Sodium | 49 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Rheumatology Physician Overview
How Sinia Rios, M.D. fits within the Rheumatology Physician landscape nationally.
6,377
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,058
Avg Claims per Provider
Sinia Rios, M.D.'s 1,910 claims are below the specialty average of 2,058.
Nationwide Rheumatology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Rios, both outside Puerto Rico so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Rheumatology Physician Providers in Puerto Rico
Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as Rios.
One of 66 Rheumatology Physician providers enrolled in Puerto Rico, 5 are shown here.
Dr. Paloma Alejandro
M.D.
San Juan, PR
Dr. Roberto Alvarez
M.D.
Aibonito, PR
Dr. Osvaldo Antommattei
MD
Ponce, PR
Dr. Oscar Arill
M.D.
San Juan, PR
Dr. Michael Babilonia Roman
M.D.
Mayaguez, PR
Compare Rheumatology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Sinia Rios, M.D.'s specialty? ▼
Sinia Rios, M.D. specializes in Rheumatology Physician and practices in Bayamon, Puerto Rico. Credentials: M.D..
How much does Sinia Rios, M.D. prescribe under Medicare Part D? ▼
In 2024, Sinia Rios, M.D. wrote 1,910 Medicare Part D claims totaling $2.7M in drug costs for 323 beneficiaries.
Where is Sinia Rios, M.D. located? ▼
Sinia Rios, M.D. is located at 67 CALLE SANTA CRUZ, Bayamon, PR, 00961. Phone: (787) 780-0964.
What is Sinia Rios, M.D.'s NPI number? ▼
Sinia Rios, M.D.'s National Provider Identifier (NPI) is 1477510063, issued on 04/27/2006.
Does Sinia Rios, M.D. prescribe more brand-name or generic drugs? ▼
Sinia Rios, M.D.'s prescribing is 26% brand-name and 74% generic drugs by claim count, with $2.6M in brand drug costs.
How many Rheumatology Physician providers are there in the US? ▼
There are 6,377 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,058 Medicare Part D claims per year.
What drugs does Sinia Rios, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Sinia Rios, M.D.'s most frequently prescribed drugs include Methotrexate, Humira(Cf) Pen, Tizanidine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sinia Rios, M.D. accept Medicare? ▼
Sinia Rios, M.D. appears in CMS Medicare data with 1,910 Part D claims and 323 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sinia Rios, M.D.'s credentials? ▼
Sinia Rios, M.D.'s NPI is 1477510063 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.