NPI registry status
Active
2026 NPPES data Rheumatology Physician NPI 1821063074 MD
Verify on CMS → Osvaldo Antommattei, MD
Rheumatology Physician in Ponce, 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 6,181 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
6K
Medicare Part D claims · 507 beneficiaries · Rheumatology Physician avg: 2K
Industry payments
$938.06
38 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Osvaldo Antommattei, MD filed 5,501 Medicare Part D claims in 2023 as a Rheumatology Physician in Ponce, Puerto Rico.
- 6K
- Part D claims, 2023
- $938.06
- industry payments (Sunshine Act)
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.
Osvaldo Antommattei, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
5,501 Top 5% higher than 95% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Osvaldo Antommattei, MD 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 Osvaldo Antommattei, MD?
Quality data not reportedPrimary specialty
Rheumatology Physician
Medicare Part D claims
5,501 168% 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).
Osvaldo Antommattei, MD appears in the CMS NPPES registry as a Rheumatology Physician provider holding MD credentials at 1211 MUNOZ RIVERA AV, Ponce, PR, 00717, with a listed phone of (787) 840-0912. NPI 1821063074 was issued on 02/21/2006.
Medicare Part D records for calendar year 2023 show 5,501 prescription claims written by this provider, covering 507 Medicare beneficiaries and totaling roughly $5.4 million in drug spend, with an opioid prescribing rate of 0.8%.
Rheumatology Physician is a mid-sized specialty nationwide, with 6,181 enrolled providers across 52 states and an average of 2,054 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1821063074 |
|---|---|
| Specialty | Rheumatology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 02/21/2006 |
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 Osvaldo Antommattei, MD. Source: openpaymentsdata.cms.gov.
Total received
$938
Largest payer
ABBVIE 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
5,501
Total Claims
$5.4M
Total Drug Cost
507
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 6,045
- Total Day Supply
- 172,176
- Generic Drug Cost
- $69K
- Opioid Claims
- 44 (0.8% rate)
- Antibiotic Claims
- 42
Patient Demographics
- Average Patient Age
- 68.9 years
- Avg HCC Risk Score
- 1.84
- Gender Split
- 73% female / 27% male
- Age Distribution
- <65: 127, 65-74: 230, 75-84: 125, 85+: 25
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Osvaldo Antommattei, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Methotrexate
Methotrexate
947 claims
- Meloxicam
Meloxicam
840 claims
- Sulfasalazine
Sulfasalazine
404 claims
- Hydroxychloroquine…
Hydroxychloroquine Sulfate
380 claims
- Triamcinolone Acet… 314
Triamcinolone Acetonide
314 claims
- Prednisone 258
Prednisone
258 claims
- Humira(Cf) Pen 245
Humira(Cf) Pen
245 claims
- Ketoconazole 195
Ketoconazole
195 claims
| Drug | Claims |
|---|---|
| Methotrexate Methotrexate Sodium | 947 |
| Meloxicam | 840 |
| Sulfasalazine | 404 |
| Hydroxychloroquine Sulfate | 380 |
| Triamcinolone Acetonide | 314 |
| Prednisone | 258 |
| Humira(Cf) Pen Adalimumab | 245 |
| Ketoconazole | 195 |
| Humira(Cf) Adalimumab | 109 |
| Enbrel Etanercept | 107 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Rheumatology Physician Overview
How Osvaldo Antommattei, MD fits within the Rheumatology Physician landscape nationally.
6,181
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider
Osvaldo Antommattei, MD's 5,501 claims are above the specialty average of 2,054.
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 Antommattei.
Dr. Paloma Alejandro
M.D.
San Juan, PR
Dr. Roberto Alvarez
M.D.
Aibonito, PR
Dr. Oscar Arill
M.D.
San Juan, PR
Dr. Michael Babilonia Roman
M.D.
Mayaguez, PR
Dr. Laisha Baez Negron
MD
Carolina, PR
Compare Rheumatology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Puerto Rico medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Rheumatology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Medical Specialties Explained
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Frequently Asked Questions
What is Osvaldo Antommattei, MD's specialty? ▼
Osvaldo Antommattei, MD specializes in Rheumatology Physician and practices in Ponce, Puerto Rico. Credentials: MD.
How much does Osvaldo Antommattei, MD prescribe under Medicare Part D? ▼
In 2023, Osvaldo Antommattei, MD wrote 5,501 Medicare Part D claims totaling $5.4M in drug costs for 507 beneficiaries.
Where is Osvaldo Antommattei, MD located? ▼
Osvaldo Antommattei, MD is located at 1211 MUNOZ RIVERA AV, Ponce, PR, 00717. Phone: (787) 840-0912.
What is Osvaldo Antommattei, MD's NPI number? ▼
Osvaldo Antommattei, MD's National Provider Identifier (NPI) is 1821063074, issued on 02/21/2006.
Does Osvaldo Antommattei, MD prescribe opioids? ▼
Yes, Osvaldo Antommattei, MD had 44 opioid claims in 2023 with an opioid prescribing rate of 0.8%.
How many Rheumatology Physician providers are there in the US? ▼
There are 6,181 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,054 Medicare Part D claims per year.
What drugs does Osvaldo Antommattei, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Osvaldo Antommattei, MD's most frequently prescribed drugs include Methotrexate, Meloxicam, Sulfasalazine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Osvaldo Antommattei, MD accept Medicare? ▼
Osvaldo Antommattei, MD appears in CMS Medicare data with 5,501 Part D claims and 507 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Osvaldo Antommattei, MD's credentials? ▼
Osvaldo Antommattei, MD's NPI is 1821063074 with credentials MD. 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 (2023). 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 April 2026 (NPPES) / 2023 (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
Compiled from official public sources by the PlainDoctor editorial team.