NPI registry status
Active
2026 NPPES data General Practice Physician NPI 1902812480 DO
Verify on CMS → Donald Nadeau, DO
General Practice Physician in Cranston, Rhode Island.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,838 in General Practice 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
622
Medicare Part D claims · 210 beneficiaries · General Practice Physician avg: 3K
Generic prescribing
98%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$181.71
8 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Donald Nadeau, DO filed 622 Medicare Part D claims in 2024 as a General Practice Physician in Cranston, Rhode Island, prescribing 98% generic.
- 622
- Part D claims, 2024
- 98%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥68th
- 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 Donald Nadeau, DO
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 1902812480), first enumerated 08/01/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 622 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
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$181.71 in reported industry payments (8 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 1902812480 · General Practice Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1902812480
- ENUM-LEGACY 2006
- TAX-MID 17K General Practice
- RX-LIGHT 622
- BOOK-THIN 19 in Rhode Island
- PHOTO-ENUM Ada Santos · 2006
Donald Nadeau, DO's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
622 ≥ 68th percentile 68% 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 certification likely (heuristic, not verified)
Donald Nadeau, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Donald Nadeau, DO?
Quality data not reportedPrimary specialty
General Practice Physician
Medicare Part D claims
622 79% vs specialty avg
Specialty distribution in Rhode Island
How General Practice Physician compares to other specialties among Rhode Island 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 General Practice 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 | 1902812480 |
|---|---|
| Specialty | General Practice Physician |
| Credentials | DO |
| Gender | Male |
| NPI Issued | 08/01/2006 |
Hospital and facility affiliations
Facilities where Donald Nadeau, DO bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Midland Medical Inc
Warwick, RI
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Donald Nadeau, DO. Source: openpaymentsdata.cms.gov.
Total received
$182
Largest payer
Exact Sciences Corporation
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 · Generic-heavy
Donald Nadeau, DO - brand share 2.0%
General Practice Physician average
2% brand-name claims vs 98% generic, on 622 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.
622
Total Claims
$10K
Total Drug Cost
210
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 683.5
- Total Day Supply
- 9,618
- Brand vs Generic
- 2% brand / 98% generic
- Brand Drug Cost
- $2K
- Generic Drug Cost
- $8K
- Antibiotic Claims
- 294
Patient Demographics
- Average Patient Age
- 70.6 years
- Avg HCC Risk Score
- 1.02
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 36, 65-74: 102, 75-84: 55, 85+: 17
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Donald Nadeau, DO prescribes most
Top Medicare Part D drugs by claim count, 2024
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
104 claims
- Methylprednisolone
Methylprednisolone
66 claims
- Azithromycin
Azithromycin
60 claims
- Cefuroxime
Cefuroxime
46 claims
- Dexamethasone
Dexamethasone
46 claims
- Clotrimazole-Betam… 34
Clotrimazole-Betamethasone
34 claims
- Ciprofloxacin Hcl 32
Ciprofloxacin Hcl
32 claims
- Oseltamivir Phosph… 30
Oseltamivir Phosphate
30 claims
| Drug | Claims |
|---|---|
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 104 |
| Methylprednisolone | 66 |
| Azithromycin | 60 |
| Cefuroxime Cefuroxime Axetil | 46 |
| Dexamethasone | 46 |
| Clotrimazole-Betamethasone Clotrimazole/Betamethasone Dip | 34 |
| Ciprofloxacin Hcl | 32 |
| Oseltamivir Phosphate | 30 |
| Fluconazole | 28 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 26 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
General Practice Physician Overview
How Donald Nadeau, DO fits within the General Practice Physician landscape nationally.
16,838
General Practice Physician Providers in US
56
States with General Practice Physician
2,957
Avg Claims per Provider
Donald Nadeau, DO's 622 claims are below the specialty average of 2,957.
Nationwide General Practice Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Nadeau, both outside Rhode Island 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 General Practice Physician Providers in Rhode Island
Other clinicians with the same primary specialty enrolled in Rhode Island, drawn from the same CMS NPPES roster as Nadeau.
One of 19 General Practice Physician providers enrolled in Rhode Island, 5 are shown here.
Dr. Jorge Albina
MD
Providence, RI
Dr. Ajit Chadha
MD
Cranston, RI
Dr. William Chang
MD
Cranston, RI
Dr. Constance Cousins
DDS
North Kingstown, RI
Dr. Stephen D'Amato
M.D.
West Warwick, RI
Compare General Practice Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Donald Nadeau, DO's specialty? ▼
Donald Nadeau, DO specializes in General Practice Physician and practices in Cranston, Rhode Island. Credentials: DO.
How much does Donald Nadeau, DO prescribe under Medicare Part D? ▼
In 2024, Donald Nadeau, DO wrote 622 Medicare Part D claims totaling $10K in drug costs for 210 beneficiaries.
Where is Donald Nadeau, DO located? ▼
Donald Nadeau, DO is located at 1312 OAKLAW AVE, Cranston, RI, 02920. Phone: (401) 463-3380.
What is Donald Nadeau, DO's NPI number? ▼
Donald Nadeau, DO's National Provider Identifier (NPI) is 1902812480, issued on 08/01/2006.
Does Donald Nadeau, DO prescribe more brand-name or generic drugs? ▼
Donald Nadeau, DO's prescribing is 2% brand-name and 98% generic drugs by claim count, with $2K in brand drug costs.
How many General Practice Physician providers are there in the US? ▼
There are 16,838 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,957 Medicare Part D claims per year.
What drugs does Donald Nadeau, DO prescribe most often? ▼
Based on 2024 Medicare Part D data, Donald Nadeau, DO's most frequently prescribed drugs include Amoxicillin-Clavulanate Potass, Methylprednisolone, Azithromycin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Donald Nadeau, DO accept Medicare? ▼
Donald Nadeau, DO appears in CMS Medicare data with 622 Part D claims and 210 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Donald Nadeau, DO's credentials? ▼
Donald Nadeau, DO's NPI is 1902812480 with credentials DO. 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.