NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1013145275 MD
Verify on CMS → Derek Andelloux, MD
Family Medicine Physician in E Greenwich, 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 150,125 in Family Medicine 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
4K
Medicare Part D claims · 298 beneficiaries · Family Medicine Physician avg: 4K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Derek Andelloux, MD filed 4,401 Medicare Part D claims in 2024 as a Family Medicine Physician in E Greenwich, Rhode Island, prescribing 87% generic.
- 4K
- Part D claims, 2024
- 87%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥92nd
- 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 Derek Andelloux, MD
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 1013145275), first enumerated 06/26/2009.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 4,401 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
- 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.
Compare Andelloux with other Family Medicine Physician providers
Same primary specialty, same federal CMS NPPES roster.
All 4 Family Medicine Physician providers in E Greenwich, RI →
Also enrolled in Rhode Island
- Dr. Emily Ackerman, M.D. Slatersville, RI
- Dr. Matilda Addo, MD Pawtucket, RI
- Dr. Trent Ainsworth, D.O. Tiverton, RI
- Dr. Abdul Rahman Al Hout, MD Smithfield, RI
- Dr. Madiha Ali, M.D. Cranston, RI
- Dr. Joyce Alves, DO East Providence, RI
Other specialties in E Greenwich: Physical Therapist (2) · Internal Medicine Physician (2) · Clinical Social Worker (2) · Doula (1)
CMS NPPES provider registry desk
NPI 1013145275 · Family Medicine Physician
NPI-10 · ENUM-MID · TAX-MEGA · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1013145275
- ENUM-MID 2009
- TAX-MEGA 150K Family Medicine
- RX-MID 4,401
- BOOK-THIN 445 in Rhode Island
- PHOTO-ENUM Valerie Wislo · 2009
Derek Andelloux, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
4,401 ≥ 92nd percentile 92% 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)
Derek Andelloux, MD 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 Derek Andelloux, MD?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
4,401 25% vs specialty avg
Specialty distribution in Rhode Island
How Family Medicine 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 Family Medicine 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 | 1013145275 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/26/2009 |
Hospital and facility affiliations
Facilities where Derek Andelloux, MD 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.
Nantucket Cottage Hospital
★★★☆☆ 3/5
Nantucket, MA
Acute Care Hospitals
CMS CCN: 220177
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Typical
Derek Andelloux, MD - brand share 13.0%
Family Medicine Physician average
13% brand-name claims vs 87% generic, on 4,401 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.
4,401
Total Claims
$349K
Total Drug Cost
298
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 8,895.233
- Total Day Supply
- 256,088
- Brand vs Generic
- 13% brand / 87% generic
- Brand Drug Cost
- $297K
- Generic Drug Cost
- $51K
- Opioid Claims
- 150 (3.4% rate)
- Antibiotic Claims
- 60
Patient Demographics
- Average Patient Age
- 72.8 years
- Avg HCC Risk Score
- 0.77
- Gender Split
- 46% female / 54% male
- Age Distribution
- <65: 12, 65-74: 179, 75-84: 86, 85+: 21
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Derek Andelloux, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Atorvastatin Calcium
Atorvastatin Calcium
419 claims
- Amlodipine Besylate
Amlodipine Besylate
173 claims
- Lisinopril 159
Lisinopril
159 claims
- Metoprolol Succinate 154
Metoprolol Succinate
154 claims
- Levothyroxine Sodium 135
Levothyroxine Sodium
135 claims
- Hydrochlorothiazide 133
Hydrochlorothiazide
133 claims
- Tamsulosin Hcl 118
Tamsulosin Hcl
118 claims
- Losartan Potassium 99
Losartan Potassium
99 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 419 |
| Amlodipine Besylate | 173 |
| Lisinopril | 159 |
| Metoprolol Succinate | 154 |
| Levothyroxine Sodium | 135 |
| Hydrochlorothiazide | 133 |
| Tamsulosin Hcl | 118 |
| Losartan Potassium | 99 |
| Simvastatin | 96 |
| Lisinopril-Hydrochlorothiazide Lisinopril/Hydrochlorothiazide | 93 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Derek Andelloux, MD fits within the Family Medicine Physician landscape nationally.
150,125
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,519
Avg Claims per Provider
Derek Andelloux, MD's 4,401 claims are above the specialty average of 3,519.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Andelloux, both outside Rhode Island so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2009)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in Rhode Island
Other clinicians with the same primary specialty enrolled in Rhode Island, drawn from the same CMS NPPES roster as Andelloux.
One of 445 Family Medicine Physician providers enrolled in Rhode Island, 11 are shown on this page.
Dr. Jamiel Ambrad
MD
Wakefield, RI
Dr. Gowri Anandarajah
MD
Pawtucket, RI
Dr. Rocco Andreozzi
DO
Westerly, RI
Dr. Victoria Angenent-Mari
MD
Warwick, RI
Dr. Nnennaoyin Anosike
M.D.
East Greenwich, RI
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Derek Andelloux, MD's specialty? ▼
Derek Andelloux, MD specializes in Family Medicine Physician and practices in E Greenwich, Rhode Island. Credentials: MD.
How much does Derek Andelloux, MD prescribe under Medicare Part D? ▼
In 2024, Derek Andelloux, MD wrote 4,401 Medicare Part D claims totaling $349K in drug costs for 298 beneficiaries.
Where is Derek Andelloux, MD located? ▼
Derek Andelloux, MD is located at 3461 S COUNTY TRL, E Greenwich, RI, 02818. Phone: (401) 471-6760.
What is Derek Andelloux, MD's NPI number? ▼
Derek Andelloux, MD's National Provider Identifier (NPI) is 1013145275, issued on 06/26/2009.
Does Derek Andelloux, MD prescribe more brand-name or generic drugs? ▼
Derek Andelloux, MD's prescribing is 13% brand-name and 87% generic drugs by claim count, with $297K in brand drug costs.
Does Derek Andelloux, MD prescribe opioids? ▼
Yes, Derek Andelloux, MD had 150 opioid claims in 2024 with an opioid prescribing rate of 3.4%.
How many Family Medicine Physician providers are there in the US? ▼
There are 150,125 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,519 Medicare Part D claims per year.
What drugs does Derek Andelloux, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Derek Andelloux, MD's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Derek Andelloux, MD accept Medicare? ▼
Derek Andelloux, MD appears in CMS Medicare data with 4,401 Part D claims and 298 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Derek Andelloux, MD's credentials? ▼
Derek Andelloux, MD's NPI is 1013145275 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 (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.