NPI registry status
Active
2026 NPPES data Hospitalist Physician NPI 1790725919 MD
Verify on CMS → Louis Rubenstein, MD
Hospitalist Physician in Wakefield, 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 17,950 in Hospitalist 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
158
Medicare Part D claims · 74 beneficiaries · Hospitalist Physician avg: 940
Generic prescribing
84%
generic claims · 16% 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
Louis Rubenstein, MD filed 158 Medicare Part D claims in 2024 as a Hospitalist Physician in Wakefield, Rhode Island, prescribing 84% generic.
- 158
- Part D claims, 2024
- 84%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥34th
- 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 Louis Rubenstein, 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 1790725919), first enumerated 06/07/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 158 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 Rubenstein with other Hospitalist Physician providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Rhode Island
- Dr. Nadeem Anis, MD Providence, RI
- Dr. Thomas Atwood, MD Pawtucket, RI
- Dr. Bridget Azera, MD Westerly, RI
- Dr. Irina Chernaya, MD Newport, RI
- Dr. Lee Eschenroeder, M.D. East Providence, RI
- Dr. Fnu Farukhuddin, MD Providence, RI
Other specialties in Wakefield: Clinical Social Worker (47) · Physical Therapist (40) · Family Nurse Practitioner (34) · Internal Medicine Physician (29)
CMS NPPES provider registry desk
NPI 1790725919 · Hospitalist Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1790725919
- ENUM-LEGACY 2006
- TAX-MID 18K Hospitalist Physician
- RX-LIGHT 158
- BOOK-THIN 37 in Rhode Island
- PHOTO-ENUM Ysabel Reyes, MD · 2006
Louis Rubenstein, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
158 ≥ 34th percentile 34% 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)
Louis Rubenstein, 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 Louis Rubenstein, MD?
Quality data not reportedPrimary specialty
Hospitalist Physician
Medicare Part D claims
158 83% vs specialty avg
Specialty distribution in Rhode Island
How Hospitalist 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 Hospitalist 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 | 1790725919 |
|---|---|
| Specialty | Hospitalist Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/07/2006 |
Hospital and facility affiliations
Facilities where Louis Rubenstein, 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.
Silver Spring Health Care Management Inc
Wakefield, 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).
Brand vs generic prescribing mix · Typical
Louis Rubenstein, MD - brand share 16.0%
Hospitalist Physician average
16% brand-name claims vs 84% generic, on 158 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.
158
Total Claims
$14K
Total Drug Cost
74
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 248.5
- Total Day Supply
- 6,405
- Brand vs Generic
- 16% brand / 84% generic
- Brand Drug Cost
- $12K
- Generic Drug Cost
- $1K
- Antibiotic Claims
- 22
Patient Demographics
- Average Patient Age
- 76.4 years
- Avg HCC Risk Score
- 1.82
- Gender Split
- 49% female / 51% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Eliquis Apixaban | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hospitalist Physician Overview
How Louis Rubenstein, MD fits within the Hospitalist Physician landscape nationally.
17,950
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
940
Avg Claims per Provider
Louis Rubenstein, MD's 158 claims are below the specialty average of 940.
Nationwide Hospitalist Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Rubenstein, 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 Hospitalist Physician Providers in Rhode Island
Other clinicians with the same primary specialty enrolled in Rhode Island, drawn from the same CMS NPPES roster as Rubenstein.
One of 37 Hospitalist Physician providers enrolled in Rhode Island, 11 are shown on this page.
Dr. George Giffault
D.O.
Westerly, RI
Dr. Duane Golomb
MD
Warwick, RI
Dr. Manoj Gurung
MD
Warwick, RI
Dr. Neima Hadi
M.D.
Wakefield, RI
Dr. Melvin Joice
MD
Providence, RI
Compare Hospitalist Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Louis Rubenstein, MD's specialty? ▼
Louis Rubenstein, MD specializes in Hospitalist Physician and practices in Wakefield, Rhode Island. Credentials: MD.
How much does Louis Rubenstein, MD prescribe under Medicare Part D? ▼
In 2024, Louis Rubenstein, MD wrote 158 Medicare Part D claims totaling $14K in drug costs for 74 beneficiaries.
Where is Louis Rubenstein, MD located? ▼
Louis Rubenstein, MD is located at 100 KENYON AVE, Wakefield, RI, 02879. Phone: (401) 782-8000.
What is Louis Rubenstein, MD's NPI number? ▼
Louis Rubenstein, MD's National Provider Identifier (NPI) is 1790725919, issued on 06/07/2006.
Does Louis Rubenstein, MD prescribe more brand-name or generic drugs? ▼
Louis Rubenstein, MD's prescribing is 16% brand-name and 84% generic drugs by claim count, with $12K in brand drug costs.
How many Hospitalist Physician providers are there in the US? ▼
There are 17,950 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 940 Medicare Part D claims per year.
What drugs does Louis Rubenstein, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Louis Rubenstein, MD's most frequently prescribed drugs include Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Louis Rubenstein, MD accept Medicare? ▼
Louis Rubenstein, MD appears in CMS Medicare data with 158 Part D claims and 74 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Louis Rubenstein, MD's credentials? ▼
Louis Rubenstein, MD's NPI is 1790725919 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.