NPI registry status
Active
2026 NPPES data Rheumatology Physician NPI 1083136428 MD
Verify on CMS → Lewena Maher, MD
Rheumatology Physician in Riverside, 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 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
513
Medicare Part D claims · 135 beneficiaries · Rheumatology Physician avg: 2K
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Lewena Maher, MD filed 513 Medicare Part D claims in 2023 as a Rheumatology Physician in Riverside, Rhode Island, prescribing 94% generic.
- 513
- Part D claims, 2023
- 94%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Lewena Maher, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
513 Top 34% higher than 66% 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 certification likely (heuristic, not verified)
Lewena Maher, 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 Lewena Maher, MD?
Quality data not reportedPrimary specialty
Rheumatology Physician
Medicare Part D claims
513 75% vs specialty avg
Specialty distribution in Rhode Island
How Rheumatology 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 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).
Lewena Maher, MD appears in the CMS NPPES registry as a Rheumatology Physician provider holding MD credentials at 375 WAMPANOAG TRL, Riverside, RI, 02915, with a listed phone of (401) 649-4040. NPI 1083136428 was issued on 07/07/2017.
Medicare Part D records for calendar year 2023 show 513 prescription claims written by this provider, covering 135 Medicare beneficiaries and totaling roughly $326K in drug spend, split 6% brand-name and 94% generic by claim count, with an opioid prescribing rate of 6.0%.
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 | 1083136428 |
|---|---|
| Specialty | Rheumatology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 07/07/2017 |
Hospital and facility affiliations
Facilities where Lewena Maher, 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.
Brown Medicine
Riverside, 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 · Generic-heavy
Lewena Maher, MD - brand share 6.0%
Rheumatology Physician average
6% brand-name claims vs 94% generic, on 513 2023 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 2023.
513
Total Claims
$326K
Total Drug Cost
135
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,022
- Total Day Supply
- 29,808
- Brand vs Generic
- 6% brand / 94% generic
- Brand Drug Cost
- $311K
- Generic Drug Cost
- $15K
- Opioid Claims
- 31 (6.0% rate)
- Antibiotic Claims
- 11
Patient Demographics
- Average Patient Age
- 72.0 years
- Avg HCC Risk Score
- 1.40
- Gender Split
- 69% female / 31% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Lewena Maher, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisone
Prednisone
164 claims
- Hydroxychloroquine… 64
Hydroxychloroquine Sulfate
64 claims
- Duloxetine Hcl 47
Duloxetine Hcl
47 claims
- Methotrexate 43
Methotrexate
43 claims
- Allopurinol 39
Allopurinol
39 claims
- Hydrocodone-Acetam… 20
Hydrocodone-Acetaminophen
20 claims
- Colchicine 12
Colchicine
12 claims
- Gabapentin 11
Gabapentin
11 claims
| Drug | Claims |
|---|---|
| Prednisone | 164 |
| Hydroxychloroquine Sulfate | 64 |
| Duloxetine Hcl | 47 |
| Methotrexate Methotrexate Sodium | 43 |
| Allopurinol | 39 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 20 |
| Colchicine | 12 |
| Gabapentin | 11 |
| Meloxicam | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Rheumatology Physician Overview
How Lewena Maher, 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
Lewena Maher, MD's 513 claims are below the specialty average of 2,054.
Nearby Rheumatology Physician Providers in Rhode Island
Other clinicians with the same primary specialty enrolled in Rhode Island, drawn from the same CMS NPPES roster as Maher.
Dr. Saman Ali
M.D.
Woonsocket, RI
Dr. Brenda Burke
DO
Newport, RI
Dr. Christopher D'Arcy
M.D.
Westerly, RI
Dr. Deepan Dalal
MD, MPH
Cranston, RI
Dr. Ralph Digiacomo
MD
Warwick, RI
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 Rhode Island 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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Explore Rhode Island
Frequently Asked Questions
What is Lewena Maher, MD's specialty? ▼
Lewena Maher, MD specializes in Rheumatology Physician and practices in Riverside, Rhode Island. Credentials: MD.
How much does Lewena Maher, MD prescribe under Medicare Part D? ▼
In 2023, Lewena Maher, MD wrote 513 Medicare Part D claims totaling $326K in drug costs for 135 beneficiaries.
Where is Lewena Maher, MD located? ▼
Lewena Maher, MD is located at 375 WAMPANOAG TRL, Riverside, RI, 02915. Phone: (401) 649-4040.
What is Lewena Maher, MD's NPI number? ▼
Lewena Maher, MD's National Provider Identifier (NPI) is 1083136428, issued on 07/07/2017.
Does Lewena Maher, MD prescribe more brand-name or generic drugs? ▼
Lewena Maher, MD's prescribing is 6% brand-name and 94% generic drugs by claim count, with $311K in brand drug costs.
Does Lewena Maher, MD prescribe opioids? ▼
Yes, Lewena Maher, MD had 31 opioid claims in 2023 with an opioid prescribing rate of 6.0%.
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 Lewena Maher, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Lewena Maher, MD's most frequently prescribed drugs include Prednisone, Hydroxychloroquine Sulfate, Duloxetine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Lewena Maher, MD accept Medicare? ▼
Lewena Maher, MD appears in CMS Medicare data with 513 Part D claims and 135 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Lewena Maher, MD's credentials? ▼
Lewena Maher, MD's NPI is 1083136428 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.