NPI registry status
Active
2026 NPPES data Neurology Physician NPI 1942289566 M.D.
Verify on CMS → Stephen Lewis, M.D.
Neurology Physician in Willow Grove, Pennsylvania.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 19,885 in Neurology 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 · 215 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
88%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$488.89
29 payments · CMS Open Payments (Sunshine Act)
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
Stephen Lewis, M.D. filed 3,984 Medicare Part D claims in 2023 as a Neurology Physician in Willow Grove, Pennsylvania, prescribing 88% generic.
- 4K
- Part D claims, 2023
- 88%
- generic prescribing
- $488.89
- 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.
Stephen Lewis, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,984 Top 9% higher than 91% 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)
Stephen Lewis, M.D. 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 Stephen Lewis, M.D.?
Quality data not reportedPrimary specialty
Neurology Physician
Medicare Part D claims
3,984 204% vs specialty avg
Specialty distribution in Pennsylvania
How Neurology Physician compares to other specialties among Pennsylvania 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 Neurology 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).
Stephen Lewis, M.D. appears in the CMS NPPES registry as a Neurology Physician provider holding M.D. credentials at 2300 COMPUTER RD, Willow Grove, PA, 19090, with a listed phone of (215) 659-3500. NPI 1942289566 was issued on 01/12/2006.
Medicare Part D records for calendar year 2023 show 3,984 prescription claims written by this provider, covering 215 Medicare beneficiaries and totaling roughly $2.0 million in drug spend, split 10% brand-name and 88% generic by claim count, with an opioid prescribing rate of 5.1%.
Neurology Physician is a mid-sized specialty nationwide, with 19,885 enrolled providers across 54 states and an average of 1,309 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 | 1942289566 |
|---|---|
| Specialty | Neurology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 01/12/2006 |
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 Stephen Lewis, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$489
Largest payer
SK Life Science, 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.
License & disciplinary context - Pennsylvania PA-BOM 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~45K Pennsylvania medical licensees in 2023 - they are NOT specific to Stephen Lewis, M.D.. To verify Stephen Lewis, M.D.'s current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases
PA-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Stephen Lewis, M.D. - brand share 10.0%
Neurology Physician average
10% brand-name claims vs 88% generic, on 3,984 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.
3,984
Total Claims
$2.0M
Total Drug Cost
215
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,843
- Total Day Supply
- 141,372
- Brand vs Generic
- 10% brand / 88% generic
- Brand Drug Cost
- $1.7M
- Generic Drug Cost
- $307K
- Opioid Claims
- 202 (5.1% rate)
Patient Demographics
- Average Patient Age
- 67.8 years
- Avg HCC Risk Score
- 1.53
- Gender Split
- 56% female / 44% male
- Age Distribution
- <65: 71, 65-74: 75, 75-84: 48, 85+: 21
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Stephen Lewis, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Risperidone
Risperidone
225 claims
- Clonazepam
Clonazepam
192 claims
- Divalproex Sodium
Divalproex Sodium
162 claims
- Quetiapine Fumarate
Quetiapine Fumarate
144 claims
- Gabapentin
Gabapentin
114 claims
- Topiramate
Topiramate
101 claims
- Lamotrigine
Lamotrigine
95 claims
- Levetiracetam
Levetiracetam
95 claims
| Drug | Claims |
|---|---|
| Risperidone | 225 |
| Clonazepam | 192 |
| Divalproex Sodium | 162 |
| Quetiapine Fumarate | 144 |
| Gabapentin | 114 |
| Topiramate | 101 |
| Lamotrigine | 95 |
| Levetiracetam | 95 |
| Escitalopram Oxalate | 79 |
| Oxycodone Hcl | 79 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Neurology Physician Overview
How Stephen Lewis, M.D. fits within the Neurology Physician landscape nationally.
19,885
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider
Stephen Lewis, M.D.'s 3,984 claims are above the specialty average of 1,309.
Nearby Neurology Physician Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Lewis.
Dr. Whitley Aamodt
M.D.
Philadelphia, PA
Dr. Brian Abaluck
MD
Malvern, PA
Dr. Rania Abou Elenein
MD
Huntingdon Valley, PA
Mary Abramczuk
Wilkes Barre, PA
Dr. Daniel Ackerman
M.D.
Bethlehem, PA
Compare Neurology 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 Pennsylvania medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Neurology 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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Frequently Asked Questions
What is Stephen Lewis, M.D.'s specialty? ▼
Stephen Lewis, M.D. specializes in Neurology Physician and practices in Willow Grove, Pennsylvania. Credentials: M.D..
How much does Stephen Lewis, M.D. prescribe under Medicare Part D? ▼
In 2023, Stephen Lewis, M.D. wrote 3,984 Medicare Part D claims totaling $2.0M in drug costs for 215 beneficiaries.
Where is Stephen Lewis, M.D. located? ▼
Stephen Lewis, M.D. is located at 2300 COMPUTER RD, Willow Grove, PA, 19090. Phone: (215) 659-3500.
What is Stephen Lewis, M.D.'s NPI number? ▼
Stephen Lewis, M.D.'s National Provider Identifier (NPI) is 1942289566, issued on 01/12/2006.
Does Stephen Lewis, M.D. prescribe more brand-name or generic drugs? ▼
Stephen Lewis, M.D.'s prescribing is 10% brand-name and 88% generic drugs by claim count, with $1.7M in brand drug costs.
Does Stephen Lewis, M.D. prescribe opioids? ▼
Yes, Stephen Lewis, M.D. had 202 opioid claims in 2023 with an opioid prescribing rate of 5.1%.
How many Neurology Physician providers are there in the US? ▼
There are 19,885 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does Stephen Lewis, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Stephen Lewis, M.D.'s most frequently prescribed drugs include Risperidone, Clonazepam, Divalproex Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Stephen Lewis, M.D. accept Medicare? ▼
Stephen Lewis, M.D. appears in CMS Medicare data with 3,984 Part D claims and 215 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Stephen Lewis, M.D.'s credentials? ▼
Stephen Lewis, M.D.'s NPI is 1942289566 with credentials M.D.. 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.
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 May 2026.