NPI registry status
Active
2026 NPPES data Vascular Neurology Physician NPI 1396060141 M.D.
Verify on CMS → Lester Leung, M.D.
Vascular Neurology Physician in Boston, Massachusetts.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 561 in Vascular 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
303
Medicare Part D claims · 25 beneficiaries · Vascular Neurology Physician avg: 378
Generic prescribing
88%
generic claims · 12% 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
Lester Leung, M.D. filed 303 Medicare Part D claims in 2023 as a Vascular Neurology Physician in Boston, Massachusetts, prescribing 88% generic.
- 303
- Part D claims, 2023
- 88%
- 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.
Lester Leung, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
303 Top 43% higher than 57% 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)
Lester Leung, M.D. 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 Lester Leung, M.D.?
Quality data not reportedPrimary specialty
Vascular Neurology Physician
Medicare Part D claims
303 20% vs specialty avg
Specialty distribution in Massachusetts
How Vascular Neurology Physician compares to other specialties among Massachusetts 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 Vascular 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).
Lester Leung, M.D. appears in the CMS NPPES registry as a Vascular Neurology Physician provider holding M.D. credentials at 800 WASHINGTON ST, Boston, MA, 02111, with a listed phone of (617) 636-5848. NPI 1396060141 was issued on 04/05/2010.
Medicare Part D records for calendar year 2023 show 303 prescription claims written by this provider, covering 25 Medicare beneficiaries and totaling roughly $44K in drug spend, split 12% brand-name and 88% generic by claim count.
Vascular Neurology Physician is a narrow specialty nationwide, with 561 enrolled providers across 49 states and an average of 378 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 | 1396060141 |
|---|---|
| Specialty | Vascular Neurology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 04/05/2010 |
Hospital and facility affiliations
Facilities where Lester Leung, M.D. 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.
Pratt Neurology Associates Inc
Boston, MA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - Massachusetts BORIM 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 ~38K Massachusetts medical licensees in 2023 - they are NOT specific to Lester Leung, M.D.. To verify Lester Leung, M.D.'s current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases
BORIM 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 Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Lester Leung, M.D. - brand share 12.0%
Vascular Neurology Physician average
12% brand-name claims vs 88% generic, on 303 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.
303
Total Claims
$44K
Total Drug Cost
25
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 534
- Total Day Supply
- 15,954
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $39K
- Generic Drug Cost
- $6K
Patient Demographics
- Average Patient Age
- 64.4 years
- Avg HCC Risk Score
- 2.37
- Gender Split
- 52% female / 48% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Lester Leung, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Topiramate
Topiramate
36 claims
- Levetiracetam
Levetiracetam
27 claims
- Eliquis
Eliquis
21 claims
- Sumatriptan Succin…
Sumatriptan Succinate
18 claims
- Cilostazol
Cilostazol
17 claims
- Nortriptyline Hcl
Nortriptyline Hcl
17 claims
- Atorvastatin Calcium
Atorvastatin Calcium
15 claims
- Gabapentin
Gabapentin
15 claims
| Drug | Claims |
|---|---|
| Topiramate | 36 |
| Levetiracetam | 27 |
| Eliquis Apixaban | 21 |
| Sumatriptan Succinate | 18 |
| Cilostazol | 17 |
| Nortriptyline Hcl | 17 |
| Atorvastatin Calcium | 15 |
| Gabapentin | 15 |
| Amantadine Amantadine Hcl | 12 |
| Naproxen | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Vascular Neurology Physician Overview
How Lester Leung, M.D. fits within the Vascular Neurology Physician landscape nationally.
561
Vascular Neurology Physician Providers in US
49
States with Vascular Neurology Physician
378
Avg Claims per Provider
Lester Leung, M.D.'s 303 claims are below the specialty average of 378.
Nearby Vascular Neurology Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Leung.
Dr. Adel Alhazzani
M.D
Boston, MA
Dr. Hakan Ay
MD
Charlestown, MA
Dr. Gustavo Carvajal
MD
Boston, MA
Dr. Anna Cervantes-Arslanian
M.D.
Boston, MA
Dr. Claudia Chaves
M.D.
Newton, MA
Compare Vascular 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 Massachusetts medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Vascular 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 Lester Leung, M.D.'s specialty? ▼
Lester Leung, M.D. specializes in Vascular Neurology Physician and practices in Boston, Massachusetts. Credentials: M.D..
How much does Lester Leung, M.D. prescribe under Medicare Part D? ▼
In 2023, Lester Leung, M.D. wrote 303 Medicare Part D claims totaling $44K in drug costs for 25 beneficiaries.
Where is Lester Leung, M.D. located? ▼
Lester Leung, M.D. is located at 800 WASHINGTON ST, Boston, MA, 02111. Phone: (617) 636-5848.
What is Lester Leung, M.D.'s NPI number? ▼
Lester Leung, M.D.'s National Provider Identifier (NPI) is 1396060141, issued on 04/05/2010.
Does Lester Leung, M.D. prescribe more brand-name or generic drugs? ▼
Lester Leung, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $39K in brand drug costs.
How many Vascular Neurology Physician providers are there in the US? ▼
There are 561 Vascular Neurology Physician providers across 49 states in the US. The average Vascular Neurology Physician provider writes 378 Medicare Part D claims per year.
What drugs does Lester Leung, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Lester Leung, M.D.'s most frequently prescribed drugs include Topiramate, Levetiracetam, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Lester Leung, M.D. accept Medicare? ▼
Lester Leung, M.D. appears in CMS Medicare data with 303 Part D claims and 25 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Lester Leung, M.D.'s credentials? ▼
Lester Leung, M.D.'s NPI is 1396060141 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.