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 603 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
275
Medicare Part D claims · 36 beneficiaries · Vascular Neurology Physician avg: 389
Generic prescribing
89%
generic claims · 11% 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
Lester Leung, M.D. filed 275 Medicare Part D claims in 2024 as a Vascular Neurology Physician in Boston, Massachusetts, prescribing 89% generic.
- 275
- Part D claims, 2024
- 89%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥48th
- 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 Lester Leung, M.D.
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 1396060141), first enumerated 04/05/2010.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 275 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
- State context
State board disciplinary context
Massachusetts statewide board action statistics are published annually — these figures describe aggregate state activity, not Lester Leung, M.D.'s individual license status. Verify directly with the state medical board.
Source: BORIM annual report 2023
- 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.
CMS NPPES provider registry desk
NPI 1396060141 · Vascular Neurology Physician
NPI-10 · ENUM-MID · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1396060141
- ENUM-MID 2010
- TAX-NARROW 603
- RX-LIGHT 275
- BOOK-THIN 19 in Massachusetts
- PHOTO-ENUM Rajbeer Sangha, MD · 2010
Lester Leung, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
275 ≥ 48th percentile 48% 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)
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
275 29% 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).
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 11.0%
Vascular Neurology Physician average
11% brand-name claims vs 89% generic, on 275 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.
275
Total Claims
$47K
Total Drug Cost
36
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 549.567
- Total Day Supply
- 16,429
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $42K
- Generic Drug Cost
- $4K
Patient Demographics
- Average Patient Age
- 66.2 years
- Avg HCC Risk Score
- 2.04
- Gender Split
- 50% female / 50% male
- Age Distribution
- <65: 11, 65-74: 17, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Lester Leung, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Cilostazol
Cilostazol
53 claims
- Topiramate
Topiramate
26 claims
- Levetiracetam 20
Levetiracetam
20 claims
- Eliquis 19
Eliquis
19 claims
- Atorvastatin Calcium 16
Atorvastatin Calcium
16 claims
- Rosuvastatin Calcium 12
Rosuvastatin Calcium
12 claims
- Sumatriptan Succin… 11
Sumatriptan Succinate
11 claims
| Drug | Claims |
|---|---|
| Cilostazol | 53 |
| Topiramate | 26 |
| Levetiracetam | 20 |
| Eliquis Apixaban | 19 |
| Atorvastatin Calcium | 16 |
| Rosuvastatin Calcium | 12 |
| Sumatriptan Succinate | 11 |
* 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.
603
Vascular Neurology Physician Providers in US
47
States with Vascular Neurology Physician
389
Avg Claims per Provider
Lester Leung, M.D.'s 275 claims are below the specialty average of 389.
Nationwide Vascular Neurology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Leung, both outside Massachusetts so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2010)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
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.
One of 19 Vascular Neurology Physician providers enrolled in Massachusetts, 5 are shown here.
Dr. Adel Alhazzani
M.D
Boston, MA
Dr. Hakan Ay
MD
Charlestown, MA
Dr. Metin Bicen
MD
Worcester, MA
Dr. Gustavo Carvajal
MD
Boston, MA
Dr. Anna Cervantes-Arslanian
M.D.
Boston, MA
Compare Vascular Neurology Physician nationally: see state-by-state distribution →
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 2024, Lester Leung, M.D. wrote 275 Medicare Part D claims totaling $47K in drug costs for 36 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 11% brand-name and 89% generic drugs by claim count, with $42K in brand drug costs.
How many Vascular Neurology Physician providers are there in the US? ▼
There are 603 Vascular Neurology Physician providers across 47 states in the US. The average Vascular Neurology Physician provider writes 389 Medicare Part D claims per year.
What drugs does Lester Leung, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Lester Leung, M.D.'s most frequently prescribed drugs include Cilostazol, Topiramate, Levetiracetam. 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 275 Part D claims and 36 Medicare beneficiaries in 2024. 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 (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.