NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1942209804 M.D., M.P.H
Verify on CMS → Bennett Shamsai, M.D., M.P.H
Emergency Medicine Physician in Lynn, 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 64,463 in Emergency Medicine 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
56
Medicare Part D claims · 41 beneficiaries · Emergency Medicine Physician avg: 352
What the federal data shows
Bennett Shamsai, M.D., M.P.H filed 56 Medicare Part D claims in 2023 as an Emergency Medicine Physician in Lynn, Massachusetts.
- 56
- Part D claims, 2023
- ≥0th
- 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.
CMS NPPES provider registry desk
NPI 1942209804 · Emergency Medicine Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-TRACE · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1942209804
- ENUM-LEGACY 2005
- TAX-MEGA 64K Emergency Medicine
- RX-TRACE 56
- BOOK-LIGHT 1,722 in Massachusetts
- PHOTO-ENUM David Thomas · 2005
Bennett Shamsai, M.D., M.P.H's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
56 ≥ 0th percentile 0% of 1,370,886 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 · 2023
◑
Board-eligible specialty (heuristic, not verified)
Bennett Shamsai, M.D., M.P.H 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 Bennett Shamsai, M.D., M.P.H?
Quality data not reportedPrimary specialty
Emergency Medicine Physician
Medicare Part D claims
56 84% vs specialty avg
Specialty distribution in Massachusetts
How Emergency Medicine 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 Emergency Medicine 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 | 1942209804 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Credentials | M.D., M.P.H |
| Gender | Male |
| NPI Issued | 07/21/2005 |
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 Bennett Shamsai, M.D., M.P.H. To verify Bennett Shamsai, M.D., M.P.H'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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
56
Total Claims
$1K
Total Drug Cost
41
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 56
- Total Day Supply
- 424
- Generic Drug Cost
- $359
- Opioid Claims
- 11 (19.6% rate)
- Antibiotic Claims
- 12
Patient Demographics
- Average Patient Age
- 70.5 years
- Avg HCC Risk Score
- 1.75
- Gender Split
- 54% female / 46% male
Emergency Medicine Physician Overview
How Bennett Shamsai, M.D., M.P.H fits within the Emergency Medicine Physician landscape nationally.
64,463
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider
Bennett Shamsai, M.D., M.P.H's 56 claims are below the specialty average of 352.
Nationwide Emergency Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Shamsai, both outside Massachusetts so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Emergency Medicine Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Shamsai.
One of 1,722 Emergency Medicine Physician providers enrolled in Massachusetts, 5 are shown here.
Dr. Emily Aaronson
M.D.
Boston, MA
Dr. Menahem Abraham
M.D.
Beverly, MA
Dr. Matthew Adamo
DO
Falmouth, MA
Austin Adams
Boston, MA
Dr. Sapana Adhikari
M.D.
Boston, MA
Compare Emergency Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Bennett Shamsai, M.D., M.P.H's specialty? ▼
Bennett Shamsai, M.D., M.P.H specializes in Emergency Medicine Physician and practices in Lynn, Massachusetts. Credentials: M.D., M.P.H.
How much does Bennett Shamsai, M.D., M.P.H prescribe under Medicare Part D? ▼
In 2023, Bennett Shamsai, M.D., M.P.H wrote 56 Medicare Part D claims totaling $1K in drug costs for 41 beneficiaries.
Where is Bennett Shamsai, M.D., M.P.H located? ▼
Bennett Shamsai, M.D., M.P.H is located at 500 LYNNFIELD ST, Lynn, MA, 01904. Phone: (781) 477-3455.
What is Bennett Shamsai, M.D., M.P.H's NPI number? ▼
Bennett Shamsai, M.D., M.P.H's National Provider Identifier (NPI) is 1942209804, issued on 07/21/2005.
Does Bennett Shamsai, M.D., M.P.H prescribe opioids? ▼
Yes, Bennett Shamsai, M.D., M.P.H had 11 opioid claims in 2023 with an opioid prescribing rate of 19.6%.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 64,463 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
Does Bennett Shamsai, M.D., M.P.H accept Medicare? ▼
Bennett Shamsai, M.D., M.P.H appears in CMS Medicare data with 56 Part D claims and 41 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Bennett Shamsai, M.D., M.P.H's credentials? ▼
Bennett Shamsai, M.D., M.P.H's NPI is 1942209804 with credentials M.D., M.P.H. 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
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.