NPI registry status
Active
2026 NPPES data Sleep Medicine (Internal Medicine) Physician NPI 1992812572 M.D.
Verify on CMS → Essam Ansari, M.D.
Sleep Medicine (Internal Medicine) Physician in Methuen, 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 932 in Sleep Medicine (Internal 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
269
Medicare Part D claims · 59 beneficiaries · Sleep Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
0%
generic claims · 58% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$533.68
10 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Essam Ansari, M.D. filed 269 Medicare Part D claims in 2024 as a Sleep Medicine (Internal Medicine) Physician in Methuen, Massachusetts, prescribing 0% generic.
- 269
- Part D claims, 2024
- 0%
- 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 Essam Ansari, 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 1992812572), first enumerated 08/23/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 269 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
4 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$533.68 in reported industry payments (10 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
Massachusetts statewide board action statistics are published annually — these figures describe aggregate state activity, not Essam Ansari, 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 1992812572 · Sleep Medicine (Internal Medicine) Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1992812572
- ENUM-LEGACY 2006
- TAX-NARROW 932
- RX-LIGHT 269
- BOOK-THIN 17 in Massachusetts
- PHOTO-ENUM Amita Vasoya, D.O. · 2006
Essam Ansari, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
269 ≥ 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)
Essam Ansari, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 4 hospital affiliations - 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 Essam Ansari, M.D.?
Quality data not reportedPrimary specialty
Sleep Medicine (Internal Medicine) Physician
Medicare Part D claims
269 79% vs specialty avg
Specialty distribution in Massachusetts
How Sleep Medicine (Internal 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 Sleep Medicine (Internal 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 | 1992812572 |
|---|---|
| Specialty | Sleep Medicine (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 08/23/2006 |
Hospital and facility affiliations
Facilities where Essam Ansari, 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.
According to CMS billing records, Essam Ansari, M.D. is affiliated with 4 Medicare-billing facilities across 2 states.
Incare Lawrence, PLLC
North Andover, MA
Incare LLC
Coventry, RI
Incare Middleton, PLLC
North Andover, MA
New England Baptist Medical 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).
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 Essam Ansari, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$534
Largest payer
Inspire Medical Systems, 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 - 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 Essam Ansari, M.D.. To verify Essam Ansari, 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 · Brand-heavy
Essam Ansari, M.D. - brand share 58.0%
Sleep Medicine (Internal Medicine) Physician average
58% brand-name claims vs 0% generic, on 269 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.
269
Total Claims
$98K
Total Drug Cost
59
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 316.8
- Total Day Supply
- 8,439
- Brand vs Generic
- 58% brand / 0% generic
- Brand Drug Cost
- $85K
Patient Demographics
- Average Patient Age
- 70.4 years
- Avg HCC Risk Score
- 2.25
- Gender Split
- 56% female / 44% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Essam Ansari, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Trelegy Ellipta
Trelegy Ellipta
65 claims
- Budesonide 25
Budesonide
25 claims
- Albuterol Sulfate … 23
Albuterol Sulfate Hfa
23 claims
- Montelukast Sodium 23
Montelukast Sodium
23 claims
- Breo Ellipta 15
Breo Ellipta
15 claims
- Ipratropium-Albute… 14
Ipratropium-Albuterol
14 claims
- Breztri Aerosphere 13
Breztri Aerosphere
13 claims
- Anoro Ellipta 12
Anoro Ellipta
12 claims
| Drug | Claims |
|---|---|
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 65 |
| Budesonide | 25 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 23 |
| Montelukast Sodium | 23 |
| Breo Ellipta Fluticasone/Vilanterol | 15 |
| Ipratropium-Albuterol Ipratropium/Albuterol Sulfate | 14 |
| Breztri Aerosphere Budesonide/Glycopyr/Formoterol | 13 |
| Anoro Ellipta Umeclidinium Brm/Vilanterol Tr | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Sleep Medicine (Internal Medicine) Physician in MA →
All providers in Massachusetts →
Compare specialties →
Sleep Medicine (Internal Medicine) Physician Overview
How Essam Ansari, M.D. fits within the Sleep Medicine (Internal Medicine) Physician landscape nationally.
932
Sleep Medicine (Internal Medicine) Physician Providers in US
52
States with Sleep Medicine (Internal Medicine) Physician
1,288
Avg Claims per Provider
Essam Ansari, M.D.'s 269 claims are below the specialty average of 1,288.
Nationwide Sleep Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Ansari, both outside Massachusetts so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Sleep Medicine (Internal Medicine) Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Ansari.
One of 17 Sleep Medicine (Internal Medicine) Physician providers enrolled in Massachusetts, 5 are shown here.
Dr. Mushtaque Chachar
MD
New Bedford, MA
Dr. Susan Chang
MD
Boston, MA
Dr. Steven Davis
M.D.
Worcester, MA
Dr. Chloe Deng
D.O.
Auburn, MA
Dr. Stephen Derose
M.D., M.S.H.S.
Springfield, MA
Compare Sleep Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Essam Ansari, M.D.'s specialty? ▼
Essam Ansari, M.D. specializes in Sleep Medicine (Internal Medicine) Physician and practices in Methuen, Massachusetts. Credentials: M.D..
How much does Essam Ansari, M.D. prescribe under Medicare Part D? ▼
In 2024, Essam Ansari, M.D. wrote 269 Medicare Part D claims totaling $98K in drug costs for 59 beneficiaries.
Where is Essam Ansari, M.D. located? ▼
Essam Ansari, M.D. is located at 70 EAST ST, Methuen, MA, 01844. Phone: (781) 600-7599.
What is Essam Ansari, M.D.'s NPI number? ▼
Essam Ansari, M.D.'s National Provider Identifier (NPI) is 1992812572, issued on 08/23/2006.
Does Essam Ansari, M.D. prescribe more brand-name or generic drugs? ▼
Essam Ansari, M.D.'s prescribing is 58% brand-name and 0% generic drugs by claim count, with $85K in brand drug costs.
How many Sleep Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 932 Sleep Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Sleep Medicine (Internal Medicine) Physician provider writes 1,288 Medicare Part D claims per year.
What drugs does Essam Ansari, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Essam Ansari, M.D.'s most frequently prescribed drugs include Trelegy Ellipta, Budesonide, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Essam Ansari, M.D. accept Medicare? ▼
Essam Ansari, M.D. appears in CMS Medicare data with 269 Part D claims and 59 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Essam Ansari, M.D.'s credentials? ▼
Essam Ansari, M.D.'s NPI is 1992812572 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.