NPI registry status
Active
2026 NPPES data Pulmonary Disease Physician NPI 1407875180 M.D
Verify on CMS → M Maher Najjar, M.D
Pulmonary Disease Physician in Northlake, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 9,323 in Pulmonary Disease 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
165
Medicare Part D claims · 32 beneficiaries · Pulmonary Disease Physician avg: 1K
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
M Maher Najjar, M.D filed 165 Medicare Part D claims in 2023 as a Pulmonary Disease Physician in Northlake, Illinois.
- 165
- Part D claims, 2023
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.
M Maher Najjar, M.D's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
165 35th percentile higher than 35% 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)
M Maher Najjar, 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 M Maher Najjar, M.D?
Quality data not reportedPrimary specialty
Pulmonary Disease Physician
Medicare Part D claims
165 89% vs specialty avg
Specialty distribution in Illinois
How Pulmonary Disease Physician compares to other specialties among Illinois 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 Pulmonary Disease 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).
M Maher Najjar, M.D appears in the CMS NPPES registry as a Pulmonary Disease Physician provider holding M.D credentials at 365 E NORTH AVE, Northlake, IL, 60164, with a listed phone of (708) 478-7201. NPI 1407875180 was issued on 07/19/2006.
Medicare Part D records for calendar year 2023 show 165 prescription claims written by this provider, covering 32 Medicare beneficiaries and totaling roughly $11K in drug spend.
Pulmonary Disease Physician is a mid-sized specialty nationwide, with 9,323 enrolled providers across 53 states and an average of 1,457 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 | 1407875180 |
|---|---|
| Specialty | Pulmonary Disease Physician |
| Credentials | M.D |
| Gender | Male |
| NPI Issued | 07/19/2006 |
License & disciplinary context - Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 - they are NOT specific to M Maher Najjar, M.D. To verify M Maher Najjar, M.D's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases
IDFPR 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 Illinois 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.
165
Total Claims
$11K
Total Drug Cost
32
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 165
- Total Day Supply
- 1,802
- Generic Drug Cost
- $11K
Patient Demographics
- Average Patient Age
- 66.5 years
- Avg HCC Risk Score
- 6.06
- Gender Split
- 34% female / 66% male
- Age Distribution
- <65: 12, 65-74: 12, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What M Maher Najjar, M.D prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ipratropium-Albute…
Ipratropium-Albuterol
60 claims
- Budesonide
Budesonide
37 claims
- Albuterol Sulfate
Albuterol Sulfate
26 claims
- Chlorhexidine Gluc… 20
Chlorhexidine Gluconate
20 claims
| Drug | Claims |
|---|---|
| Ipratropium-Albuterol Ipratropium/Albuterol Sulfate | 60 |
| Budesonide | 37 |
| Albuterol Sulfate | 26 |
| Chlorhexidine Gluconate | 20 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pulmonary Disease Physician Overview
How M Maher Najjar, M.D fits within the Pulmonary Disease Physician landscape nationally.
9,323
Pulmonary Disease Physician Providers in US
53
States with Pulmonary Disease Physician
1,457
Avg Claims per Provider
M Maher Najjar, M.D's 165 claims are below the specialty average of 1,457.
Nearby Pulmonary Disease Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Najjar.
Mohammed Abdalla
Park Ridge, IL
Dr. Mazen Abdel-Hadi
M.D.
Joliet, IL
Ayodeji Adegunsoye
Chicago, IL
Dr. Umama Adil
MD
Quincy, IL
Dr. Ahmed Agameya
M.D
Peoria, IL
Compare Pulmonary Disease 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 Illinois medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Pulmonary Disease 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 M Maher Najjar, M.D's specialty? ▼
M Maher Najjar, M.D specializes in Pulmonary Disease Physician and practices in Northlake, Illinois. Credentials: M.D.
How much does M Maher Najjar, M.D prescribe under Medicare Part D? ▼
In 2023, M Maher Najjar, M.D wrote 165 Medicare Part D claims totaling $11K in drug costs for 32 beneficiaries.
Where is M Maher Najjar, M.D located? ▼
M Maher Najjar, M.D is located at 365 E NORTH AVE, Northlake, IL, 60164. Phone: (708) 478-7201.
What is M Maher Najjar, M.D's NPI number? ▼
M Maher Najjar, M.D's National Provider Identifier (NPI) is 1407875180, issued on 07/19/2006.
How many Pulmonary Disease Physician providers are there in the US? ▼
There are 9,323 Pulmonary Disease Physician providers across 53 states in the US. The average Pulmonary Disease Physician provider writes 1,457 Medicare Part D claims per year.
What drugs does M Maher Najjar, M.D prescribe most often? ▼
Based on 2023 Medicare Part D data, M Maher Najjar, M.D's most frequently prescribed drugs include Ipratropium-Albuterol, Budesonide, Albuterol Sulfate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does M Maher Najjar, M.D accept Medicare? ▼
M Maher Najjar, M.D appears in CMS Medicare data with 165 Part D claims and 32 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify M Maher Najjar, M.D's credentials? ▼
M Maher Najjar, M.D's NPI is 1407875180 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.