NPI registry status
Active
2026 NPPES data Pulmonary Disease Physician NPI 1366537409 M.D.
Verify on CMS → Ibrahim Majzoub, M.D.
Pulmonary Disease Physician in Chicago, 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
444
Medicare Part D claims · 17 beneficiaries · Pulmonary Disease Physician avg: 1K
Generic prescribing
76%
generic claims · 24% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$278.18
4 payments · CMS Open Payments (Sunshine Act)
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
Ibrahim Majzoub, M.D. filed 444 Medicare Part D claims in 2023 as a Pulmonary Disease Physician in Chicago, Illinois, prescribing 76% generic.
- 444
- Part D claims, 2023
- 76%
- 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.
Ibrahim Majzoub, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
444 Top 38% higher than 62% 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)
Ibrahim Majzoub, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 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 Ibrahim Majzoub, M.D.?
Quality data not reportedPrimary specialty
Pulmonary Disease Physician
Medicare Part D claims
444 70% 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).
Ibrahim Majzoub, M.D. appears in the CMS NPPES registry as a Pulmonary Disease Physician provider holding M.D. credentials at 645 S CENTRAL AVE, Chicago, IL, 60644, with a listed phone of (847) 800-2824. NPI 1366537409 was issued on 10/04/2006.
Medicare Part D records for calendar year 2023 show 444 prescription claims written by this provider, covering 17 Medicare beneficiaries and totaling roughly $64K in drug spend, split 24% brand-name and 76% generic by claim count.
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 | 1366537409 |
|---|---|
| Specialty | Pulmonary Disease Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 10/04/2006 |
Hospital and facility affiliations
Facilities where Ibrahim Majzoub, 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.
Associates IN Pulmonary And Critical Care Ltd
Chicago, IL
Foundation For Outreach Services
Chicago, IL
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 Ibrahim Majzoub, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$278
Largest payer
Medtronic, 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 - 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 Ibrahim Majzoub, M.D.. To verify Ibrahim Majzoub, 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.
Brand vs generic prescribing mix · Typical
Ibrahim Majzoub, M.D. - brand share 24.0%
Pulmonary Disease Physician average
24% brand-name claims vs 76% generic, on 444 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.
444
Total Claims
$64K
Total Drug Cost
17
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 450
- Total Day Supply
- 8,390
- Brand vs Generic
- 24% brand / 76% generic
- Brand Drug Cost
- $44K
- Generic Drug Cost
- $20K
- Antibiotic Claims
- 25
Patient Demographics
- Average Patient Age
- 66.8 years
- Avg HCC Risk Score
- 3.48
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ibrahim Majzoub, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Potassium Chloride
Potassium Chloride
42 claims
- Eliquis
Eliquis
40 claims
- Famotidine
Famotidine
21 claims
- Methotrexate
Methotrexate
20 claims
- Quetiapine Fumarate
Quetiapine Fumarate
18 claims
- Atorvastatin Calcium
Atorvastatin Calcium
17 claims
- Spironolactone 16
Spironolactone
16 claims
- Acetylcysteine 15
Acetylcysteine
15 claims
| Drug | Claims |
|---|---|
| Potassium Chloride | 42 |
| Eliquis Apixaban | 40 |
| Famotidine | 21 |
| Methotrexate Methotrexate Sodium | 20 |
| Quetiapine Fumarate | 18 |
| Atorvastatin Calcium | 17 |
| Spironolactone | 16 |
| Acetylcysteine | 15 |
| Enoxaparin Sodium | 15 |
| Levetiracetam | 15 |
* 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 Ibrahim Majzoub, 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
Ibrahim Majzoub, M.D.'s 444 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 Majzoub.
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 Ibrahim Majzoub, M.D.'s specialty? ▼
Ibrahim Majzoub, M.D. specializes in Pulmonary Disease Physician and practices in Chicago, Illinois. Credentials: M.D..
How much does Ibrahim Majzoub, M.D. prescribe under Medicare Part D? ▼
In 2023, Ibrahim Majzoub, M.D. wrote 444 Medicare Part D claims totaling $64K in drug costs for 17 beneficiaries.
Where is Ibrahim Majzoub, M.D. located? ▼
Ibrahim Majzoub, M.D. is located at 645 S CENTRAL AVE, Chicago, IL, 60644. Phone: (847) 800-2824.
What is Ibrahim Majzoub, M.D.'s NPI number? ▼
Ibrahim Majzoub, M.D.'s National Provider Identifier (NPI) is 1366537409, issued on 10/04/2006.
Does Ibrahim Majzoub, M.D. prescribe more brand-name or generic drugs? ▼
Ibrahim Majzoub, M.D.'s prescribing is 24% brand-name and 76% generic drugs by claim count, with $44K in brand drug costs.
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 Ibrahim Majzoub, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Ibrahim Majzoub, M.D.'s most frequently prescribed drugs include Potassium Chloride, Eliquis, Famotidine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ibrahim Majzoub, M.D. accept Medicare? ▼
Ibrahim Majzoub, M.D. appears in CMS Medicare data with 444 Part D claims and 17 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ibrahim Majzoub, M.D.'s credentials? ▼
Ibrahim Majzoub, M.D.'s NPI is 1366537409 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.