NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1902900319 MD
Verify on CMS → Mohamad Alzein, MD
Internal Medicine 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 172,737 in 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
4K
Medicare Part D claims · 474 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
87%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
8.8/100
▼ 74 pts below national avg 83.1 · Penalty band
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
Mohamad Alzein, MD reported a CMS MIPS final score of 8.8/100 - below the 83.1 national average - and filed 3,941 Medicare Part D claims in 2023.
- 8.8/100
- MIPS score · -74 vs avg
- 4K
- Part D claims, 2023
- 87%
- 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.
Mohamad Alzein, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
9 2nd percentile higher than 2% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Mohamad Alzein, MD sits
This provider among internal medicine physician peers
Across the 36,260 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Mohamad Alzein, MD writes more Part D claims than 76% of them and scores higher on MIPS quality than 1% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one internal medicine physician peer from a representative sample of 60; the gold marker is Mohamad Alzein, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Mohamad Alzein, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Mohamad Alzein, MD?
Below national averagePrimary specialty
Internal Medicine Physician
Medicare Part D claims
3,941 45% vs specialty avg
MIPS final score
8.8/100 74.3 pts vs avg
Specialty distribution in Illinois
How Internal Medicine Physician compares to other specialties among Illinois providers
Medicare quality performance, MIPS
Mohamad Alzein, MD's 2023 MIPS final score plotted against the Internal Medicine Physician national average
- MIPS Final Score
- 8.8/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Internal Medicine Physician) - 8.8/100 vs national avg 83.1
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).
Mohamad Alzein, MD appears in the CMS NPPES registry as an Internal Medicine Physician provider holding MD credentials at 5907 W 63RD ST, Chicago, IL, 60638, with a listed phone of (773) 585-4032. NPI 1902900319 was issued on 09/08/2006.
Medicare Part D records for calendar year 2023 show 3,941 prescription claims written by this provider, covering 474 Medicare beneficiaries and totaling roughly $308K in drug spend, split 11% brand-name and 87% generic by claim count, with an opioid prescribing rate of 3.8%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 8.8/100 for the 2023 performance year (Quality 0, Cost 29.2), compared with the national average of 83.1.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,737 enrolled providers across 56 states and an average of 2,716 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 | 1902900319 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 09/08/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
8.7566
Final Score
Avg: 83.1
0
Quality
29.1885
Cost
Reporting: Individual
Hospital and facility affiliations
Facilities where Mohamad Alzein, MD 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.
Advanced Urgent Care Ltd
Orland Park, IL
Sinai Medical Centers Ltd
Orland Park, 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).
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 Mohamad Alzein, MD. To verify Mohamad Alzein, MD'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
Mohamad Alzein, MD - brand share 11.0%
Internal Medicine Physician average
11% brand-name claims vs 87% generic, on 3,941 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.
3,941
Total Claims
$308K
Total Drug Cost
474
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,857
- Total Day Supply
- 213,271
- Brand vs Generic
- 11% brand / 87% generic
- Brand Drug Cost
- $242K
- Generic Drug Cost
- $62K
- Opioid Claims
- 151 (3.8% rate)
- Antibiotic Claims
- 379
Patient Demographics
- Average Patient Age
- 71.8 years
- Avg HCC Risk Score
- 1.17
- Gender Split
- 55% female / 45% male
- Age Distribution
- <65: 53, 65-74: 235, 75-84: 157, 85+: 29
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mohamad Alzein, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisone
Prednisone
356 claims
- Atorvastatin Calcium
Atorvastatin Calcium
210 claims
- Azithromycin
Azithromycin
165 claims
- Metformin Hcl
Metformin Hcl
145 claims
- Amlodipine Besylate 131
Amlodipine Besylate
131 claims
- Pantoprazole Sodium 121
Pantoprazole Sodium
121 claims
- Levothyroxine Sodium 94
Levothyroxine Sodium
94 claims
- Gabapentin 80
Gabapentin
80 claims
| Drug | Claims |
|---|---|
| Prednisone | 356 |
| Atorvastatin Calcium | 210 |
| Azithromycin | 165 |
| Metformin Hcl | 145 |
| Amlodipine Besylate | 131 |
| Pantoprazole Sodium | 121 |
| Levothyroxine Sodium | 94 |
| Gabapentin | 80 |
| Amoxicillin | 73 |
| Losartan Potassium | 71 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Mohamad Alzein, MD fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Mohamad Alzein, MD's 3,941 claims are above the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Alzein.
Dr. Hasan Abad
D.O.
Chicago, IL
Dr. Peter Abadeer
D.O.
Bloomington, IL
Dr. Pamela Abadi
D.O.
Winfield, IL
Dr. Motaz Abas
MD
Peoria, IL
Dr. Estefania Abasolo Lopez
MD
Chicago, IL
Compare Internal Medicine 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 Internal Medicine 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 Mohamad Alzein, MD's specialty? ▼
Mohamad Alzein, MD specializes in Internal Medicine Physician and practices in Chicago, Illinois. Credentials: MD.
How much does Mohamad Alzein, MD prescribe under Medicare Part D? ▼
In 2023, Mohamad Alzein, MD wrote 3,941 Medicare Part D claims totaling $308K in drug costs for 474 beneficiaries.
What is Mohamad Alzein, MD's Medicare quality score? ▼
Mohamad Alzein, MD has a CMS MIPS Final Score of 8.8/100 (Quality: 0, Cost: 29.2). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Mohamad Alzein, MD located? ▼
Mohamad Alzein, MD is located at 5907 W 63RD ST, Chicago, IL, 60638. Phone: (773) 585-4032.
What is Mohamad Alzein, MD's NPI number? ▼
Mohamad Alzein, MD's National Provider Identifier (NPI) is 1902900319, issued on 09/08/2006.
Does Mohamad Alzein, MD prescribe more brand-name or generic drugs? ▼
Mohamad Alzein, MD's prescribing is 11% brand-name and 87% generic drugs by claim count, with $242K in brand drug costs.
Does Mohamad Alzein, MD prescribe opioids? ▼
Yes, Mohamad Alzein, MD had 151 opioid claims in 2023 with an opioid prescribing rate of 3.8%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Mohamad Alzein, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Mohamad Alzein, MD's most frequently prescribed drugs include Prednisone, Atorvastatin Calcium, Azithromycin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mohamad Alzein, MD accept Medicare? ▼
Mohamad Alzein, MD appears in CMS Medicare data with 3,941 Part D claims and 474 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mohamad Alzein, MD's credentials? ▼
Mohamad Alzein, MD's NPI is 1902900319 with credentials MD. 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.