Medicare Enrolled
Dr. Mazen Mahjoub, MD
Optician · Warren, OH
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Low-engagement
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Mahjoub from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Mahjoub
Dr. Mazen Mahjoub is an optician specialist in Warren, OH, with 20 years of NPI registration. Based on federal Medicare data, Dr. Mahjoub performed 15,446 Medicare services across 5,203 unique beneficiaries.
Between the years covered by Open Payments, Dr. Mahjoub received a total of $9,623 from 30 pharmaceutical and/or device companies across 634 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in optician. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Mahjoub is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 20 years in practice
▲ Top 2% volume in OH
$9,623 industry payments
Medicare Practice Summary
Medicare Utilization ↗15,446
Medicare services
Top 2% in OH for optician
5,203
Unique beneficiaries
$36
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~772 Medicare services per year of practice
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Adenosine injection, 1 mg Administration of a 1 mg dose of adenosine medication. This code is specifically for adenosine and excludes adenosine phosphate compounds. |
8,325 | $0 | $1 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
1,445 | $86 | $148 |
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
1,364 | $10 | $35 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
1,249 | $61 | $125 |
| Technetium Tc-99m sestamibi diagnostic injection A diagnostic injection of technetium Tc-99m sestamibi used for imaging studies. |
692 | $43 | $79 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
463 | $140 | $325 |
| Nuclear stress test of heart muscle A nuclear medicine imaging test that evaluates blood flow to the heart muscle at rest and during stress using a special camera. |
349 | $320 | $600 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while monitoring the electrocardiogram under physician supervision and review. |
349 | $46 | $150 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
343 | $98 | $180 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
193 | $111 | $208 |
| Pacemaker system evaluation Assessment of a pacemaker device, including single, dual, multiple lead, or leadless systems. |
147 | $36 | $65 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
85 | $57 | $102 |
| Cardiac catheterization | 63 | $220 | $500 |
| External shock to heart to regulate heart beat A procedure that delivers an electric shock to the heart from outside the body to restore a normal heart rhythm. |
52 | $81 | $250 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while an electrocardiogram is monitored under physician supervision. |
49 | $16 | $38 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while monitoring the electrocardiogram, with physician review of the results. |
49 | $11 | $38 |
| Continuous ECG monitoring, up to 30 days Continuous heart rhythm monitoring for up to 30 days, including professional review and reporting of the results. |
48 | $19 | $50 |
| 30-day continuous ECG with patient-triggered event transmission and review This procedure involves continuous electrocardiogram monitoring for up to 30 days, including the transmission of patient-triggered events. A healthcare professional reviews the data and provides a report. |
48 | $606 | $900 |
| EKG interpretation and report A standard electrocardiogram test that records the heart's electrical activity using at least 12 leads. The service includes a professional interpretation of the results and a written report. |
43 | $6 | $25 |
| Smoking cessation counseling, 4-10 minutes A brief counseling session focused on helping patients quit smoking and tobacco use. The provider spends 4 to 10 minutes discussing strategies and support for cessation. |
31 | $14 | $20 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
23 | $92 | $150 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
21 | $134 | $210 |
| Hospital discharge day management, 30 minutes or less This service covers the final day of hospital care when the patient is being discharged. It includes coordination of care and instructions for the patient within a time frame of 30 minutes or less. |
15 | $62 | $97 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
4.4% high complexity
63.5% medium
32.1% routine
Industry Payment Transparency
Open Payments through 2024 ↗$9,623
Total received (2018-2024)
Avg $1,375/year across 7 years
Top 13% in OH for optician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
30
Companies
634
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$9,499 (98.7%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$124 (1.3%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,375
2023
$1,345
2022
$1,463
2021
$1,389
2020
$825
2019
$1,554
2018
$1,673
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Novartis Pharmaceuticals Corporation
$288
Merck Sharp & Dohme LLC
$177
AstraZeneca Pharmaceuticals LP
$169
Janssen Pharmaceuticals, Inc
$150
E.R. Squibb & Sons, L.L.C.
$145
Boehringer Ingelheim Pharmaceuticals, Inc.
$118
Novo Nordisk Inc
$117
Amgen Inc.
$67
Edwards Lifesciences Corporation
$37
PFIZER INC.
$34
ATRICURE, INC.
$20
SCPHARMACEUTICALS INC.
$19
Actelion Pharmaceuticals US, Inc.
$16
SANOFI-AVENTIS U.S. LLC
$16
Top 3 companies account for 46.1% of 2024 payments
All-time payments by company (2018-2024) ›
Janssen Pharmaceuticals, Inc
$1,292
AstraZeneca Pharmaceuticals LP
$1,186
Novartis Pharmaceuticals Corporation
$1,047
Boehringer Ingelheim Pharmaceuticals, Inc.
$876
Amgen Inc.
$791
E.R. Squibb & Sons, L.L.C.
$760
SANOFI-AVENTIS U.S. LLC
$679
Merck Sharp & Dohme LLC
$586
PFIZER INC.
$464
Merck Sharp & Dohme Corporation
$259
BOSTON SCIENTIFIC CORPORATION
$188
NOVARTIS PHARMACEUTICALS CORPORATION
$181
Gilead Sciences, Inc.
$172
Astellas Pharma US Inc
$168
Novo Nordisk Inc
$148
Boston Scientific Corporation
$145
Regeneron Healthcare Solutions, Inc.
$121
PORTOLA PHARMACEUTICALS, INC.
$110
Abbott Laboratories
$87
Esperion Therapeutics, Inc.
$67
Medtronic Vascular, Inc.
$65
Kestra Medical Technology Services, Inc.
$44
Edwards Lifesciences Corporation
$37
Kiniksa Pharmaceuticals, Ltd.
$33
Lundbeck LLC
$33
ATRICURE, INC.
$20
SCPHARMACEUTICALS INC.
$19
Lantheus Medical Imaging, Inc.
$18
Actelion Pharmaceuticals US, Inc.
$16
Allergan Inc.
$11
Top 3 companies account for 36.6% of all-time payments
Associated products mentioned in payments ›
Arcalyst · Assure WCD · BEVYXXA · BRILINTA · CAMZYOS · CHANTIX · CardioMEMS HF System · CoreValve Evolut · Corlanor · Definity · ELIQUIS · ENTRESTO · FARXIGA · FUROSCIX · HeartMate · JANUVIA · JARDIANCE · LEQVIO · LEXISCAN · LINZESS · MITRACLIP · MULTAQ · Mitra Clip system · NEXLETOL · NORTHERA · OPSUMIT · Ozempic · PRADAXA · PRALUENT · PRALUENT ALIROCUMAB INJECTION · Ranexa · Repatha · Rybelsus · SAPIEN 3 Ultra RESILIA · STEGLATRO · SYNERGY ABLATION SYSTEM · VERQUVO · VYNDAQEL · WATCHMAN · WATCHMAN Access System · WATCHMAN FLX · Wegovy · XARELTO
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Most payments (99%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Opticians within 10 mi
97
Per 100K population
48.2
County median income
$55,088
Nearest hospital
MH ST JOSEPH WARREN HOSPITAL
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Mahjoub is a mixed practice specialist, with above-average Medicare volume (top 2% in OH), with low-engagement industry engagement in the top 13% of OH peers, with 20 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Mahjoub experienced with adenosine injection, 1 mg?
Based on Medicare claims data, Dr. Mahjoub performed 8,325 adenosine injection, 1 mg services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Mahjoub receive payments from pharmaceutical companies?
Yes. Dr. Mahjoub received a total of $9,623 from 30 companies across 634 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Mahjoub's costs compare to other opticians in Warren?
Dr. Mahjoub's average Medicare payment per service is $36. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Mahjoub) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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