Medicare Enrolled
Dr. Maziar Mahjoobi, D.O.
Internal Medicine · Denison, TX
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Consulting-driven
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. Mahjoobi 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. Mahjoobi
Dr. Maziar Mahjoobi is an internal medicine specialist in Denison, TX, with 19 years of NPI registration. Based on federal Medicare data, Dr. Mahjoobi performed 7,752 Medicare services across 5,561 unique beneficiaries.
Between the years covered by Open Payments, Dr. Mahjoobi received a total of $100,411 from 66 pharmaceutical and/or device companies across 848 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in internal medicine. The majority of payments are for consulting, which typically reflects recognized clinical expertise sought by manufacturers. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Mahjoobi is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 19 years in practice
▲ Top 4% volume in TX
$100,411 industry payments
Medicare Practice Summary
Medicare Utilization ↗7,752
Medicare services
Top 4% in TX for internal medicine
5,561
Unique beneficiaries
$59
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~408 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 |
|---|---|---|---|
| EKG interpretation and report | 2,013 | $6 | $33 |
| Office visit, established patient (30-39 min) | 1,104 | $91 | $253 |
| Echocardiogram, transthoracic | 572 | $130 | $771 |
| Electrocardiogram (EKG), 12-lead | 371 | $10 | $76 |
| Regadenoson injection (Lexiscan) for heart stress test | 280 | $41 | $107 |
| Initial hospital admission, moderate complexity | 256 | $93 | $264 |
| Hospital follow-up visit, low complexity | 253 | $37 | $98 |
| Office visit, established patient (20-29 min) | 247 | $61 | $178 |
| Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days | 198 | $17 | $48 |
| Heart rhythm recording continous external ekg over more than 48 hours up to 7 days | 186 | $7 | $26 |
| Prothrombin time test (blood clotting) | 166 | $4 | $17 |
| Ultrasound of both sides of head and neck blood flow | 158 | $138 | $432 |
| Telephone, internet, or electronic health record assessment and management with written report by consulting physician, at least 5 minutes | 150 | $26 | $70 |
| Hospital follow-up visit, moderate complexity | 128 | $60 | $145 |
| Programming of dual lead pacemaker system | 113 | $25 | $149 |
| Remote pacemaker/defibrillator monitoring, 90 days | 110 | $13 | $67 |
| New patient office visit (45-59 min) | 104 | $122 | $327 |
| Cardiac catheterization | 84 | $162 | $885 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician | 82 | $47 | $305 |
| Remote pacemaker monitoring, 90 days | 82 | $17 | $78 |
| Technetium tc-99m sestamibi, diagnostic, per study dose | 74 | $85 | $751 |
| Nuclear medicine studies of heart muscle at rest and with stress and spect | 70 | $326 | $1,399 |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 64 | $9 | $37 |
| Initial hospital admission, high complexity | 63 | $128 | $380 |
| Coronary stent placement | 57 | $393 | $1,856 |
| Review by radiologist of abdominal aorta image | 55 | $51 | $288 |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 52 | $60 | $188 |
| Review by radiologist of both arms or legs arteries image | 50 | $70 | $323 |
| Ultrasound of heart with probe in esophagus, with report | 48 | $81 | $256 |
| Hospital discharge day management, 30 minutes or less | 39 | $62 | $150 |
| Review by radiologist of additional artery image | 38 | $36 | $91 |
| Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional | 32 | $17 | $51 |
| Ultrasound of leg arteries or artery grafts | 32 | $178 | $491 |
| Evaluation of cardiac rhythm monitor system, remote up to 30 days | 31 | $19 | $66 |
| Ultrasound evaluation of heart blood vessel during diagnosis or treatment, initial vessel | 31 | $54 | $188 |
| Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days | 28 | $22 | $146 |
| Evaluation of implantable heart and blood vessel monitoring system, remote up to 30 days | 27 | $14 | $57 |
| Repair of left upper heart chamber with implant with review by radiologist | 25 | $580 | $1,553 |
| Programming of multiple lead implantable defibrillator system | 21 | $45 | $123 |
| Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts | 21 | $101 | $453 |
| External shock to heart to regulate heart beat | 20 | $80 | $331 |
| Ultrasound of heart, follow-up | 19 | $71 | $213 |
| Ultrasound of heart blood flow, valves and chambers, follow-up | 19 | $17 | $100 |
| Removal of plaque in arteries of leg | 18 | $416 | $1,850 |
| Insertion of tube into abdominal, pelvic, or leg artery, initial third order branch | 16 | $223 | $628 |
| Review by radiologist of 1 arm or leg vein of 1 arm or leg image | 15 | $38 | $84 |
| Natriuretic peptide (heart and blood vessel protein) level | 15 | $38 | $85 |
| Ultrasound study of one arm or leg veins with compression and maneuvers | 15 | $84 | $270 |
| Review by radiologist of major lower body vein image | 14 | $41 | $160 |
| Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional | 14 | $16 | $45 |
| Ultrasound evaluation of heart blood vessel during diagnosis or treatment, each additional vessel | 13 | $39 | $142 |
| Insertion of tube into vena cava | 12 | $44 | $289 |
| Insertion of tube into abdominal, pelvic, or leg artery, initial second order branch | 12 | $195 | $905 |
| Removal and dissolving of blood clot from vein using fluoroscopic guidance, initial treatment | 12 | $272 | $2,292 |
| Insertion of tube in left lower heart chamber, coronary artery and bypass graft for diagnosis with review by radiologist | 12 | $180 | $1,267 |
| Ultrasound study of arm or leg veins with compression and maneuvers | 11 | $130 | $388 |
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.
14.4% high complexity
9.8% medium
75.8% routine
Industry Payment Transparency
Open Payments through 2024 ↗$100,411
Total received (2018-2024)
Avg $14,344/year across 7 years
Top 1% in TX for internal medicine
66
Companies
848
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.
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$43,477 (43.3%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$30,297 (30.2%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$26,637 (26.5%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$13,197
2023
$19,096
2022
$32,442
2021
$19,719
2020
$2,335
2019
$4,982
2018
$8,640
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Inari Medical, Inc.
$68,712
Medtronic Vascular, Inc.
$4,657
Medtronic, Inc.
$4,280
Boston Scientific Corporation
$2,279
Abbott Laboratories
$1,783
BOSTON SCIENTIFIC CORPORATION
$1,767
Terumo Medical Corporation
$1,597
ABIOMED
$1,354
EKOS Corporation
$1,181
Novartis Pharmaceuticals Corporation
$1,106
Siemens Medical Solutions USA, Inc.
$1,105
Baylis Medical Company Inc
$1,082
Cook Incorporated
$785
Philips Electronics North America Corporation
$731
E.R. Squibb & Sons, L.L.C.
$627
PFIZER INC.
$618
Janssen Pharmaceuticals, Inc
$455
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$417
Merck Sharp & Dohme LLC
$403
Stryker Corporation
$388
AstraZeneca Pharmaceuticals LP
$357
Gilead Sciences, Inc.
$351
Amgen Inc.
$342
Penumbra, Inc.
$333
Chiesi USA, Inc.
$322
Astellas Pharma US Inc
$314
Shockwave Medical, Inc
$295
Edwards Lifesciences Corporation
$223
AngioDynamics, Inc.
$190
CVRx, Inc.
$185
W. L. Gore & Associates, Inc.
$181
HEARTFLOW, INC.
$177
SANOFI-AVENTIS U.S. LLC
$177
Philips North America LLC
$142
Endologix LLC
$130
Bard Peripheral Vascular, Inc.
$120
Cook Medical LLC
$116
Cardiovascular Systems Inc.
$107
CHIESI USA, INC.
$98
Lantheus Medical Imaging, Inc.
$91
Acist Medical Systems, Inc.
$85
ZOLL Circulation Inc
$82
ZOLL Respicardia, Inc.
$77
HeartFlow, Inc.
$70
Boehringer Ingelheim Pharmaceuticals, Inc.
$66
ARALEZ PHARMACEUTICALS US INC.
$55
GlaxoSmithKline, LLC.
$43
Imperative Care, Inc
$41
Kiniksa Pharmaceuticals, Ltd.
$37
Kiniksa Pharmaceuticals International, plc
$34
Lexicon Pharmaceuticals, Inc.
$25
GE HealthCare
$22
Bolton Medical Inc
$18
Maquet Cardiovascular U.S. Sales, L.L.C.
$17
ShockWave Medical, Inc
$17
Osprey Medical Inc
$15
Relypsa, Inc.
$15
Contego Medical, Inc
$15
Intact Vascular, Inc.
$15
Merck Sharp & Dohme Corporation
$14
Itamar Medical Inc
$14
Cardinal Health 200 LLC
$13
Allergan Inc.
$13
Otsuka America Pharmaceutical, Inc.
$12
Kowa Pharmaceuticals America, Inc.
$12
Acerta Pharma LLC
$6
Top 3 companies account for 77.3% of total payments
Associated products mentioned in payments ›
(1661) Clin Edu IGT · (5027) Intact Vascular Und · (5055) Healthcare Und · (6321) Azurion 7 B20 DS Advance · (6554) Periph Vasc Undiv · (6554) Peripheral Vascular Undivided · (8874) inCourage · (9520) IGT Devices Undivided · (AM5) Lead management · (AZ7) Lasers · (BH4) IGT Devices Undivided · 3F · ABRE · ALPHAVAC · AMPLATZER · AMPLATZER AMULET · AMPLATZER Occluders · ANGIOJET · ANGIOVAC · AURYON LASER SYSTEM 100-120 VAC · AVEIR · AZUR CX DETACHABLE · Abre · Allure Quadra RF CRT Pacemaker · AngioVac · Arcalyst · Artis pheno · Assurity Pacemaker · Azure · BEXSERO · BRILINTA · BYSTOLIC · Barostim Neo System · C3 Delivery System · CAMZYOS · CARDENE · CARDIOMEMS · CHANTIX · CHROMOPHARE F300 · CLEVIPREX · COBALT DR MRI SURESCAN · CONCERTOTM · CONFIRM RX · COOK MEDICAL CELECT PLATINUM · COOK MEDICAL FILTERS · COOK MEDICAL IAA · COOK MEDICAL PERIPHERAL INTERVENTION · COOK MEDICAL ZILVER PTX · COREVALVE EVOLUT R · CT THROMBECTOMY SYSTEM KIT · CareLink · Claria MRI · Cobalt · Confirm Rx · Connectivity and Remote care · Cook Medical Catheters · Cook Medical Zilver PTX · CoreValve Evolut · Corlanor · Coronary Orbital Atherectomy System · Definity · Denali Vena Cava Filter · DyeVert · EKOSONIC · ELIQUIS · ENDOCROSS Device · ENTRESTO · EXCLUDER AAA Endoprosthesis · EXCLUDER Conformable AAA Endoprosthesis with Active Control · EXCLUDER Iliac Branch Endoprosthesis · Edwards SAPIEN 3 Transcatheter Heart Valve · Edwards SAPIEN 3 Ultra Transcatheter Heart Valve · Ellipse ICD · Ensite Cardiac Mapping System · FARXIGA · FFRct · FLOWTRIEVER CATHETER · FUSION BIOLINE · Fortify Assura · GALLANT · GENERAL TACHY · GENERAL - STENTS · GLIDESHEATH SLENDER · GORE VIABAHN VBX Balloon Expandable Endo · General - Stents · General - Structural Heart · HAWKONE · HawkOne · HeartWare HVAD · IGT D Peripheral · IN.PACT ADMIRAL · IN.PACT AV · IN.PACT Admiral · Impella · Indigo · Inpefa · JARDIANCE · JOT DX · KENGREAL · KENGREAL 50MG/10ML L · KYPHON EXPRESS II KYPHOPAK TRAY · LEQVIO · LEXISCAN · LifeVest · Livalo · MAMBA · METACROSS OTW · MICRA · MITRACLIP · MULTAQ · MYCARELINK · Merlin Connectivity and Remote · Micra · Multix Fusion · MyCareLink · MynxGrip Vascular Closure Device · NC TREK NEO · NRG needle · ONYX FRONTIER · OPTICROSS · OSTEOCOOL RF ABLATION SYSTEM · Occluders · PEDIARIX · PERCLOSE PROGLIDE · POLARIS · PRALUENT · PRODIGY CATHETER · Pacemakers · Penumbra System · Perclose ProGlide suture mediated closure system · Peripheral Orbital Atherectomy System · Polaris Ultra · QT Vascular Chocolate PTA Balloon · Quadra Allure MP RF CRT Pacemkr · Quadra Assura CRT Defibrillator · RESOLUTE ONYX · ROTABLATOR · RXi Systems · Ranexa · Repatha · Resolute · Reveal LINQ · S · SAMSCA · SAPIEN 3 Ultra RESILIA · SPECT Symbia Evo · Supera peripheral stent system · TELESCOPE · THORATEC HEARTMATE 3 LVAS IMPLANT KIT · TRAcelet · TREO ABDOMINAL STENT-GRAFT SYSTEM · Tack Endovascular System · Telescope · Temperature Management System · VERQUVO · VYNDAQEL · Vascular Lithotripsy · Veltassa · WATCHMAN · WATCHMAN Access System · WATCHMAN FLX · WOLVERINE · WatchPATONE · XARELTO · XIENCE SKYPOINT · Xact carotid stent system · ZONTIVITY · remede System
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 →
The majority of payments (43%) are consulting fees, which typically reflect recognized clinical expertise sought by manufacturers. Total industry engagement is in the top 1% for internal medicine in TX.
Equivalent to $1,295 per 100 Medicare services performed
Geographic Context
Internal medicine physicians within 10 mi
52
Per 100K population
37.1
County median income
$70,455
Nearest hospital
TEXOMA MEDICAL CENTER
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 measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. Mahjoobi is a clinical cardiology specialist, with above-average Medicare volume (top 4% in TX), with consulting-driven industry engagement in the top 1% of TX peers, with 19 years of NPI registration.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
Is Dr. Mahjoobi experienced with ekg interpretation and report?
Based on Medicare claims data, Dr. Mahjoobi performed 2,013 ekg interpretation and report 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. Mahjoobi receive payments from pharmaceutical companies?
Yes. Dr. Mahjoobi received a total of $100,411 from 66 companies across 848 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. Mahjoobi's costs compare to other internal medicine physicians in Denison?
Dr. Mahjoobi's average Medicare payment per service is $59. 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. Mahjoobi) 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. The Transparency Score measures 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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