Medicare Enrolled
Dr. Mazen Hashisho, M.D.
Vascular Surgery Physician · Garden Grove, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Mixed 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. Hashisho 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. Hashisho
Dr. Mazen Hashisho is a vascular surgery physician in Garden Grove, CA, with 18 years of NPI registration. Based on federal Medicare data, Dr. Hashisho performed 2,492 Medicare services across 1,514 unique beneficiaries.
Between the years covered by Open Payments, Dr. Hashisho received a total of $67,571 from 25 pharmaceutical and/or device companies across 107 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in vascular surgery physician. Payments are distributed across multiple categories and often reflect legitimate professional engagement with the medical industry. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Hashisho 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.
✓ 18 years in practice
▲ Top 12% volume in CA
$67,571 industry payments
Medicare Practice Summary
Medicare Utilization ↗2,492
Medicare services
Top 12% in CA for vascular surgery physician
1,514
Unique beneficiaries
$394
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~138 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 |
|---|---|---|---|
| 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. |
584 | $107 | $358 |
| Additional sedation, per 15 minutes Administration of a drug to deepen sedation during a procedure. This code covers each additional 15-minute increment of sedation beyond the initial period. |
353 | $10 | $32 |
| 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. |
204 | $139 | $462 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in the arm or leg. The test uses sound waves to check blood flow and may include compression and other maneuvers. |
140 | $168 | $576 |
| Ultrasound guidance for blood vessel access Use of ultrasound imaging to help locate and access a blood vessel. This guidance assists healthcare providers in performing procedures such as inserting IV lines or drawing blood. |
120 | $36 | $117 |
| Sedation by physician, initial 15 minutes Administration of a drug to induce depression of consciousness by the physician performing a procedure. This code covers the initial 15 minutes of sedation for patients aged 5 years or older. |
119 | $47 | $152 |
| Ultrasound of leg arteries or grafts An imaging test that uses sound waves to create pictures of the blood vessels in the legs or any surgical grafts present. |
84 | $220 | $743 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in one arm or leg using compression and other maneuvers to assess blood flow and check for blockages. |
80 | $105 | $365 |
| Midazolam injection, per 1 mg Administration of midazolam hydrochloride, a sedative medication, measured in 1 mg increments. |
75 | $0 | $5 |
| Ultrasound of leg arteries or grafts An ultrasound exam that uses sound waves to create images of the arteries in one leg or any grafts present in that leg. |
73 | $117 | $376 |
| Injection, fentanyl citrate, 0.1 mg | 69 | $1 | $10 |
| Additional blood vessel ultrasound evaluation An ultrasound exam of a blood vessel that includes a radiologist's review. This code applies to each additional vessel evaluated beyond the initial one. |
68 | $157 | $494 |
| Chemical destruction of first incompetent vein with imaging guidance This procedure uses imaging guidance to chemically destroy the first incompetent vein in the arm or leg. |
57 | $1,500 | $5,411 |
| Arterial plaque removal, initial vessel A procedure to remove plaque buildup from an artery in the leg. This is performed on the first vessel treated during the session. |
47 | $8,423 | $28,697 |
| Ultrasound of blood vessel, initial vessel An ultrasound exam of a blood vessel that includes a radiologist's review of the initial vessel. |
44 | $928 | $3,048 |
| Chemical injection for multiple incompetent leg veins A procedure involving the injection of a chemical agent into several non-functioning veins in the leg. |
42 | $151 | $616 |
| Hemodialysis circuit intervention with balloon dilation A procedure to insert a needle or tube into a hemodialysis circuit and dilate the dialysis segment using a balloon, with radiological review. |
39 | $1,128 | $3,797 |
| Radiologist review of abdominal aorta and leg artery images A radiologist reviews images of the abdominal aorta and the arteries in both legs. This process involves analyzing the visual data to assess the condition of these blood vessels. |
31 | $141 | $454 |
| Arm vein relocation with artery connection for hemodialysis A surgical procedure to move a vein in the arm and connect it to an artery to create access for hemodialysis. |
26 | $511 | $1,811 |
| Arterial plaque removal in leg A procedure to remove plaque buildup from the arteries in the leg to restore blood flow. |
26 | $4,948 | $28,479 |
| Removal of tunneled central venous tube This procedure involves the removal of a catheter that has been surgically placed under the skin and threaded into a large vein. |
24 | $132 | $467 |
| Radiofrequency vein destruction, first vein A procedure to treat the first incompetent vein in the arm or leg using radiofrequency energy and imaging guidance. |
21 | $781 | $3,348 |
| Arterial plaque removal, each additional leg vessel This procedure involves the removal of plaque buildup from an additional artery in the leg during the same session. It is performed to restore blood flow in the treated vessel. |
21 | $976 | $3,158 |
| Ultrasound of head and neck blood flow, bilateral An ultrasound exam that uses sound waves to visualize and assess blood flow in the vessels of both the head and the neck. |
21 | $162 | $584 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
21 | $55 | $223 |
| Radiologist review of arm or leg artery image A radiologist reviews images of the arteries in the arm or leg. This process involves analyzing the visual data to assess the blood vessels. |
19 | $135 | $431 |
| Radiologist review of additional artery image A radiologist reviews an additional image of an artery. This step involves professional interpretation of the imaging data. |
17 | $89 | $284 |
| Balloon dilation of dialysis access with radiologist review A minimally invasive procedure to widen a narrowed section of a dialysis access vessel using a balloon catheter. The procedure includes review by a radiologist to ensure proper placement and effectiveness. |
16 | $561 | $1,809 |
| 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. |
14 | $147 | $525 |
| Revision of hemodialysis graft A procedure to repair or restore the function of a surgically created blood vessel connection used for hemodialysis. |
13 | $533 | $2,153 |
| Permanent blockage of hemodialysis circuit with radiologist review A procedure to permanently close off a hemodialysis circuit, including a review by a radiologist. |
12 | $1,862 | $5,876 |
| 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. |
12 | $65 | $141 |
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.
Industry Payment Transparency
Open Payments through 2024 ↗$67,571
Total received (2018-2024)
Avg $9,653/year across 7 years
Top 5% in CA for vascular surgery physician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
25
Companies
107
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.
Other
Charitable contributions, space rental, and other categories
$64,302 (95.2%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$3,270 (4.8%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$31,460
2023
$30,548
2022
$4,792
2021
$306
2020
$332
2019
$118
2018
$16
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
AngioDynamics, Inc.
$30,222
Bard Peripheral Vascular, Inc.
$279
Boston Scientific Corporation
$268
Medtronic, Inc.
$150
Janssen Biotech, Inc.
$125
Becton, Dickinson and Company
$108
LeMaitre Vascular, Inc.
$55
Tactile Systems Technology Inc
$51
Organogenesis Inc.
$34
Nevro Corp.
$32
MIMEDX Group, Inc.
$26
Urgo Medical North America, LLC
$25
Smith+Nephew, Inc.
$25
Merck Sharp & Dohme LLC
$23
Abbott Laboratories
$18
Mozarc Medical US LLC
$18
Top 3 companies account for 97.8% of 2024 payments
All-time payments by company (2018-2024) ›
AngioDynamics, Inc.
$64,302
Boston Scientific Corporation
$1,013
Medtronic, Inc.
$541
Bard Peripheral Vascular, Inc.
$379
Janssen Pharmaceuticals, Inc
$170
Tactile Systems Technology Inc
$160
BOSTON SCIENTIFIC CORPORATION
$138
Smith+Nephew, Inc.
$127
Janssen Biotech, Inc.
$125
Becton, Dickinson and Company
$108
CARDIVA MEDICAL, INC.
$76
BAXTER HEALTHCARE
$70
LeMaitre Vascular, Inc.
$55
Terumo Medical Corporation
$41
BARD PERIPHERAL VASCULAR, INC.
$35
Organogenesis Inc.
$34
Nevro Corp.
$32
MIMEDX Group, Inc.
$26
Urgo Medical North America, LLC
$25
Teleflex LLC
$24
Merck Sharp & Dohme LLC
$23
Abbott Laboratories
$18
Mozarc Medical US LLC
$18
ARGON MEDICAL DEVICES, INC.
$16
Covidien LP
$13
Top 3 companies account for 97.5% of all-time payments
Associated products mentioned in payments ›
ANGIOJET · ARTEGRAFT VASCULAR GRAFT · AURYON LASER SYSTEM 100-120 VAC · AngioJet Ultra 5000A · Atlas · Auryon Laser System 100-120 Vac · BRIDION · CARDIVA VASCADE 6/7F VCS · CARDIVA VASCADE MVP VVCS 6-12F · CHAMELEON · CLOSUREFAST · CLOSURERFS · Coyote ES · EkoSonic · FLEXITOUCH · Flexitouch Plus · GENERAL VASCULAR INTERVENTION · GENERAL - VASCULAR INTERVENTION · GLIDESHEATH SLENDER · GRAFIX · GRAFIX PL · GUIDELINER · General - Atherectomy · General - Ultrasound · General - Vascular Intervention · JETSTREAM SC · LUTONIX · LUTONIX Drug Coated Balloon · LifeStream · Lutonix Drug Coated Balloon · MUSTANG · Mahurkar · OPTION · Peripheral RotaLink Plus · Pristine · RESTOREFLOW · Ranger · Renal - PD · RotarexS 6 F x 135 cm · SIMPONI ARIA · STRAVIX · SUPERA · Senza · URGOK2 · VARITHENA · VENASEAL · VENOUS WALLSTENT · Venclose Maven Catheter · Venovo · WavelinQ · 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 →
Payments are distributed across multiple categories with no single dominant type. Total industry engagement is in the top 5% for vascular surgery physician in CA.
Geographic Context
Vascular surgery physicians within 10 mi
73
Per 100K population
2.3
County median income
$113,702
Nearest hospital
GARDEN GROVE HOSPITAL & 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 reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Hashisho is a clinical cardiology specialist, with above-average Medicare volume (top 12% in CA), with mixed engagement industry engagement in the top 5% of CA peers, with 18 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. Hashisho experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Hashisho performed 584 office visit, established patient (30-39 min) 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. Hashisho receive payments from pharmaceutical companies?
Yes. Dr. Hashisho received a total of $67,571 from 25 companies across 107 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. Hashisho's costs compare to other vascular surgery physicians in Garden Grove?
Dr. Hashisho's average Medicare payment per service is $394. 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. Hashisho) 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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