Mazen Hashisho, M.D.
Mazen Hashisho is a Vascular Surgery specialist based in Garden Grove, CA with over 28 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: GENERAL SURGERY, THORACIC SURGERY
With over 28 years in surgery, Mazen Hashisho, M.D. is a long-established vascular surgery specialist in Garden Grove. With 28+ years of experience, he has been practicing in the Garden Grove area. Among his Medicare patients, common conditions include hypertension, high cholesterol, and diabetes (per CMS data). CMS MIPS quality score: 85.89/100 (2023).
At a glance
- Uses generic medications more than 54% of reporting doctors in California
- Federal MIPS score higher than 62% of MIPS-scored doctors in California
- Virtual visits available — no app or travel required
Older · 2167dNPPES updated 2020-06-16 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
12555 Garden Grove Blvd Ste 403, Garden Grove, CA 92843-1903
How Does This Doctor Compare?
Based on Medicare data, this doctor has an average quality score compared to other doctors in California, favors affordable generic drugs over brand-name ones.
MIPS Score
202385.89/100
California avg: 78.6 · US avg: 83.6
✓ Higher than most doctors nationally(+2.3 pts)
Average range among MIPS-scored doctors in CaliforniaHow the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Opioid Rx
↓ Lower = better26.92%
California avg: 5.2 · US avg: 5.1
⚠ Lower than most doctors nationally(+21.8 pts)
26.92% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better88.5%
California avg: 83.3 · US avg: 82.8
✓ Higher than most doctors nationally(+5.7 pts)
Typical range among reporting doctors in CaliforniaHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
452
Unique beneficiaries
Standard volumePrescription Recipients
63
Patients prescribed
Prescriptions Written
130
Total claims
Total Medicare drug cost: $12k
Percentile rankings compared against 9,360 reporting peers in California.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Diabetes.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+32%) — a focus area for this doctor
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+23%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-8%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%The heart cannot pump blood efficiently enough to meet the body's needs
US avg: 22.5%↑ More patients than average (+10%) — a focus area for this doctor
Conditions affecting emotional state, including depression and bipolar disorder
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$31.5k received from industry
35 transactions reported in 2024 ·Very High tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Mazen Hashisho's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Board certified · Jun 15, 2020
Self-reported via NPPES
28 years in practice
Experienced
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
Taxonomy: 2086S0129X
Mailing address
5150 E Pacific Coast Hwy Ste 500, Long Beach, CA 90804-3328
Differs from practice location
Primary hospital affiliation: Critical Access Hospitals
CMS Certification Number: 191322
View hospital on Medicare Care CompareVirtual Vascular Surgery Care With Mazen Hashisho
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Mazen Hashisho for blood pressure monitoring, cholesterol management, diabetes check-ins — no travel to Garden Grove required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Mazen Hashisho
Dr. Hashisho is listed as active in the NPI registry with telehealth listed in Garden Grove, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (562) 506-0176.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact Mazen Hashisho
Practice Location
12555 Garden Grove Blvd Ste 403, Garden Grove, CA 92843-1903
Mailing Address
5150 E Pacific Coast Hwy Ste 500, Long Beach, CA 90804-3328
This is a provider directory. Contact the office directly to schedule appointments.
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