John J Hewett, MD
Vascular & Interventional Radiology
John J Hewett is a Vascular & Interventional Radiology specialist based in Irvine, CA with over 30 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
John J Hewett, MD has been part of the Irvine medical community since 2006 in group practice. He graduated from University of California, San Francisco School of Medicine in 1996 and has 30+ years of clinical experience. Among his Medicare patients, common conditions include hypertension, high cholesterol, and diabetes (per CMS data). CMS MIPS quality score: 100/100 (2023).
At a glance
- Federal MIPS score higher than 93% of MIPS-scored doctors in California
- Virtual visits available — no app or travel required
Recent · 81dNPPES updated 2026-03-03 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
1400 Reynolds Ave Ste 110, Irvine, CA 92614-5562
How Does This Doctor Compare?
Based on Medicare data, this doctor scores better than 93% of doctors in California on federal quality measures.
MIPS Score
2023100/100
California avg: 78.6 · US avg: 83.6
✓ Higher than most doctors nationally(+16.4 pts)
Top 7% of MIPS-scored doctors in CaliforniaHow the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Generic Rx
↑ Higher = better28.1%
California avg: 83.3 · US avg: 82.8
⚠ Lower than most doctors nationally(-54.7 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
545
Unique beneficiaries
High volumePrescription Recipients
86
Patients prescribed
Prescriptions Written
185
Total claims
Total Medicare drug cost: $148k
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 (+23%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↑ More patients than average (+7%) — 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 (+20%) — a focus area for this doctor
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↑ More patients than average (+8%) — a focus area for this doctor
Disrupted blood supply to the brain, requiring urgent medical attention
US avg: 13.4%↑ More patients than average (+19%) — a focus area for this doctor
The heart cannot pump blood efficiently enough to meet the body's needs
US avg: 22.5%↑ More patients than average (+9%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$9.0k received from industry
37 transactions reported in 2024 ·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 John J Hewett's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1996
University of California, San Francisco School of Medicine
Board certified · Mar 2, 2026
Self-reported via NPPES
30 years in practice
Senior practitioner
A radiologist who diagnoses and treats diseases by various radiologic imaging modalities. These include fluoroscopy, digital radiography, computed tomography, sonography and magnetic resonance imaging.
Taxonomy: 2085R0204X
Education & Training
University of California, San Francisco School of Medicine (Class of 1996)
Mailing address
1400 Reynolds Ave Ste 200, Irvine, CA 92614-5563
Differs from practice location
Primary hospital affiliation: Critical Access Hospitals
CMS Certification Number: 191308
View hospital on Medicare Care CompareVirtual Vascular & Interventional Radiology Care With John J Hewett
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with John J Hewett for blood pressure monitoring, cholesterol management, diabetes check-ins — no travel to Irvine 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 John J Hewett
NPI records show Dr. Hewett as active with telehealth listed in Irvine, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (949) 387-4724.
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 John J Hewett
Practice Location
1400 Reynolds Ave Ste 110, Irvine, CA 92614-5562
Mailing Address
1400 Reynolds Ave Ste 200, Irvine, CA 92614-5563
This is a provider directory. Contact the office directly to schedule appointments.
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