Garrett S Matsunaga, M.D.
Garrett S Matsunaga is an Urology specialist based in Torrance, CA with over 26 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Garrett S Matsunaga, M.D. has been part of the Torrance medical community since 2006 in group practice. A University of Texas Medical School at San Antonio graduate since 2000, he brings 26+ years of experience. CMS Medicare data shows his patients commonly have high cholesterol, hypertension, and arthritis. CMS MIPS quality score: 84/100 (2023).
At a glance
- Prescribes opioids less than 39% of reporting doctors in California
- Federal MIPS score higher than 51% of MIPS-scored doctors in California
- Virtual visits available — no app or travel required
Older · 1672dNPPES updated 2021-10-25 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
20911 Earl St Ste 140, Torrance, CA 90503-4353
How Does This Doctor Compare?
Based on Medicare data, this doctor has an average quality score compared to other doctors in California, prescribes opioid pain medications conservatively.
MIPS Score
202384/100
California avg: 78.6 · US avg: 83.6
✓ Higher than most doctors nationally(+0.4 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 = better1.95%
California avg: 5.2 · US avg: 5.1
✓ Higher than most doctors nationally(-3.1 pts)
1.95% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Medicare Patients
1,719
Unique beneficiaries
High volumePrescription Recipients
511
Patients prescribed
Prescriptions Written
1,587
Total claims
Total Medicare drug cost: $232k
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 High Cholesterol, Hypertension, and Arthritis.
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+4%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-13%) — less common here
Diseases involving abnormal cell growth with potential to spread to other body parts
US avg: 20.8%↑ More patients than average (+8%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-6%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-6%) — less common here
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↓ Fewer patients than average (-6%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$1.6k received from industry
59 transactions reported in 2024 ·Moderate 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 Garrett S Matsunaga's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2000
Ut Health San Antonio Joe R. and Teresa Lozano Long School of Medicine
Board certified · Oct 24, 2021
Self-reported via NPPES
26 years in practice
Experienced
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.
Taxonomy: 208800000X
Education & Training
University of Texas Medical School at San Antonio (Class of 2000)
Mailing address
Po Box 845996, Los Angeles, CA 90084-5996
Differs from practice location
Primary hospital affiliation: Psychiatric
CMS Certification Number: 194102
View hospital on Medicare Care CompareVirtual Urology Care With Garrett S Matsunaga
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Garrett S Matsunaga for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Torrance 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 Garrett S Matsunaga
Dr. Matsunaga is listed as active in the NPI registry with telehealth listed in Torrance, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (310) 542-0199.
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 Garrett S Matsunaga
Practice Location
20911 Earl St Ste 140, Torrance, CA 90503-4353
Mailing Address
Po Box 845996, Los Angeles, CA 90084-5996
This is a provider directory. Contact the office directly to schedule appointments.
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