Ronald Mathiasen, MD
Ronald Mathiasen is an Otolaryngology specialist based in San Diego, CA with over 30 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Ronald Mathiasen, MD practices as part of a group otolaryngology specialist practice in San Diego, CA. He graduated from University of California, San Diego School of Medicine in 1996 and has 30+ years of clinical experience. He regularly sees Medicare patients with high cholesterol, hypertension, and arthritis (per CMS claims data).
Older · 4716dNPPES updated 2013-06-25 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
10670 Wexford St, San Diego, CA 92131-3940
How Does This Doctor Compare?
MIPS Score
202373.62/100
California avg: 78.6 · US avg: 83.6
⚠ Lower than most doctors nationally(-10 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Opioid Rx
↓ Lower = better12.55%
California avg: 5.2 · US avg: 5.1
⚠ Lower than most doctors nationally(+7.5 pts)
12.55% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Medicare Patients
94
Unique beneficiaries
Standard volumePrescription Recipients
76
Patients prescribed
Prescriptions Written
247
Total claims
Total Medicare drug cost: $8k
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 (+4%) — a focus area for this doctor
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-13%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-11%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-10%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$168 received from industry
3 transactions reported in 2024 ·Low 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 Ronald Mathiasen'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 Diego School of Medicine
30 years in practice
Senior practitioner
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.
Taxonomy: 207Y00000X
Education & Training
University of California, San Diego School of Medicine (Class of 1996)
Primary hospital affiliation: Critical Access Hospitals
CMS Certification Number: 181332
View hospital on Medicare Care CompareVirtual Otolaryngology Care With Ronald Mathiasen
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Ronald Mathiasen for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to San Diego 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 Ronald Mathiasen
Dr. Mathiasen is listed as active in the NPI registry with telehealth listed in San Diego, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (858) 621-4090.
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 Ronald Mathiasen
Practice Location
10670 Wexford St, San Diego, CA 92131-3940
Mailing Address
10670 Wexford St, San Diego, CA 92131-3940
This is a provider directory. Contact the office directly to schedule appointments.
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