Jonathan A Rosaasen, M.D.
Jonathan A Rosaasen is a Family Medicine specialist based in Thousand Oaks, CA with over 24 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Jonathan a Rosaasen, M.D. has practiced family medicine for 24+ years, working in group practice. He graduated from Loma Linda University School of Medicine in 2002 and has 24+ years of clinical experience. He regularly sees Medicare patients with high cholesterol, hypertension, and arthritis (per CMS claims data).
At a glance
- Uses generic medications more than 59% of reporting doctors in California
- Virtual visits available — no app or travel required
Older · 1173dNPPES updated 2023-03-07 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
187 E Wilbur Rd # 100, Thousand Oaks, CA 91360-5572
How Does This Doctor Compare?
Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.
Opioid Rx
↓ Lower = better6.21%
California avg: 5.2 · US avg: 5.1
⚠ Lower than most doctors nationally(+1.1 pts)
6.21% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better89.1%
California avg: 83.3 · US avg: 82.8
✓ Higher than most doctors nationally(+6.3 pts)
Typical range among reporting doctors in CaliforniaHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
199
Unique beneficiaries
Standard volumePrescription Recipients
184
Patients prescribed
Prescriptions Written
1,915
Total claims
Total Medicare drug cost: $274k
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%↓ Fewer patients than average (-5%) — less common here
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-6%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-1%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ 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 (-13%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$1.6k received from industry
95 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 Jonathan a Rosaasen's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2002
Loma Linda University School of Medicine
Board certified · Oct 12, 2020
Self-reported via NPPES
24 years in practice
Experienced
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Taxonomy: 207Q00000X
Education & Training
Loma Linda University School of Medicine (Class of 2002)
Virtual Family Medicine Care With Jonathan a Rosaasen
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Jonathan a Rosaasen for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Thousand Oaks 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 Jonathan a Rosaasen
NPI records show Dr. Rosaasen as active with telehealth listed in Thousand Oaks, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (805) 492-1015.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact Jonathan a Rosaasen
Practice Location
187 E Wilbur Rd # 100, Thousand Oaks, CA 91360-5572
Mailing Address
187 E Wilbur Rd # 100, Thousand Oaks, CA 91360-5572
This is a provider directory. Contact the office directly to schedule appointments.
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