Eugene Jay Yoon, M.D.
Gastroenterology Internal Medicine
Eugene Jay Yoon is a Gastroenterology Internal Medicine specialist based in Fullerton, CA with over 25 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Eugene Jay Yoon, M.D. has practiced internal medicine for 25+ years, working in group practice. Trained at University of Virginia School of Medicine (class of 2001), he has been practicing for over 25 years. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and arthritis.
At a glance
- Prescribes opioids less than 35% of reporting doctors in California
- Virtual visits available — no app or travel required
Older · 577dNPPES updated 2024-10-24 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
1837 Sunny Crest Dr, Fullerton, CA 92835-3616
How Does This Doctor Compare?
Based on Medicare data, this doctor prescribes opioid pain medications conservatively.
Opioid Rx
↓ Lower = better2.38%
California avg: 5.2 · US avg: 5.1
✓ Higher than most doctors nationally(-2.7 pts)
2.38% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Medicare Patients
519
Unique beneficiaries
High volumePrescription Recipients
300
Patients prescribed
Prescriptions Written
1,133
Total claims
Total Medicare drug cost: $847k
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 Arthritis.
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
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↑ More patients than average (+1%) — 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 (-3%) — less common here
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+1%) — a focus area for this doctor
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-8%) — less common here
Weakened bones that are more prone to fractures, common in older adults
US avg: 18.1%↑ More patients than average (+6%) — a focus area for this doctor
Diseases involving abnormal cell growth with potential to spread to other body parts
US avg: 20.8%↓ Fewer patients than average (-1%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$1.8k received from industry
78 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 Eugene Jay Yoon's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2001
University of Virginia School of Medicine
Board certified · Oct 21, 2024
Self-reported via NPPES
25 years in practice
Experienced
Gastroenterologists diagnose and treat digestive system disorders including GERD, irritable bowel syndrome (IBS), inflammatory bowel disease (Crohn's, ulcerative colitis), liver disease, pancreatitis, and colon polyps. They perform endoscopies and colonoscopies.
Taxonomy: 207RG0100X
Education & Training
University of Virginia School of Medicine (Class of 2001)
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 190319
View hospital on Medicare Care CompareVirtual Internal Medicine Care With Eugene Jay Yoon
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Eugene Jay Yoon for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Fullerton 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 Eugene Jay Yoon
Dr. Yoon is listed as active in the NPI registry with telehealth listed in Fullerton, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (714) 446-5831.
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 Eugene Jay Yoon
Practice Location
1837 Sunny Crest Dr, Fullerton, CA 92835-3616
Mailing Address
1837 Sunny Crest Dr, Fullerton, CA 92835-3616
This is a provider directory. Contact the office directly to schedule appointments.
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