John Chao-Chung Wu, M.D.
John Chao-Chung Wu is an Emergency Medicine specialist based in Westminster, CA with over 22 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
With over 22 years in emergency medicine, John Chao-Chung Wu, M.D. is a long-established emergency medicine physician in Westminster. With 22+ years of experience, he has been practicing in the Westminster area. Among his Medicare patients, common conditions include hypertension, high cholesterol, and diabetes (per CMS data).
At a glance
- Uses generic medications more than 87% of reporting doctors in California
- Virtual visits available — no app or travel required
Older · 1165dNPPES updated 2023-03-15 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
200 Hospital Cir, Westminster, CA 92683-3910
How Does This Doctor Compare?
Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.
Opioid Rx
↓ Lower = better7.99%
California avg: 5.2 · US avg: 5.1
⚠ Lower than most doctors nationally(+2.9 pts)
7.99% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better94.4%
California avg: 83.3 · US avg: 82.8
✓ Higher than most doctors nationally(+11.6 pts)
Better than 87% of reporting doctors in CaliforniaHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
444
Unique beneficiaries
Standard volumePrescription Recipients
458
Patients prescribed
Prescriptions Written
588
Total claims
Total Medicare drug cost: $10k
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 (+15%) — 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 (+11%) — 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 (+21%) — a focus area for this doctor
Conditions affecting emotional state, including depression and bipolar disorder
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Board certified · Mar 14, 2023
Self-reported via NPPES
22 years in practice
Experienced
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Taxonomy: 207P00000X
Mailing address
Po Box 4419, Woodland Hills, CA 91365-4419
Differs from practice location
Primary hospital affiliation: Long-term
CMS Certification Number: 192010
View hospital on Medicare Care CompareVirtual Emergency Medicine Care With John Chao-Chung Wu
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with John Chao-Chung Wu for blood pressure monitoring, cholesterol management, diabetes check-ins — no travel to Westminster 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 Chao-Chung Wu
Dr. Wu is listed as active in the NPI registry with telehealth listed in Westminster, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (818) 340-9988.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact John Chao-Chung Wu
Practice Location
200 Hospital Cir, Westminster, CA 92683-3910
Mailing Address
Po Box 4419, Woodland Hills, CA 91365-4419
This is a provider directory. Contact the office directly to schedule appointments.
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