Ruey Jen Chang, P.A.
Ruey Jen Chang is a Medical Physician Assistant based in La Palma, CA with over 18 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Patients across CA can see Ruey Jen Chang, P.A. in person in La Palma or via virtual visit — no travel required. With 18+ years of experience, she has been practicing in the La Palma area. Among her Medicare patients, common conditions include hypertension, high cholesterol, and arthritis (per CMS data). CMS MIPS quality score: 100/100 (2023).
At a glance
- Federal MIPS score higher than 93% of MIPS-scored doctors in California
- Virtual visits available — no app or travel required
Older · 5525dNPPES updated 2011-04-07 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
5451 La Palma Ave Suite 25, La Palma, CA 90623-1728
How Does This Doctor Compare?
Based on Medicare data, this doctor scores better than 93% of doctors in California on federal quality measures.
MIPS Score
2023100/100
California avg: 78.6 · US avg: 83.6
✓ Higher than most doctors nationally(+16.4 pts)
Top 7% of MIPS-scored doctors in CaliforniaHow the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Opioid Rx
↓ Lower = better42.86%
California avg: 5.2 · US avg: 5.1
⚠ Lower than most doctors nationally(+37.8 pts)
42.86% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Medicare Patients
270
Unique beneficiaries
Standard volumePrescription Recipients
35
Patients prescribed
Prescriptions Written
84
Total claims
Total Medicare drug cost: $17k
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 (+26%) — a focus area for this doctor
Weakened bones that are more prone to fractures, common in older adults
US avg: 18.1%↑ More patients than average (+43%) — 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 (+10%) — 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 (+3%) — 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 (-7%) — less common here
Chronic Obstructive Pulmonary Disease — a group of lung diseases that block airflow
US avg: 20.4%↑ More patients than average (+1%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$2.0k received from industry
98 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 Ruey Jen Chang's NPI.
Patient Reviews
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
18 years in practice
Experienced
Definition to come...
Taxonomy: 363AM0700X
Virtual Medical Care With Ruey Jen Chang
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Ruey Jen Chang for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to La Palma 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 Ruey Jen Chang
NPI records show Dr. Chang as active with telehealth listed in La Palma, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (714) 670-1340.
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 Ruey Jen Chang
Practice Location
5451 La Palma Ave Suite 25, La Palma, CA 90623-1728
Mailing Address
5451 La Palma Ave Suite 25, La Palma, CA 90623-1728
This is a provider directory. Contact the office directly to schedule appointments.
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