Roger Chang, M.D.
Also practices: HOSPITALIST
Roger Chang, M.D. has been part of the Orange medical community since 2006 in group practice. He graduated from Northwestern University Feinberg Medical School in 2001 and has 25+ years of clinical experience. He regularly sees Medicare patients with hypertension, high cholesterol, and kidney disease (per CMS claims data).
Older · 2023dNPPES updated 2020-10-21 · verify on CMS
How Does This Doctor Compare?
Medicare Patients
110
Unique beneficiaries
Standard volumePrescription Recipients
85
Patients prescribed
Prescriptions Written
146
Total claims
Total Medicare drug cost: $7k
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 Chronic Kidney Disease.
High blood pressure — a leading risk factor for heart disease and stroke
Elevated cholesterol or triglycerides that increase heart disease risk
Gradual loss of kidney function over time, often linked to diabetes or hypertension
Joint inflammation causing pain, swelling, and stiffness
The heart cannot pump blood efficiently enough to meet the body's needs
A condition where the body cannot properly regulate blood sugar levels
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
An irregular, often rapid heartbeat that increases the risk of stroke
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$56 received from industry
2 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 Roger Chang's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2001
Northwestern University Feinberg School of Medicine
Board certified · Oct 20, 2020
CMS-verified certification date
25 years in practice
Experienced
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Taxonomy: 208M00000X
Education & Training
Northwestern University Feinberg Medical School (Class of 2001)
Mailing address
2501 E Chapman Ave, Orange, CA 92869-3204
Differs from practice location
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 190053
View hospital on Medicare Care CompareVirtual Hospitalist Care With Roger Chang
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Roger Chang for blood pressure monitoring, cholesterol management, kidney care follow-ups — no travel to Orange 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 Roger Chang
Dr. Chang is listed as active in the NPI registry with telehealth listed in Orange, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (714) 771-8000.
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 Roger Chang
Practice Location
2501 E Chapman Ave, Orange, CA 92869
Mailing Address
2501 E Chapman Ave, Orange, CA 92869-3204
This is a provider directory. Contact the office directly to schedule appointments.
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