Mark L Shiu, DO
Also practices: EMERGENCY MEDICINE
Patients across CA can see Mark L Shiu, DO in person in Rancho Cucamonga or via virtual visit — no travel required. He has been in practice for 23+ years. He regularly sees Medicare patients with hypertension, high cholesterol, and arthritis (per CMS claims data).
At a glance
- Prescribes opioids less than 46% of reporting doctors in California
- Uses generic medications more than 70% of reporting doctors in California
- Virtual visits available — no app or travel required
Older · 5033dNPPES updated 2012-07-25 · verify on CMS
Contact & Location
Practice Location
7974 Haven Ave Suite 250, Rancho Cucamonga, CA 91730-3052
How Does This Doctor Compare?
Based on Medicare data, this doctor prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.
Opioid Rx
↓ Lower = better1.24%
California avg: 5.2 · US avg: 5.1
✓ Higher than most doctors nationally(-3.9 pts)
Typical range among reporting doctors in California1.24% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better90.7%
California avg: 83.3 · US avg: 82.8
✓ Higher than most doctors nationally(+7.9 pts)
Better than 70% of reporting doctors in CaliforniaHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
144
Unique beneficiaries
Standard volumePrescription Recipients
381
Patients prescribed
Prescriptions Written
3,724
Total claims
Total Medicare drug cost: $344k
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%↓ Fewer patients than average (-2%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+1%) — a focus area for this doctor
Excessive worry or fear that interferes with daily life
US avg: 34.1%↑ 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 (-6%) — less common here
Conditions affecting emotional state, including depression and bipolar disorder
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↓ Fewer patients than average (-7%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$1.6k 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 Mark L Shiu's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
23 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
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 190118
View hospital on Medicare Care CompareVirtual Family Medicine Care With Mark L Shiu
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Mark L Shiu for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Rancho Cucamonga 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 Mark L Shiu
NPI records show Dr. Shiu as active with telehealth listed in Rancho Cucamonga, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (800) 734-1733.
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 Mark L Shiu
Practice Location
7974 Haven Ave Suite 250, Rancho Cucamonga, CA 91730-3052
Mailing Address
7974 Haven Ave Suite 250, Rancho Cucamonga, CA 91730-3052
This is a provider directory. Contact the office directly to schedule appointments.
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