Thomas Yang Sun, MD
Medical Oncology Internal Medicine
Also practices: INTERNAL MEDICINE
Patients across CA can see Thomas Yang Sun, MD in person in Pleasanton or via virtual visit — no travel required. A Yale University School of Medicine graduate since 2017, he brings 9+ years of experience. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and kidney disease.
Older · 736dNPPES updated 2024-04-29 · verify on CMS
Contact & Location
Practice Location
5725 W Las Positas Blvd Ste 100a, Pleasanton, CA 94588-4054
How Does This Doctor Compare?
Opioid Rx
↓ Lower = better7.83%
California avg: 5.2 · US avg: 5.1
⚠ Lower than most doctors nationally(+2.7 pts)
7.83% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better74.3%
California avg: 83.3 · US avg: 82.8
⚠ Lower than most doctors nationally(-8.5 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
100
Unique beneficiaries
Standard volumePrescription Recipients
57
Patients prescribed
Prescriptions Written
230
Total claims
Total Medicare drug cost: $417k
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 Chronic Kidney Disease.
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
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+24%) — 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 (+11%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-13%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↑ More patients than average (+2%) — 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 (+8%) — a focus area for this doctor
An irregular, often rapid heartbeat that increases the risk of stroke
US avg: 22%↑ More patients than average (+8%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$156 received from industry
6 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 Thomas Yang Sun's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2017
Yale School of Medicine
Board certified · Apr 28, 2024
CMS-verified certification date
9 years in practice
Established
Medical oncologists diagnose and treat cancer using chemotherapy, immunotherapy, targeted therapy, and hormone therapy. They coordinate care with surgical oncologists and radiation oncologists for comprehensive cancer treatment.
Taxonomy: 207RX0202X
Education & Training
Yale University School of Medicine (Class of 2017)
Primary hospital affiliation: Psychiatric
CMS Certification Number: 194022
View hospital on Medicare Care CompareVirtual Medical Oncology Care With Thomas Yang Sun
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Thomas Yang Sun for blood pressure monitoring, cholesterol management, kidney care follow-ups — no travel to Pleasanton 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 Thomas Yang Sun
NPI records show Dr. Sun as active with telehealth listed in Pleasanton, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (925) 734-8130.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.
Contact Thomas Yang Sun
Practice Location
5725 W Las Positas Blvd Ste 100a, Pleasanton, CA 94588-4054
Mailing Address
5725 W Las Positas Blvd Ste 100a, Pleasanton, CA 94588-4054
This is a provider directory. Contact the office directly to schedule appointments.
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