May Cheng-Su Chen, MD
Medical Oncology Internal Medicine
May Cheng-Su Chen is a Medical Oncology Internal Medicine specialist based in Campbell, CA with over 33 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: HEMATOLOGY/ONCOLOGY, INTERNAL MEDICINE
With over 33 years in internal medicine, May Cheng-Su Chen, MD is a long-established medical oncology internal medicine specialist in Campbell. A Yale University School of Medicine graduate since 1993, she brings 33+ years of experience. CMS Medicare data shows her patients commonly have high cholesterol, hypertension, and cancer.
At a glance
- Prescribes opioids less than 32% of reporting doctors in California
- Virtual visits available — no app or travel required
Older · 6788dNPPES updated 2007-10-22 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
50 E Hamilton Ave Ste 200, Campbell, CA 95008
How Does This Doctor Compare?
Based on Medicare data, this doctor prescribes opioid pain medications conservatively.
Opioid Rx
↓ Lower = better2.8%
California avg: 5.2 · US avg: 5.1
✓ Higher than most doctors nationally(-2.3 pts)
2.8% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Medicare Patients
576
Unique beneficiaries
High volumePrescription Recipients
162
Patients prescribed
Prescriptions Written
608
Total claims
Total Medicare drug cost: $663k
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 High Cholesterol, Hypertension, and Cancer.
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%Diseases involving abnormal cell growth with potential to spread to other body parts
US avg: 20.8%↑ More patients than average (+48%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-10%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-4%) — less common here
Weakened bones that are more prone to fractures, common in older adults
US avg: 18.1%↑ More patients than average (+8%) — 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
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↓ Fewer patients than average (-7%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$155 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 May Cheng-Su Chen's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1993
Yale School of Medicine
33 years in practice
Senior practitioner
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 1993)
Primary hospital affiliation: Psychiatric
CMS Certification Number: 194115
View hospital on Medicare Care CompareVirtual Medical Oncology Care With May Cheng-Su Chen
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with May Cheng-Su Chen for cholesterol management, blood pressure monitoring, follow-up consultations — no travel to Campbell 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 May Cheng-Su Chen
Dr. Chen is listed as active in the NPI registry with telehealth listed in Campbell, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (408) 376-2300.
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 May Cheng-Su Chen
Practice Location
50 E Hamilton Ave Ste 200, Campbell, CA 95008
Mailing Address
50 E Hamilton Ave Ste 200, Campbell, CA 95008
This is a provider directory. Contact the office directly to schedule appointments.
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