Donald Mang-Sum Lai, MD
Cardiovascular Disease Internal Medicine
Also practices: INTERNAL MEDICINE
With over 44 years in internal medicine, Donald Mang-Sum Lai, MD is a long-established cardiologist in Pleasanton. Trained at University of Maryland School of Medicine (class of 1982), he has been practicing for over 44 years. Among his Medicare patients, common conditions include hypertension, high cholesterol, and kidney disease (per CMS data).
Older · 743dNPPES updated 2024-04-22 · verify on CMS
Contact & Location
Practice Location
5565 W Las Positas Blvd Ste 150, Pleasanton, CA 94588-5805
How Does This Doctor Compare?
Medicare Patients
1,398
Unique beneficiaries
High volumePrescription Recipients
595
Patients prescribed
Prescriptions Written
4,247
Total claims
Total Medicare drug cost: $980k
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
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
Joint inflammation causing pain, swelling, and stiffness
An irregular, often rapid heartbeat that increases the risk of stroke
A condition where the body cannot properly regulate blood sugar levels
The heart cannot pump blood efficiently enough to meet the body's needs
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$342 received from industry
10 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 Donald Mang-Sum Lai's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1982
University of Maryland School of Medicine
Board certified · Apr 21, 2024
CMS-verified certification date
44 years in practice
Senior practitioner
Cardiologists specialize in diagnosing and treating heart and blood vessel conditions including coronary artery disease, heart failure, arrhythmias, valve disorders, and hypertension. They perform diagnostic procedures such as echocardiograms, stress tests, and cardiac catheterization.
Taxonomy: 207RC0000X
Education & Training
University of Maryland School of Medicine (Class of 1982)
Primary hospital affiliation: Psychiatric
CMS Certification Number: 194022
View hospital on Medicare Care CompareVirtual Cardiovascular Disease Care With Donald Mang-Sum Lai
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Donald Mang-Sum Lai 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 Donald Mang-Sum Lai
Dr. Lai is listed as active in the NPI registry with telehealth listed in Pleasanton, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (925) 534-6880.
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 Donald Mang-Sum Lai
Practice Location
5565 W Las Positas Blvd Ste 150, Pleasanton, CA 94588-5805
Mailing Address
5565 W Las Positas Blvd Ste 150, Pleasanton, CA 94588-5805
This is a provider directory. Contact the office directly to schedule appointments.
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