James Mark Lin, M.D.
Gastroenterology Internal Medicine
Also practices: INTERNAL MEDICINE
Patients across CA can see James Mark Lin, M.D. in person in Pleasanton or via virtual visit — no travel required. A Vanderbilt University School of Medicine graduate since 2005, he brings 21+ years of experience. CMS Medicare data shows his patients commonly have high cholesterol, hypertension, and arthritis.
Older · 753dNPPES updated 2024-04-12 · verify on CMS
Contact & Location
Practice Location
5565 W Las Positas Blvd Ste 200, Pleasanton, CA 94588-5806
How Does This Doctor Compare?
Generic Rx
↑ Higher = better73%
California avg: 83.3 · US avg: 82.8
⚠ Lower than most doctors nationally(-9.8 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
517
Unique beneficiaries
High volumePrescription Recipients
581
Patients prescribed
Prescriptions Written
1,776
Total claims
Total Medicare drug cost: $739k
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 Arthritis.
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%↑ More patients than average (+4%) — 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
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+4%) — 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 (-3%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-6%) — less common here
Conditions affecting emotional state, including depression and bipolar disorder
Weakened bones that are more prone to fractures, common in older adults
US avg: 18.1%↑ More patients than average (+4%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$164 received from industry
17 transactions reported in 2018 ·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 2018, attributed to James Mark Lin's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2005
Vanderbilt University School of Medicine
Board certified · Apr 11, 2024
CMS-verified certification date
21 years in practice
Experienced
Gastroenterologists diagnose and treat digestive system disorders including GERD, irritable bowel syndrome (IBS), inflammatory bowel disease (Crohn's, ulcerative colitis), liver disease, pancreatitis, and colon polyps. They perform endoscopies and colonoscopies.
Taxonomy: 207RG0100X
Education & Training
Vanderbilt University School of Medicine (Class of 2005)
Primary hospital affiliation: Psychiatric
CMS Certification Number: 194022
View hospital on Medicare Care CompareVirtual Internal Medicine Care With James Mark Lin
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with James Mark Lin for cholesterol management, blood pressure monitoring, arthritis 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 James Mark Lin
NPI records show Dr. Lin as active with telehealth listed in Pleasanton, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (650) 736-5555.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2018 · 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 James Mark Lin
Practice Location
5565 W Las Positas Blvd Ste 200, Pleasanton, CA 94588-5806
Mailing Address
5565 W Las Positas Blvd Ste 200, Pleasanton, CA 94588-5806
This is a provider directory. Contact the office directly to schedule appointments.
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