Kenneth W. Lien, MD
Kenneth W. Lien is an Allergy Allergy & Immunology specialist based in Castro Valley, CA with over 28 years of clinical experience. Offers virtual telehealth visits.
Kenneth W. Lien, MD has practiced allergy & immunology for 28+ years, working in group practice. A University of Chicago, Pritzker School of Medicine graduate since 1998, he brings 28+ years of experience. He regularly sees Medicare patients with high cholesterol, hypertension, and asthma (per CMS claims data).
Older · 4492dNPPES updated 2014-02-03 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
20400 Lake Chabot Rd Ste. 304, Castro Valley, CA 94546-5316
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 Asthma.
Elevated cholesterol or triglycerides that increase heart disease risk
High blood pressure — a leading risk factor for heart disease and stroke
A condition causing airway inflammation, wheezing, and difficulty breathing
Joint inflammation causing pain, swelling, and stiffness
Excessive worry or fear that interferes with daily life
A condition where the body cannot properly regulate blood sugar levels
Conditions affecting emotional state, including depression and bipolar disorder
Chronic Obstructive Pulmonary Disease — a group of lung diseases that block airflow
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1998
University of Chicago, Pritzker School of Medicine
28 years in practice
Experienced
A physician who specializes in the diagnosis, treatment, and management of allergies.
Taxonomy: 207KA0200X
Education & Training
University of Chicago, Pritzker School of Medicine (Class of 1998)
Mailing address
20400 Lake Chabot Rd Ste 304 Ste. 304, Castro Valley, CA 94546-5316
Differs from practice location
Virtual Allergy & Immunology Care With Kenneth W. Lien
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Kenneth W. Lien for cholesterol management, blood pressure monitoring, asthma reviews — no travel to Castro Valley required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.
Frequently Asked Questions
Common questions about Kenneth W. Lien
NPI records show Dr. Lien as active with telehealth listed in Castro Valley, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (510) 537-0700.
Sourced from CMS NPPES · OIG LEIE · 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 Kenneth W. Lien
Practice Location
20400 Lake Chabot Rd Ste. 304, Castro Valley, CA 94546-5316
Mailing Address
20400 Lake Chabot Rd Ste 304 Ste. 304, Castro Valley, CA 94546-5316
This is a provider directory. Contact the office directly to schedule appointments.
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