Ling Xu, M.D.
With over 43 years in internal medicine, Ling Xu, M.D. is a long-established internist in Castro Valley. She has been practicing since 2006 — over 43 years.
Data updated 2024-04-24 on CMS NPPES
Contact & Location
Practice Location
20642 John Dr, Castro Valley, CA 94546-5103
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Virtual Internal Medicine Care With Ling Xu
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Ling Xu for follow-ups, medication reviews, and ongoing care — 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 Ling Xu
NPI records show Dr. Xu as active with telehealth listed in Castro Valley, CA. Note: NPI status alone doesn't confirm open availability — always call ahead. Phone: (510) 785-5000.
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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.
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