Nancy Ngoc Giao Ly, MD, MPH

Occupational Medicine Preventive Medicine

Preventive Medicine

(925) 206-2000Walnut Creek, CA
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Nancy Ngoc Giao Ly, MD, MPH runs an independent occupational medicine preventive medicine specialist practice in Walnut Creek, CA. She has been in practice for 15+ years. Occupational medicine focuses on the health of workers, including the ability to perform work; the physical, chemical.

At a glance

  • Uses generic medications more than 35% of reporting doctors in California
  • Virtual visits available — no app or travel required
1 of 8 Preventive Medicine providers in CASee all Preventive Medicine in Walnut Creek15+ years experienceNPI since 2011

Older · 1545dNPPES updated 2022-02-11 · verify on CMS

Contact & Location

Practice Location

320 Lennon Ln Bldg 3, Walnut Creek, CA 94598

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. 15 years in practice

    Experienced

Occupational medicine focuses on the health of workers, including the ability to perform work; the physical, chemical, biological, and social environments of the workplace; and the health outcomes of environmental exposures. Practitioners in this field address the promotion of health in the work place, and the prevention and management of occupational and environmental injury, illness, and disability.

Taxonomy: 2083X0100X

Practice Footprint

Mailing address

320 Lennon Ln Bldg 3, Walnut Creek, CA 94598-2419

Differs from practice location

Virtual Occupational Medicine Care With Nancy Ngoc Giao Ly

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Nancy Ngoc Giao Ly for follow-ups, medication reviews, and ongoing care — no travel to Walnut Creek 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 Nancy Ngoc Giao Ly

Dr. Ly is listed as active in the NPI registry with telehealth listed in Walnut Creek, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (925) 206-2000.

Verified across 3 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D. 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.

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