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DR. AI CHIEN M.D.
NPI 1316301138
Preventive Medicine - Occupational Medicine in San Francisco, CA

Active since April 07, 2016
CASTRO & DUBOCE STREETS, SOUTH TOWER, SUITE 160-A, SAN FRANCISCO, CA 94114(415) 600-5200 Get Directions Write a Review

NPPES record last updated: April 8, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Ai Chien M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. AI CHIEN M.D. (NPI 1316301138) is an individual occupational medicine provider in San Francisco, California, licensed in California (A150820) and active in the NPI registry since April 2016. She maintains a secondary practice location in Oakland.

NPPES Registry Identity

NPI1316301138
Entity TypeIndividualFemale
Primary Taxonomy2083X0100X
Provider Legal NameDR. AI CHIENCredential: M.D.
Location AddressCASTRO & DUBOCE STREETS, SOUTH TOWER, SUITE 160-ASan Francisco, CA 94114
Mailing AddressCastro & Duboce Streets, South Tower, Suite 160-aSan Francisco, CA 94114 · (415) 600-5200
Phone(415) 600-5200
Sole ProprietorNo
Enumeration DateApril 7, 2016
Last NPPES UpdateApril 8, 2021
NPPES CertifiedMarch 18, 2021
✔ NPI 1316301138 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPreventive Medicine · Occupational MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2083X0100X
License✔ Licensed in CA · A150820
Definition
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.
CASTRO & DUBOCE STREETS, San Francisco, CA 94114
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Secondary Practice Location 1

Location 11411 E 31st StOakland, CA 94602-1018 · Phone (510) 437-4800

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ai Chien's NPI number?

The NPI number for Ai Chien is 1316301138. It was assigned to this individual provider in the NPPES registry on April 7, 2016.

Where is Ai Chien located?

Ai Chien practices at Castro & Duboce Streets South Tower, Suite 160-A, San Francisco, CA 94114. The listed phone number is (415) 600-5200.

What is Ai Chien's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Occupational Medicine, with taxonomy code 2083X0100X.

When was this NPI record last updated?

The NPPES record for Ai Chien was last updated on April 8, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.