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Edit this profileAt a glance
- 2500 Merced St, San Leandro, CA 94577
About Dr. Choy
Isaac O. Choy, M.D. is a healthcare provider in San Leandro, CA specializing in thoracic surgery (cardiothoracic). This provider record is associated with NPI 1578641320.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (510) 454-1000
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
2500 MERCED ST
San Leandro, CA 94577
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other thoracic surgery specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What does Isaac O. Choy specialize in?
Isaac O. Choy is a thoracic surgery (cardiothoracic) in San Leandro, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Isaac O. Choy located?
Isaac O. Choy is listed at 2500 Merced St, San Leandro, CA 94577. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Isaac O. Choy's phone number?
The number on file is (510) 454-1000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Isaac O. Choy's NPI number?
Isaac O. Choy's National Provider Identifier is 1578641320. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Isaac O. Choy been practicing?
Isaac O. Choy has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Isaac O. Choy confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Isaac O. Choy. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.