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Edit this profileAt a glance
- 297 W Main St, Sayville, NY 11782
About Dr. Tan
Based in Sayville, NY, Alfonso Tan, M.D. is listed in the NPI registry under internal medicine. NPI 1588689566 identifies this record in the national registry.
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
- (631) 589-2323
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
297 W MAIN ST
Sayville, NY 11782
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other internists in Sayville 3
Same specialty, same city.
Common questions
What kind of doctor is Alfonso Tan?
Alfonso Tan is an internist in Sayville, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
What is Alfonso Tan's address?
Alfonso Tan is listed at 297 W Main St, Sayville, NY 11782. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Alfonso Tan?
The number on file is (631) 589-2323. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Alfonso Tan's NPI number?
Alfonso Tan's National Provider Identifier is 1588689566. 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 Alfonso Tan been practicing?
Alfonso Tan 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 Alfonso Tan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Alfonso Tan. If this is you, claiming it is free.
Guide.md
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