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Edit this profileAt a glance
- 3550 N Interstate Ave, Portland, OR 97227
About Dr. Alferes
John Alferes, M.D. practices internal medicine in Portland, OR. The provider's National Provider Identifier (NPI) is 1679680805.
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
- (503) 285-9321
- Email not available
Practice Locations
3550 N INTERSTATE AVE
Portland, OR 97227
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 internists at this location 5
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 7
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 8 related providers in 1 group
Common questions
What kind of doctor is John Alferes?
John Alferes is an internist in Portland, OR. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
What is John Alferes's address?
John Alferes is listed at 3550 N Interstate Ave, Portland, OR 97227. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with John Alferes?
The number on file is (503) 285-9321. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for John Alferes?
John Alferes's National Provider Identifier is 1679680805. 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 much experience does John Alferes have?
John Alferes 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
Is John Alferes's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by John Alferes. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.