Physician Profile
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License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
10330 SE 32ND AVE STE 305
Milwaukie, OR 97222
9300 SE 91st Ave Suite 300
Happy Valley, OR 97086
Dennis C. Tan is an OB-GYN in Milwaukie, OR. That is the designation recorded for this NPI in the federal registry, where it is listed as “Obstetrics & Gynecology”.
NPI registry
Dennis C. Tan is listed at 10330 Se 32Nd Ave Ste 305, Milwaukie, OR 97222. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (503) 513-1800. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dennis C. Tan's National Provider Identifier is 1457577983. 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
Dennis C. Tan attended Other, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
Dennis C. Tan has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
Not yet. This profile is built from public federal data and has not been confirmed by Dennis C. Tan. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.