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.
2500 ALHAMBRA AVE
Martinez, CA 94553
Sophia Chen is a geriatrician in Martinez, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Geriatric Medicine”.
NPI registry
Sophia Chen is listed at 2500 Alhambra Ave, Martinez, CA 94553. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (925) 370-5200. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Sophia Chen's National Provider Identifier is 1225371016. 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
Sophia Chen attended Other, graduating in 2013. This comes from the CMS National Downloadable File.
CMS public data
Sophia Chen has 13 years experience. Calculated from a graduation year of 2013, 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 Sophia Chen. 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.