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.
505 PARNASSUS AVE M585
San Francisco, CA 94143
Aras N. Mattis, M.D. is a pathologist in San Francisco, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pathology”.
NPI registry
Aras N. Mattis, M.D. is listed at 505 Parnassus Ave M585, San Francisco, CA 94143. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (415) 353-8987. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Aras N. Mattis, M.D.'s National Provider Identifier is 1326374869. 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
Aras N. Mattis, M.D. attended Other, graduating in 2007. This comes from the CMS National Downloadable File.
CMS public data
Aras N. Mattis, M.D. has 19 years experience. Calculated from a graduation year of 2007, 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 Aras N. Mattis, M.D.. 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.