Physician Profile
Gillian Reierson, M.D. PH.D. practices psychiatry in Walnut Creek, CA. Gillian is also listed as specializing in child & adolescent psychiatry.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
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.
2970 CAMINO DIABLO FL 1
Walnut Creek, CA 94597
2001 The Alameda
San Jose, CA 95126
Gillian Reierson is a psychiatrist in Walnut Creek, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychiatry”.
NPI registry
Gillian Reierson is listed at 2970 Camino Diablo Fl 1, Walnut Creek, CA 94597. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (925) 360-5264. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Gillian Reierson's National Provider Identifier is 1003178641. 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
Gillian Reierson has 14+ years experience. Registered with an NPI since 2012. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Not yet. This profile is built from public federal data and has not been confirmed by Gillian Reierson. 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.