Provider Profile
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Source: NPPES NPI Registry
6100 HARVARD AVE
Glen Echo, MD 20812
Dia C. Costello is a clinical social worker in Glen Echo, MD. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dia C. Costello is listed at 6100 Harvard Ave, Glen Echo, MD 20812. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (301) 263-9616. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dia C. Costello's National Provider Identifier is 1538575196. 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
Dia C. Costello has 12+ years experience. Registered with an NPI since 2014. 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 Dia C. Costello. 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.