Provider Profile
Jeffrey J. Marx, MA is a professional counselor based in Saint Louis, MO. Jeffrey is also listed as specializing in marriage & family therapist.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Source: NPPES NPI Registry
9666 OLIVE BLVD
Saint Louis, MO 63132
Jeffrey J. Marx is a professional counselor in Saint Louis, MO. That is the designation recorded for this NPI in the federal registry.
NPI registry
Jeffrey J. Marx is listed at 9666 Olive Blvd, Saint Louis, MO 63132. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (636) 323-9979. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Jeffrey J. Marx's National Provider Identifier is 1154214435. 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
Jeffrey J. Marx has 1+ years experience. Registered with an NPI since 2025. 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 Jeffrey J. Marx. 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.