Provider Profile
Listed in the NPI registry as a psychologist — clinical, Harold A. Ziesat, PhD practices in Columbia, MD. NPI 1811101769 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
8640 GUILFORD RD STE 252
Columbia, MD 21046
Harold A. Ziesat is a psychologist in Columbia, MD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychologist — Clinical”.
NPI registry
Harold A. Ziesat is listed at 8640 Guilford Rd Ste 252, Columbia, MD 21046. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (410) 997-1183. Contact the office directly to confirm availability and scheduling.
NPI registry
Harold A. Ziesat's National Provider Identifier is 1811101769. 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
Harold A. Ziesat has 19+ years experience. Registered with an NPI since 2007. 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 Harold A. Ziesat. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.