Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

William Marsh

Individual provider Psychologist · NPI 1447756234

William Marsh is a Psychologist in Phoenix, Arizona. Practices as a sole proprietor. Licensed in Arizona.

Licensed in
AZ
In the registry since
2018

Practice location Address checks out

300 W Clarendon Ave Ste 470
Phoenix, AZ 85013-3475
Phone: (602) 730-4450
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 4759 (AZ)

Record details

NPI number1447756234
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedApril 2, 2018
Last updated in NPPESApril 2, 2018
Mailing address300 W Clarendon Ave Ste 470, Phoenix, AZ 85013-3475

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