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

Steven Mark Portnoy, MA

Individual provider Clinical Psychologist · NPI 1528461746

Steven Mark Portnoy, MA is a Clinical Psychologist in Southfield, Michigan. Practices as a sole proprietor. Licensed in Michigan.

Licensed in
MI
In the registry since
2014
Specialties on file
2
What do these letters mean?
MA — Master of Arts
A graduate arts degree.

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Practice location Address checks out

19875 Butternut Ln
Southfield, MI 48076-1795
Phone: (248) 568-3711
Fax: (248) 569-9410
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 6301007087 (MI)
School Psychologist Taxonomy 103TS0200X · Licence 6301007087 (MI)

Record details

NPI number1528461746
Entity typeIndividual (Type 1)
GenderMale
Credentials MA
Sole proprietorYes
NPI enumeratedOctober 1, 2014
Last updated in NPPESOctober 1, 2014

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