Individual
MR. MARK STEWART SIMPSON
Active
Individual
MR. MARK STEWART SIMPSON
Active
Sole proprietor
Yes
Provider details
NPI number
Gender
Man
Credential
PSYD, LADAC
Taxonomy
Speciality
Code
Description
License number
State
101YA0400X
Addiction (Substance Use Disorder) Counselor
0081081
NM
101YA0400X
Addiction (Substance Use Disorder) Counselor
CAD0081081
NM
103T00000X
Psychologist
0930
NM
103TC0700X
Clinical Psychologist
Primary
0930
NM
103TP0016X
Prescribing (Medical) Psychologist
Primary
PSY-RXP0067
NM
Other
Enumeration date
09/14/2005
Last updated
07/02/2026
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