Is this information incorrect? This page shows public data from NPPES. Update your record in NPPES and this page will update automatically within 7 days.
Individual
DR. ANDRE DIRK VAN ROOYEN
Active
Individual
DR. ANDRE DIRK VAN ROOYEN
Active
Sole proprietor
Yes
Provider details
NPI number
Gender
Man
Credential
PH.D.
Taxonomy
Speciality
Code
Description
License number
State
103G00000X
Clinical Neuropsychologist
18256
CA
103TC0700X
Clinical Psychologist
18256
CA
103TC2200X
Clinical Child & Adolescent Psychologist
Primary
18256
CA
Other
Enumeration date
01/23/2007
Last updated
09/11/2025
About Stedi
Stedi is the only programmable healthcare clearinghouse. You can use Stedi's APIs to process eligibility checks, claims, remits, and more.
Sign upProduct
Developers