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

Organization Clinical Psychologist · NPI 1497949762

Van Byssum Associates, PC is a Clinical Psychologist in Glen Ellyn, Illinois. Licensed in Illinois. Registered with an NPI since 2007.

Licensed in
IL
In the registry since
2007
Specialties on file
2
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

174 S Montclair Ave
Glen Ellyn, IL 60137-6357
Phone: (630) 858-0875
Fax: (630) 858-0650
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 209.010527041.189584 (IL)
Clinical Psychologist Taxonomy 103TC0700X · Licence 071004744 (IL)

Record details

NPI number1497949762
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Doris Van Byssum — President/Owner · (630) 858-0875
NPI enumeratedAugust 30, 2007
Last updated in NPPESMarch 14, 2017
Mailing address174 S Montclair Ave, Glen Ellyn, IL 60137-6357

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