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Van Byssum Associates, PC

Psychiatric/Mental Health Nurse Practitioner in Glen Ellyn, IL · enumerated 2007 · authorized official Doris Van Byssum, President/Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1497949762

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Registry record

Entity type Organization (Type 2)
Legal business name Van Byssum Associates, PC
Practice address 174 S Montclair Ave, Glen Ellyn, IL, 60137
Phone (630) 858-0875
Fax (630) 858-0650
Enumeration date Aug 30, 2007
Last updated in NPPES Mar 14, 2017

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 071004744 (IL) Secondary
363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209.010527041.189584 (IL) Primary

Authorized official

Name Doris Van Byssum
Title President/Owner
Phone (630) 858-0875

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Van Byssum Associates, PC?
The NPI for Van Byssum Associates, PC is 1497949762, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Van Byssum Associates, PC?
NPPES lists Doris Van Byssum (President/Owner) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-14.