Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dr Gerald Mccallum Inc

Q: What type of organization is Dr Gerald Mccallum Inc?

Dr Gerald Mccallum Inc is registered in NPPES as a Clinical Psychologist (its primary provider taxonomy).

Clinical Psychologist in Naperville, IL · enumerated 2023 · authorized official Gerald Mccallum, President/Clinical Psychologist.

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

National Provider Identifier

1568177343

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Dr Gerald Mccallum Inc

Practice address 1560 Wall St, Naperville, IL, 60563

Phone (630) 983-8400

Enumeration date Jan 17, 2023

Last updated in NPPES Jan 17, 2023

Taxonomy & classification

103T00000X Psychologist Behavioral Health & Social Service Providers Secondary

103TB0200X Cognitive & Behavioral Psychologist Behavioral Health & Social Service Providers Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers Primary

103TC1900X Counseling Psychologist Behavioral Health & Social Service Providers Secondary

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers Secondary

103TF0000X Family Psychologist Behavioral Health & Social Service Providers Secondary

Authorized official

Name Gerald Mccallum

Title President/Clinical Psychologist

Phone (630) 983-8400

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is Dr Gerald Mccallum Inc?

Dr Gerald Mccallum Inc is registered in NPPES as a Clinical Psychologist (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

Browse all →

Akshatha Shetty Psychiatry Physician · Naperville, IL NPI 1932289329 Anne Dickinson Professional Counselor · Naperville, IL NPI 1588796718 Visiting Angels In Home Supportive Care Agency · Naperville, IL NPI 1053607473 Nwl Acquisition S.C. Health Service Clinic/Center · Naperville, IL NPI 1255759668 Jada Butler Physician Assistant · Naperville, IL NPI 1457755910 Yusra Al-Shawaf Clinical Social Worker · Naperville, IL NPI 1104306158

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-17.