Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Adhdonline

Q: What type of organization is Adhdonline?

Adhdonline is registered in NPPES as a Psychologist (its primary provider taxonomy).

Psychologist in Hudsonville, MI · enumerated 2021 · authorized official Debra Davisson, Biller/Coder.

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

National Provider Identifier

1457940496

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Registry record

Entity type Organization (Type 2)

Legal business name Adhdonline

Practice address 5619 Balsam Dr, Hudsonville, MI, 49426

Phone (616) 229-2935

Enumeration date Jan 14, 2021

Last updated in NPPES Jan 14, 2021

Taxonomy & classification

103T00000X Psychologist Behavioral Health & Social Service Providers Primary

103TP0016X Prescribing (Medical) Psychologist Behavioral Health & Social Service Providers Secondary

Authorized official

Name Debra Davisson

Title Biller/Coder

Phone (517) 740-0184

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 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.

What type of organization is Adhdonline?

Adhdonline is registered in NPPES as a Psychologist (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-01-14.