Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

David Arthur Colby, LICSW

Q: What is the NPI number for David Colby?

The National Provider Identifier (NPI) for David Colby is 1134321102, a Type 1 (individual) record in the CMS NPPES registry.

School Social Worker in Loudon, NH · enumerated 2007.

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

National Provider Identifier

1134321102

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Registry record

Entity type Individual (Type 1)

Name David Arthur Colby

Credential LICSW

Sex Male

Practice address Loudon, NH, 03307

Phone (603) 798-3370

Enumeration date Jun 1, 2007

Last updated in NPPES Sep 11, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 736 (NH) Secondary

1041S0200X School Social Worker Behavioral Health & Social Service Providers · License 736 (NH) Primary

Other identifiers

Identifier	Type	State	Issuer
30010081	Medicaid	NH	-

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 the NPI number for David Colby?

The National Provider Identifier (NPI) for David Colby is 1134321102, a Type 1 (individual) record in the CMS NPPES registry.

Where does David Colby practice?

The practice location on file with NPPES is in Loudon, NH. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.