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

Karen S Johnson, LICSW

Clinical Social Worker in Amherst, NH · enumerated 2006.

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

National Provider Identifier

1083628762

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Registry record

Entity type Individual (Type 1)

Name Karen S Johnson

Credential LICSW

Sex Female

Practice address Amherst, NH, 03031

Phone (603) 595-8555

Fax (603) 595-8555

Enumeration date Jul 28, 2006

Last updated in NPPES Jul 5, 2013

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 812 (NH) Primary

Other identifiers

Identifier	Type	State	Issuer
3071845	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 Karen Johnson?

The National Provider Identifier (NPI) for Karen Johnson is 1083628762, a Type 1 (individual) record in the CMS NPPES registry.

Where does Karen Johnson practice?

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

Other providers at this practice address

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Margaret Buff Psychiatric/Mental Health Nurse Practitioner · Amherst, NH NPI 1285745463

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-07-05.