Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katherine S Johnson

Psychiatric/Mental Health Clinical Nurse Specialist in Northampton, MA · enumerated 2017 · practices at Valley Psych Associates, LLC.

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

National Provider Identifier

1629587613

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Registry record

Entity type Individual (Type 1)

Name Katherine S Johnson

Sex Female

Practice address 160 Main St Ste 14, Northampton, MA, 01060

Phone (413) 203-4134

Fax (800) 580-4703

Enumeration date Sep 22, 2017

Last updated in NPPES May 29, 2026

Taxonomy & licenses

364SP0808X Psychiatric/Mental Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License RN2298411 (MA) Primary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN2298411 (MA) Secondary

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

Is NPI 1629587613 active?

Yes, as of the latest NPPES snapshot, NPI 1629587613 is active (record last updated 2026-05-29).

How do I verify Katherine Johnson's NPI record?

Cross-check NPI 1629587613 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Valley Psych Associates, LLC Psychiatric/Mental Health Nurse Practitioner · Northampton, MA NPI 1972373215

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-29.