NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Cornell Keith Knockum

Mental Health Counselor in American Canyon, CA · enumerated 2009 · practices at Mcgrew Behavior Intervention Services, Inc..

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

National Provider Identifier

1396975769

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. Cornell Keith Knockum
Sex Male
Practice address 229 Newbury Way, American Canyon, CA, 94503
Fax (707) 648-0393
Enumeration date Jul 20, 2009
Last updated in NPPES Jul 20, 2009

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Primary

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 1396975769 active?
Yes, as of the latest NPPES snapshot, NPI 1396975769 is active (record last updated 2009-07-20).
How do I verify Cornell Knockum's NPI record?
Cross-check NPI 1396975769 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-07-20.