NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William John Pickens, EDD

Mental Health Counselor in Martinez, CA · enumerated 2011.

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

National Provider Identifier

1427330711

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. William John Pickens
Credential EDD
Sex Male
Practice address 1340 Arnold Dr, Martinez, CA, 94553
Enumeration date Sep 13, 2011
Last updated in NPPES Sep 13, 2011

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

Where does William Pickens practice?
The practice location on file with NPPES is in Martinez, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Pickens?
The National Provider Identifier (NPI) for William Pickens is 1427330711, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-13.