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

Mr. William Taft Bowden, LCPC

Professional Counselor in Markham, IL · enumerated 2010.

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

National Provider Identifier

1407158603

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. William Taft Bowden

Credential LCPC

Sex Male

Practice address Markham, IL, 60428

Phone (708) 283-1631

Fax (708) 747-6379

Enumeration date Nov 22, 2010

Last updated in NPPES Oct 30, 2012

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

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 180.004084 (IL) 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 Bowden practice?

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

What is the NPI number for William Bowden?

The National Provider Identifier (NPI) for William Bowden is 1407158603, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-30.