Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. William C Fowle, LMSW

Clinical Social Worker in Traverse City, MI · enumerated 2007.

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

National Provider Identifier

1154531648

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Registry record

Entity type Individual (Type 1)

Name Mr. William C Fowle

Credential LMSW

Sex Male

Practice address 1719 S Garfield Ave, Traverse City, MI, 49686

Phone (231) 935-0799

Fax (231) 935-0962

Enumeration date May 23, 2007

Last updated in NPPES Jan 5, 2017

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 6801012831 (MI) Primary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 4101005403 (MI) 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

What is the NPI number for William Fowle?

The National Provider Identifier (NPI) for William Fowle is 1154531648, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Fowle practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-05.