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

Mr. William James Wischhusen, LMHC

Mental Health Counselor in Center Moriches, NY · enumerated 2020.

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

National Provider Identifier

1154922888

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Registry record

Entity type Individual (Type 1)

Name Mr. William James Wischhusen

Credential LMHC

Sex Male

Practice address Center Moriches, NY, 11934

Phone (631) 820-1370

Enumeration date Nov 9, 2020

Last updated in NPPES Nov 9, 2020

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

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 004346 (NY) 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.

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Frequently asked questions

What is the NPI number for William Wischhusen?

The National Provider Identifier (NPI) for William Wischhusen is 1154922888, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Wischhusen practice?

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

Other providers at this practice address

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Crystal Wischhusen Social Worker · Center Moriches, NY NPI 1245642925

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-09.