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

Vivian R.C. Witter, LCSW

Mental Health Counselor in Chesterton, IN · enumerated 2011 · practices at Duneland Counseling Center, Inc..

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

National Provider Identifier

1659648798

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Registry record

Entity type Individual (Type 1)

Name Vivian R.C. Witter

Credential LCSW

Sex Female

Practice address Chesterton, IN, 46304

Phone (219) 921-0705

Fax (219) 921-0557

Enumeration date Nov 17, 2011

Last updated in NPPES Nov 17, 2011

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 34003134A (IN) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

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 Vivian Witter?

The National Provider Identifier (NPI) for Vivian Witter is 1659648798, a Type 1 (individual) record in the CMS NPPES registry.

Where does Vivian Witter practice?

The practice location on file with NPPES is in Chesterton, IN. 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 2011-11-17.