Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Elizabeth Ann Detwiler, CASAC-T

Addiction (Substance Use Disorder) Counselor in Ronkonkoma, NY · enumerated 2011.

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

National Provider Identifier

1538453477

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Registry record

Entity type Individual (Type 1)

Name Mrs. Elizabeth Ann Detwiler

Credential CASAC-T

Sex Female

Practice address 28 Balaton Ave, Ronkonkoma, NY, 11779

Phone (631) 580-7777

Fax (631) 580-7773

Enumeration date Jun 8, 2011

Last updated in NPPES Jun 8, 2011

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License T 20296 (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

Where does Elizabeth Detwiler practice?

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

What is the NPI number for Elizabeth Detwiler?

The National Provider Identifier (NPI) for Elizabeth Detwiler is 1538453477, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-08.