Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Justin Lee Oyer, CDCA

Addiction (Substance Use Disorder) Counselor in Jackson, OH · enumerated 2020.

Data current as of Jul 11, 2026 · sourced from CMS NPPES

National Provider Identifier

1427670587

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Registry record

Entity type Individual (Type 1)

Name Justin Lee Oyer

Credential CDCA

Sex Male

Practice address 84 E Mound St, Jackson, OH, 45640

Phone (740) 577-3834

Enumeration date May 12, 2020

Last updated in NPPES May 12, 2020

Taxonomy & licenses

171M00000X Case Manager/Care Coordinator Other Service Providers Secondary

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Justin Oyer?

Justin Oyer is registered in NPPES with the primary taxonomy of Addiction (Substance Use Disorder) Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-05-12.