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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John J Cerny, RN, LADC

Addiction (Substance Use Disorder) Counselor in Gardnerville, NV · enumerated 2006.

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

National Provider Identifier

1780744581

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Registry record

Entity type Individual (Type 1)
Name John J Cerny
Credential RN, LADC
Sex Male
Practice address 1538 Hwy 395 North, Gardnerville, NV, 89410
Phone (775) 782-3671
Fax (775) 782-6639
Enumeration date Dec 11, 2006
Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 1688 (NV) Primary
163W00000X Registered Nurse Nursing Service Providers · License RN25219 (NV) Secondary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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

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 John Cerny?
John Cerny 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.