Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John J Cerny, RN, LADC

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1780744581

John J Cerny, RN, LADC is an Addiction (Substance Use Disorder) Counselor in Gardnerville, Nevada. Licensed in Nevada. Registered with an NPI since 2006.

Licensed in
NV
In the registry since
2006
Specialties on file
2
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
LADC — Licensed Alcohol and Drug Counselor
A licensed addiction counsellor.

See every abbreviation used in this directory →

Practice location Address checks out

1538 Hwy 395 N
Gardnerville, NV 89410
Phone: (775) 782-3671
Fax: (775) 782-6639
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X · Licence 1688 (NV)
Registered Nurse Taxonomy 163W00000X · Licence RN25219 (NV)

Record details

NPI number1780744581
Entity typeIndividual (Type 1)
GenderMale
Credentials RN , LADC
Sole proprietorNo
NPI enumeratedDecember 11, 2006
Last updated in NPPESSeptember 11, 2025
Mailing address4126 Technology Way, Suite 102, Carson City, NV 89706-2009

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