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

John David Thiemann, LCSW

Individual provider Clinical Social Worker · NPI 1730985433

John David Thiemann, LCSW is a Clinical Social Worker in Las Vegas, Nevada. Qualified in 2022, 4 years ago. Practices with Optima Change Management, LLC, a 4-clinician group and accepts Medicare assignment. Licensed in Nevada.

Years since qualifying
4
Licensed in
NV
In the registry since
2025
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

3247 S Maryland Pkwy
Las Vegas, NV 89109-2412
Phone: (877) 663-7976
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 11896-C (NV)

Record details

NPI number1730985433
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedFebruary 22, 2025
Last updated in NPPESFebruary 22, 2025
Certification dateFebruary 22, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice Optima Change Management, Llc — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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