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

Tammie Prenger, LISW

Individual provider Clinical Social Worker · NPI 1821769985

Tammie Prenger, LISW is a Clinical Social Worker in Sidney, Ohio. Qualified in 2010, 16 years ago. Practices with Crystal L. Oswalt, Ph D , Counseling and Consulting Services Inc, a 4-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
16
Licensed in
OH
In the registry since
2021
What do these letters mean?
LISW — Licensed Independent Social Worker
A social worker licensed to practise independently.

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Practice location Address checks out

1101 N Vandemark Rd
Sidney, OH 45365-3567
Phone: (937) 710-4616
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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 I.2103008 (OH)

Record details

NPI number1821769985
Entity typeIndividual (Type 1)
GenderFemale
Credentials LISW
Sole proprietorNo
NPI enumeratedSeptember 27, 2021
Last updated in NPPESSeptember 27, 2021
Certification dateSeptember 27, 2021

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Crystal L. Oswalt, Ph.D., Counseling And Consulting Services Inc. — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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