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

Shannon G O'Brien, MSW, LCSW, CSAC, CTS

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1366529182

Shannon G O'Brien, MSW, LCSW, CSAC, CTS is a Clinical Social Worker in Milwaukee, Wisconsin. Qualified in 1998, 28 years ago. Practices with Professional Services Group Inc, a 22-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Wisconsin.

Years since qualifying
28
Licensed in
WI
In the registry since
2006
Specialties on file
2
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.
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

2821 N 4th St Ste 139
Milwaukee, WI 53212
Phone: (414) 264-4217
Fax: (414) 264-4218
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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 7197-123 (WI)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 1971-132 (WI)

Record details

NPI number1366529182
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSW , LCSW , CSAC , CTS
Sole proprietorNo
NPI enumeratedNovember 1, 2006
Last updated in NPPESMarch 7, 2011

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice Professional Services Group Inc. — 22 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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