Shannon G. O'Brien, MSW, LCSW, CSAC,CTS
Clinical Social Worker · Milwaukee, WI
Shannon G. O'Brien, MSW, LCSW, CSAC,CTS is a clinical social worker with a practice address in Milwaukee, Wisconsin, and NPI 1366529182, issued on Nov 1, 2006. Check the license (Wisconsin 7197-123, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Shannon G. O'Brien
- Credential
- MSW, LCSW, CSAC,CTS
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License numbers
- 7197-123 WI
1971-132 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2821 N. 4TH Street, Milwaukee, WI 53212
- Phone
- (414) 264-4217
- Enumerated
- Nov 1, 2006
- Record last updated
- Mar 7, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (414) 264-4218
- Medicaid ID
- 39397100 WI
- Medicare enrollment
- Enrolled (PECOS I20040116000553); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 4,142 in Wisconsin → Look up another NPI →
Verify Shannon G. O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 7197-123Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Professional Services Group Inc.West Allis, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shannon G. O'Brien among 4,142 clinical social worker records in Wisconsin
Shannon G. O'Brien, MSW, LCSW, CSAC,CTS is one of 4,142 clinical social worker records with a practice address in Wisconsin. 22% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 80% newer
- In a Medicare fileYes · 22% of these records are
- In the CMS Doctors and Clinicians fileYes · 29% of these records are
- Graduated1998 · median 2010 among the 1,186 with a school on file
- Record last updated2011 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
608 clinical social worker records list a practice address in Milwaukee
They are 608 of the 18,389 NPPES records with a practice address in Milwaukee, and 4,142 clinical social worker records in Wisconsin.
All 4,142 in Wisconsin → Every provider in Milwaukee → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Mike Bauer, MSWMilwaukee, WI 532121801954102
- Robin Bergeon, LCSWMilwaukee, WI 532121821136540
- Natalie Bui, MSW, LCSWMilwaukee, WI 532121366870255
- Elizabeth Fehler, MSWMilwaukee, WI 532121568666865
- Alexander Hardy, LCSWMilwaukee, WI 532121144594193
- Clorine Harris, LCSWMilwaukee, WI 532121164697132
- Diana Johnstone, LCSWMilwaukee, WI 532121740454057
- Ronnie PolkMilwaukee, WI 532121912133794
Common questions
What is Shannon G. O'Brien, MSW, LCSW, CSAC,CTS's NPI number?
Shannon G. O'Brien, MSW, LCSW, CSAC,CTS's National Provider Identifier (NPI) is 1366529182, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Shannon G. O'Brien, MSW, LCSW, CSAC,CTS located?
The NPPES record lists a practice address at 2821 N. 4TH Street, Milwaukee, WI, 53212. Phone: (414) 264-4217. Providers update this record themselves, so call before visiting.
How can I verify Shannon G. O'Brien, MSW, LCSW, CSAC,CTS's license?
NPPES lists Wisconsin license number 7197-123, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.