Tia Joann Oestreich, LCSW, SAC-IT
Clinical Social Worker · Milwaukee, WI
Tia Joann Oestreich, LCSW, SAC-IT is a clinical social worker with a practice address in Milwaukee, Wisconsin, and NPI 1134611353, issued on Jun 4, 2018. Check the license (Wisconsin 9328-123, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tia Joann Oestreich
- Credential
- LCSW, SAC-IT
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 9328-123 WI
Self-reported in NPPES; status is on the state search - Practice location
- 4570 S 27TH St, Milwaukee, WI 53221
- Phone
- (414) 672-1353
- Enumerated
- Jun 4, 2018
- Record last updated
- Jun 27, 2023
- Fax
- (414) 672-4265
- Medicaid ID
- 1134611353 WI
- Medicare enrollment
- Enrolled (PECOS I20200128000785); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 4,142 in Wisconsin → Look up another NPI →
Also registered at 4570 S 27TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Alexandra Garcia, MSProfessional Counselor1346125804
- Kimberly Goins, LPC, SAC-ITProfessional Counselor1932246527
- Charlotte Hughes, APNPPsychiatric/Mental Health Nurse Practitioner1467214197
Verify Tia Joann Oestreich in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 9328-123Check 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
- 16TH Street Community Health Center Inc.Milwaukee, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tia Joann Oestreich among 4,142 clinical social worker records in Wisconsin
Tia Joann Oestreich, LCSW, SAC-IT 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 2018, is newer than 61% of them.
- NPI issued2018 · 61% of these records are older, 35% newer
- In a Medicare fileYes · 22% of these records are
- In the CMS Doctors and Clinicians fileYes · 29% of these records are
- Graduated2017 · median 2010 among the 1,186 with a school on file
- Record last updated2023 · 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
- Abdulaahi AhmedMilwaukee, WI 532211508597816
- Amanda Derewicz, LCSWGreenfield, WI 532211366261695
- Kalana Graham, LCSWGreenfield, WI 532211851062855
- Vicki Kachache, MSW, LCSWMilwaukee, WI 532211932360484
- Mohamednajib KahinMilwaukee, WI 532211528792256
- Maria Luna, LCSWMilwaukee, WI 532211023478963
- Patricia Mendoza, APSWGreenfield, WI 532211497487466
- Waleed MohamedMilwaukee, WI 532211851046437
Common questions
What is Tia Joann Oestreich, LCSW, SAC-IT's NPI number?
Tia Joann Oestreich, LCSW, SAC-IT's National Provider Identifier (NPI) is 1134611353, issued on Jun 4, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Tia Joann Oestreich, LCSW, SAC-IT located?
The NPPES record lists a practice address at 4570 S 27TH St, Milwaukee, WI, 53221. Phone: (414) 672-1353. Providers update this record themselves, so call before visiting.
How can I verify Tia Joann Oestreich, LCSW, SAC-IT's license?
NPPES lists Wisconsin license number 9328-123, 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.