Gregg Robert Brewer, M.S.
Clinical Social Worker · Oshkosh, WI
Gregg Robert Brewer, M.S. is a clinical social worker with a practice address in Oshkosh, Wisconsin, and NPI 1124465620, issued on May 24, 2013. Check the license (Wisconsin 1071-123, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregg Robert Brewer
- Credential
- M.S.
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License numbers
- 1071-123 WI
610-125 WI
87-124 WI
Self-reported in NPPES; status is on the state search - Practice location
- 700 N Westhaven Dr, Oshkosh, WI 54904
- Phone
- (920) 456-2030
- Enumerated
- May 24, 2013
- Record last updated
- Mar 19, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (920) 456-2025
- Medicare enrollment
- Enrolled (PECOS I20131010001199); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 700 N Westhaven Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tarra CombsClinical Neuropsychologist1912252198
- Lindsay Davel, DNP, APNPPsychiatric/Mental Health Nurse Practitioner1255686416
- Kathryn Glynn, M.D.Interventional Pain Medicine Physician1235143793
- Gayle Johnson, LPCProfessional Counselor1255698551
- Gregory JohnsonPhysician Assistant1568080505
- Alex Kelsey, DOPsychiatry Physician1124524152
Verify Gregg Robert Brewer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 1071-123Check 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
- Thedacare, IncorporatedNeenah, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
78 clinical social worker records list a practice address in Oshkosh
They are 78 of the 1,527 NPPES records with a practice address in Oshkosh, and 4,142 clinical social worker records in Wisconsin.
All 78 in Oshkosh → All 4,142 in Wisconsin → Every provider in Oshkosh →
Other clinical social worker records in Wisconsin
- Kathryn Aalto, LCSWKenosha, WI1023193737
- S. Aardappel, MSWSheboygan, WI1235394834
- Sheena Abbitt, CSWDarlington, WI1679899728
- Daniel Abbott, LCSW, MFTMadison, WI1689681165
- Amy Abel, APSWWausau, WI1649686445
- Cassandra Abel, MSWElkhorn, WI1295155166
- Faye Abler, LCSWBrookfield, WI1366540163
- Queen Liza Aboyah, APSWMadison, WI1023843646
- Barbara Abrams, MSW ICSWMilwaukee, WI1770608093
- Rebecca Abrams, LCSWWauwatosa, WI1710420815
Common questions
What is Gregg Robert Brewer, M.S.'s NPI number?
Gregg Robert Brewer, M.S.'s National Provider Identifier (NPI) is 1124465620, issued on May 24, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Gregg Robert Brewer, M.S. located?
The NPPES record lists a practice address at 700 N Westhaven Dr, Oshkosh, WI, 54904. Phone: (920) 456-2030. Providers update this record themselves, so call before visiting.
How can I verify Gregg Robert Brewer, M.S.'s license?
NPPES lists Wisconsin license number 1071-123, 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.