Gregory S. Cowan, PHD
Clinical Psychologist · Wausau, WI
Gregory S. Cowan, PHD is a clinical psychologist with a practice address in Wausau, Wisconsin, and NPI 1235166828, issued on Jun 27, 2006. Check the license (Wisconsin 2343, as entered in NPPES) with the Wisconsin board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Gregory S. Cowan
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 2343 WI
Self-reported in NPPES; status is on the state search - Practice location
- 425 Wind Ridge Dr, Wausau, WI 54401
- Phone
- (715) 675-3391
- Enumerated
- Jun 27, 2006
- Record last updated
- Apr 27, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (715) 675-5255
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 728 in Wisconsin → Look up another NPI →
Also registered at 425 Wind Ridge Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cheryl Bliven, NPOccupational Health Nurse Practitioner1174955538
- Lynn Buhmann, NPFamily Nurse Practitioner1992731442
- Quang Cao, MDFamily Medicine Physician1093196032
- Adam Clements, DOFamily Medicine Physician1033477997
- Taylor DeboerPharmacist1043027493
- Filagot Eshete, MDStudent in an Organized Health Care Education/Training Program1336985670
Verify Gregory S. Cowan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 2343Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Gregory S. Cowan among 728 clinical psychologist records in Wisconsin
Gregory S. Cowan, PHD is one of 728 clinical psychologist records with a practice address in Wisconsin. 27% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 68% newer
- In a Medicare fileNo · 27% of these records are
- In the CMS Doctors and Clinicians fileNo · 34% of these records are
- Record last updated2009 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Psychologist providers in Wisconsin
There are 728 clinical psychologist records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 728 in Wisconsin → Every provider in Wausau → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Allyson Ende, PSY.D.Wausau, WI 544011487866455
- Janel Harper, PH.DWausau, WI 544011659244242
- Stacy Luther, PSYDWausau, WI 544011649666926
- Heather Meggers-Wright, PH.D.Wausau, WI 544011376989962
- Alexandra Montgomery, PSYDWausau, WI 544011558114926
- Daniel Paulus, PHDWausau, WI 544011518563915
- Brianna Rosenow, PSY.D.Wausau, WI 544011083466577
- Shannon Schaefer, PH.D.Wausau, WI 544011972616795
Common questions
What is Gregory S. Cowan, PHD's NPI number?
Gregory S. Cowan, PHD's National Provider Identifier (NPI) is 1235166828, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory S. Cowan, PHD located?
The NPPES record lists a practice address at 425 Wind Ridge Dr, Wausau, WI, 54401. Phone: (715) 675-3391. Providers update this record themselves, so call before visiting.
How can I verify Gregory S. Cowan, PHD's license?
NPPES lists Wisconsin license number 2343, 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. 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.