NPPES file of Aug 9, 2026

Winslow Gregory Gerrish, PHD

Clinical Psychologist · Boise, ID

Winslow Gregory Gerrish, PHD is a clinical psychologist with a practice address in Boise, Idaho, and NPI 1013297621, issued on Aug 26, 2011. Check the license (Idaho PSY-202684, as entered in NPPES) with the Idaho board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1013297621
Name
Winslow Gregory Gerrish
Credential
PHD
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
PSY-202684 ID
Self-reported in NPPES; status is on the state search
Practice location
777 N Raymond St, Boise, ID 83704
Phone
(208) 514-2500
Enumerated
Aug 26, 2011
Record last updated
Aug 12, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(208) 375-2217
Medicaid ID
1013297621 ID
Medicare enrollment
Enrolled (PECOS I20130618000860); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest clinical psychologist records → All 195 in Idaho → Look up another NPI →

Also registered at 777 N Raymond St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Tracy Adams, DOFamily Medicine Physician1003438730
  2. Dora Aguayo, PHARMDPharmacist1245965987
  3. Tom Ahlrichs, LCSWClinical Social Worker1013135078
  4. Katie Allan, MDFamily Medicine Physician1871348367
  5. Suzanne Allen, M.D.Family Medicine Physician1346286044
  6. Kierney Allsop, MDFamily Medicine Physician1922853415

Verify Winslow Gregory Gerrish in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Idaho board licenses this profession
    Search for license PSY-202684    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Idaho license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Full Circle Health IncBoise, ID

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Winslow Gregory Gerrish among 195 clinical psychologist records in Idaho

Winslow Gregory Gerrish, PHD is one of 195 clinical psychologist records with a practice address in Idaho. 17% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 56% of them.

  • NPI issued2011 · 56% of these records are older, 38% newer
  • In a Medicare fileYes · 17% of these records are
  • In the CMS Doctors and Clinicians fileYes · 27% of these records are
  • Graduated2010 · median 2007 among the 53 with a school on file
  • Record last updated2013 · 49% 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 Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Psychologist providers in Idaho

There are 195 clinical psychologist records in Idaho.

All 195 in Idaho → Every provider in Boise → Clinical Psychologist nationwide →

The 8 clinical psychologist records with the nearest ZIP codes

  1. Robert Bennett, PH.D.Boise, ID 837041962490474
  2. Jason Gage, PH.D.Boise, ID 837041548250699
  3. Michael Harmon, PSY.D.Boise, ID 837041417181108
  4. Becky Huskinson, PSY.D.Boise, ID 837041972645711
  5. Joseph Lipetzky, PSY. D.Boise, ID 837041467440065
  6. Sarah Marion, PH.DBoise, ID 837041518111590
  7. Mark Snow, PHDBoise, ID 837041023162682
  8. Brett Thomas, PH.D.Boise, ID 837041952403552

Common questions

What is Winslow Gregory Gerrish, PHD's NPI number?

Winslow Gregory Gerrish, PHD's National Provider Identifier (NPI) is 1013297621, issued on Aug 26, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Winslow Gregory Gerrish, PHD located?

The NPPES record lists a practice address at 777 N Raymond St, Boise, ID, 83704. Phone: (208) 514-2500. Providers update this record themselves, so call before visiting.

How can I verify Winslow Gregory Gerrish, PHD's license?

NPPES lists Idaho license number PSY-202684, as entered by the provider. Search the Idaho 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.