NPPES file of Aug 9, 2026

Jan M. Deroest, PSY.D.

Clinical Psychologist · Troutdale, OR

Jan M. Deroest, PSY.D. is a clinical psychologist with a practice address in Troutdale, Oregon, and NPI 1114106028, issued on Oct 26, 2007. Check the license (Oregon 1842, as entered in NPPES) with the Oregon board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1114106028
Name
Jan M. Deroest
Credential
PSY.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License numbers
1842 OR
PY 00003927 WA
Self-reported in NPPES; status is on the state search
Practice location
350 SW 30TH CT, Troutdale, OR 97060
Phone
(503) 475-3274
Enumerated
Oct 26, 2007
Record last updated
Jul 23, 2009 (not updated in 17 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Jan M. Deroest in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oregon board licenses this profession
    Search for license 1842    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
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2 clinical psychologist records list a practice address in Troutdale

They are 2 of the 139 NPPES records with a practice address in Troutdale, and 1,143 clinical psychologist records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2 in Troutdale → All 1,143 in Oregon → Every provider in Troutdale →

Other clinical psychologist records in Oregon

  1. Sean Aaron, PHDPortland, OR1578047403
  2. Chloe Ackerman, PSYDScappoose, OR1568720928
  3. Renata Ackermann, PHDPortland, OR1053453050
  4. Wendi Adams, PSY.DPortland, OR1013965425
  5. Michelle Adkins-Hepler, PSYDPortland, OR1205016359
  6. Karim Afzal, PH.D.Portland, OR1982769204
  7. Kyle Ahlf, PSYDBend, OR1902104912
  8. Karyn Aho, PH.D.Eugene, OR1295815009
  9. Normund Akots, PHD, MSPortland, OR1477534360
  10. Patricia Albrecht, PSY.D.Portland, OR1568663151

Common questions

What is Jan M. Deroest, PSY.D.'s NPI number?

Jan M. Deroest, PSY.D.'s National Provider Identifier (NPI) is 1114106028, issued on Oct 26, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Jan M. Deroest, PSY.D. located?

The NPPES record lists a practice address at 350 SW 30TH CT, Troutdale, OR, 97060. Phone: (503) 475-3274. Providers update this record themselves, so call before visiting.

How can I verify Jan M. Deroest, PSY.D.'s license?

NPPES lists Oregon license number 1842, as entered by the provider. Search the Oregon 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.

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.