NPPES file of Aug 9, 2026

Kathryn Denhouter, PHD

Psychologist · Grand Rapids, MI

Kathryn Denhouter, PHD is a psychologist with a practice address in Grand Rapids, Michigan, and NPI 1831135334, issued on Jun 22, 2006. Check the license (Michigan 6301007303, as entered in NPPES) with the Michigan 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
1831135334
Name
Kathryn Denhouter
Credential
PHD
Primary taxonomy
Psychologist 103T00000X
License number
6301007303 MI
Self-reported in NPPES; status is on the state search
Practice location
161 Ottawa Ave NW, Grand Rapids, MI 49503
Phone
(616) 458-0692
Enumerated
Jun 22, 2006
Record last updated
Jul 13, 2026
Fax
(616) 458-8129
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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8 nearest psychologist records → All 2,549 in Michigan → Look up another NPI →

Also registered at 161 Ottawa Ave NW

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

  1. Jeffrey Kieliszewski, PHDPsychologist1285670570
  2. Omar Mangrum, EDDPsychologist1457389157
  3. Robert Shaffer, PHDPsychologist1720016959
  4. Ronald Vanderbeck, PSYDPsychologist1902835481
  5. Donald Vanostenberg, PHDPsychologist1518178607
  6. Michael Vargo, PHDPsychologist1336354935

Verify Kathryn Denhouter in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this profession
    Search for license 6301007303    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 Michigan 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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Kathryn Denhouter among 2,549 psychologist records in Michigan

Kathryn Denhouter, PHD is one of 2,549 psychologist records with a practice address in Michigan. 6% 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 2% of them.

  • NPI issued2006 · 2% of these records are older, 76% newer
  • In a Medicare fileNo · 6% of these records are
  • In the CMS Doctors and Clinicians fileNo · 12% of these records are
  • Record last updated2026 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

207 psychologist records list a practice address in Grand Rapids

They are 207 of the 18,005 NPPES records with a practice address in Grand Rapids, and 2,549 psychologist records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,549 in Michigan → Every provider in Grand Rapids → Psychologist nationwide →

The 8 psychologist records with the nearest ZIP codes

  1. Steven Hamming, PSY.D.Grand Rapids, MI 495031295883213
  2. Jeffrey Kieliszewski, PHDGrand Rapids, MI 495031285670570
  3. Omar Mangrum, EDDGrand Rapids, MI 495031457389157
  4. Jessica Manning, PHDGrand Rapids, MI 495031134410434
  5. Alison McClure, MA, LLPGrand Rapids, MI 495031245474691
  6. Brandee Peikert, PH.D., LLPGrand Rapids, MI 495031902834765
  7. Robert Shaffer, PHDGrand Rapids, MI 495031720016959
  8. Ashley Strang, MA, LLP, CAADCGrand Rapids, MI 495031710283387

Common questions

What is Kathryn Denhouter, PHD's NPI number?

Kathryn Denhouter, PHD's National Provider Identifier (NPI) is 1831135334, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kathryn Denhouter, PHD located?

The NPPES record lists a practice address at 161 Ottawa Ave NW, Grand Rapids, MI, 49503. Phone: (616) 458-0692. Providers update this record themselves, so call before visiting.

How can I verify Kathryn Denhouter, PHD's license?

NPPES lists Michigan license number 6301007303, as entered by the provider. Search the Michigan 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.