NPPES file of Aug 9, 2026

Mark E. Devries, PH.D.

Clinical Neuropsychologist · Grand Rapids, MI

Mark E. Devries, PH.D. is a clinical neuropsychologist with a practice address in Grand Rapids, Michigan, and NPI 1265476220, issued on Jun 16, 2006. Check the license (Michigan 6301008596, as entered in NPPES) with the Michigan 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
1265476220
Name
Mark E. Devries
Credential
PH.D.
Primary taxonomy
Clinical Neuropsychologist 103G00000X
License number
6301008596 MI
Self-reported in NPPES; status is on the state search
Practice location
300 68TH St SE, Grand Rapids, MI 49548
Phone
(616) 455-5000
Enumerated
Jun 16, 2006
Record last updated
Feb 23, 2026
Medicare enrollment
Enrolled (PECOS I20031229000588); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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.
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8 nearest clinical neuropsychologist records → All 133 in Michigan → Look up another NPI →

Also registered at 300 68TH St SE

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

  1. Salman Abdul MajeedPsychiatry Physician1144896218
  2. Kimberly AbedClinical Social Worker1568864775
  3. Eric Achtyes, MDPsychiatry Physician1780665976
  4. Matthew AdamsBehavior Analyst1770290561
  5. Andrae Agnew, LMSWClinical Social Worker1306481023
  6. Kyle AhonenChild & Adolescent Psychiatry Physician1326579426

Verify Mark E. Devries 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 6301008596    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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One hospital affiliation

  1. Pine Rest Christian Mental Health ServicesGrand Rapids, MI · Psychiatric

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).

Mark E. Devries among 133 clinical neuropsychologist records in Michigan

Mark E. Devries, PH.D. is one of 133 clinical neuropsychologist records with a practice address in Michigan. 35% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 73% newer
  • In a Medicare fileYes · 35% of these records are
  • In the CMS Doctors and Clinicians fileYes · 44% of these records are
  • Graduated1992 · median 2007 among the 57 with a school on file
  • Record last updated2026 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103G00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Neuropsychologist providers in Michigan

There are 133 clinical neuropsychologist records in Michigan.

All 133 in Michigan → Every provider in Grand Rapids → Clinical Neuropsychologist nationwide →

The 8 clinical neuropsychologist records with the nearest ZIP codes

  1. Thomas Halstead, PH.D.Grand Rapids, MI 495481992733653
  2. Don Boyd, ED.D.Grand Rapids, MI 495461477663599
  3. Brett May, PH.D.Grand Rapids, MI 495461386792869
  4. Nicole Caugherty HanGrand Rapids, MI 495251801359872
  5. Draycen DecatorGrand Rapids, MI 495251447738877
  6. Stevie Knight, PHDGrand Rapids, MI 495251770367153
  7. Rochelle Manor, PH.D.Grand Rapids, MI 495251972651396
  8. Jennifer Maurer, PSY.D.Grand Rapids, MI 495251831452416

Common questions

What is Mark E. Devries, PH.D.'s NPI number?

Mark E. Devries, PH.D.'s National Provider Identifier (NPI) is 1265476220, issued on Jun 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark E. Devries, PH.D. located?

The NPPES record lists a practice address at 300 68TH St SE, Grand Rapids, MI, 49548. Phone: (616) 455-5000. Providers update this record themselves, so call before visiting.

How can I verify Mark E. Devries, PH.D.'s license?

NPPES lists Michigan license number 6301008596, 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. 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.