NPPES file of Aug 9, 2026

Brett A. May, PH.D.

Clinical Neuropsychologist · Grand Rapids, MI

Brett A. May, PH.D. is a clinical neuropsychologist with a practice address in Grand Rapids, Michigan, and NPI 1386792869, issued on Jan 8, 2007. Check the license (Michigan 6301007412, 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
1386792869
Name
Brett A. May
Credential
PH.D.
Primary taxonomy
Clinical Neuropsychologist 103G00000X
License number
6301007412 MI
Self-reported in NPPES; status is on the state search
Practice location
1000 Parchment Dr SE, Grand Rapids, MI 49546
Phone
(616) 957-9112
Enumerated
Jan 8, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(616) 957-2409
Medicare enrollment
Enrolled (PECOS I20050128000117); 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 1000 Parchment Dr SE

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

  1. Joel Bartlett, LLPCounseling Psychologist1306277926
  2. Bryan Bolea, PH.D.Clinical Psychologist1316390396
  3. Theresa Bundy-PhamSocial Worker1679801179
  4. Kelly Culmore, DNPPsychiatric/Mental Health Nurse Practitioner1841760972
  5. Craig De Witt, PSY.D.Clinical Psychologist1679621213
  6. Daniel De Witt, PSY.D.Clinical Psychologist1093863540

Verify Brett A. May 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 6301007412    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

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Bills Medicare through one group practice

  1. Psychology Associates OF Grand Rapids PCGrand Rapids, MI

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

Brett A. May among 133 clinical neuropsychologist records in Michigan

Brett A. May, 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 2007, is newer than 27% of them.

  • NPI issued2007 · 27% of these records are older, 58% 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 updated2007 · 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. Don Boyd, ED.D.Grand Rapids, MI 495461477663599
  2. Mark Devries, PH.D.Grand Rapids, MI 495481265476220
  3. Thomas Halstead, PH.D.Grand Rapids, MI 495481992733653
  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 Brett A. May, PH.D.'s NPI number?

Brett A. May, PH.D.'s National Provider Identifier (NPI) is 1386792869, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Brett A. May, PH.D. located?

The NPPES record lists a practice address at 1000 Parchment Dr SE, Grand Rapids, MI, 49546. Phone: (616) 957-9112. Providers update this record themselves, so call before visiting.

How can I verify Brett A. May, PH.D.'s license?

NPPES lists Michigan license number 6301007412, 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.