Eric Willmarth, PHD
Clinical Psychologist · Grand Rapids, MI
Eric Willmarth, PHD is a clinical psychologist with a practice address in Grand Rapids, Michigan, and NPI 1275638041, issued on Sep 14, 2006. Check the license (Michigan 6301002796, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Eric Willmarth
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 6301002796 MI
Self-reported in NPPES; status is on the state search - Practice location
- 4100 Lake Dr SE, Grand Rapids, MI 49546
- Phone
- (616) 285-1377
- Enumerated
- Sep 14, 2006
- Record last updated
- Nov 19, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (616) 285-1006
- Medicare enrollment
- Enrolled (PECOS I20100312000376); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 2,965 in Michigan → Look up another NPI →
Also registered at 4100 Lake Dr SE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Eric Willmarth in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 6301002796Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Michigan Behavioral Consultants PCGrand Rapids, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Eric Willmarth among 2,965 clinical psychologist records in Michigan
Eric Willmarth, PHD is one of 2,965 clinical psychologist records with a practice address in Michigan. 13% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 79% newer
- In a Medicare fileYes · 13% of these records are
- In the CMS Doctors and Clinicians fileYes · 24% of these records are
- Graduated1999 · median 2005 among the 697 with a school on file
- Record last updated2008 · 62% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
183 clinical psychologist records list a practice address in Grand Rapids
They are 183 of the 18,005 NPPES records with a practice address in Grand Rapids, and 2,965 clinical psychologist records in Michigan.
All 2,965 in Michigan → Every provider in Grand Rapids → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Theresa Anderson-Varney, PHDGrand Rapids, MI 495461760489793
- Dorothy Garnett, MA LLPGrand Rapids, MI 495461427028463
- David Hamilton, PSYDGrand Rapids, MI 495461326008483
- M Kay Hannah, PHD LLPGrand Rapids, MI 495461336119379
- Barbara Homrich, MA LLPGrand Rapids, MI 495461760469027
- Theodore Jansma, PHDGrand Rapids, MI 495461316924525
- Michael Makedonsky, PHDGrand Rapids, MI 495461760466056
- Lori Reineke, PH.D.Grand Rapids, MI 495461790765170
Common questions
What is Eric Willmarth, PHD's NPI number?
Eric Willmarth, PHD's National Provider Identifier (NPI) is 1275638041, issued on Sep 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Eric Willmarth, PHD located?
The NPPES record lists a practice address at 4100 Lake Dr SE, Grand Rapids, MI, 49546. Phone: (616) 285-1377. Providers update this record themselves, so call before visiting.
How can I verify Eric Willmarth, PHD's license?
NPPES lists Michigan license number 6301002796, 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.
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.