NPPES file of Aug 9, 2026

James Malleis, MD

Anatomic Pathology & Clinical Pathology Physician · Grand Rapids, MI

James Malleis, MD is an anatomic pathology & clinical pathology physician with a practice address in Grand Rapids, Michigan, and NPI 1255836847, issued on Mar 27, 2018. Check the license (Michigan 4301509236, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255836847
Name
James Malleis
Credential
MD
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License number
4301509236 MI
Self-reported in NPPES; status is on the state search
Practice location
35 Michigan St NE Ste 6330, Grand Rapids, MI 49503
Phone
(800) 475-6236
Enumerated
Mar 27, 2018
Record last updated
Jul 5, 2023
Medicare enrollment
Enrolled (PECOS I20230705002596); accepts Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 2018
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.
Download card Updates feed

Also registered at 35 Michigan St NE Ste 6330

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

  1. Nada NaiyerClinical Pathology/Laboratory Medicine Physician1154826360

Verify James Malleis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301509236
    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
Open 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

The practice group's MIPS final score for 2023 (Medicare payment program): 83.9 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score86.3
  2. Costout of 100 · 30%67.4
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $28.79

1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 2,607 providers of this specialty with any payment received $3,565.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. James Malleis$28.79
  2. Specialty average$3,565.00

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Michigan Pathology Specialists PCLudington, MI

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

James Malleis among 561 anatomic pathology & clinical pathology physician records in Michigan

James Malleis, MD is one of 561 anatomic pathology & clinical pathology physician records with a practice address in Michigan. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 88% of them.

  • NPI issued2018 · 88% of these records are older, 11% newer
  • In a Medicare fileYes · 61% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated2018 · median 2002 among the 306 with a school on file
  • Record last updated2023 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anatomic Pathology & Clinical Pathology Physician providers in Michigan

There are 561 anatomic pathology & clinical pathology physician records in Michigan.

The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes

  1. Kay Aardema, MDGrand Rapids, MI 495031407840051
  2. Britni BryantGrand Rapids, MI 495031881012425
  3. Mihaela Chiselite, M.D.Grand Rapids, MI 495031538390489
  4. William Chopp, MDGrand Rapids, MI 495031619024585
  5. Lindsey Durowoju, MDGrand Rapids, MI 495031174085799
  6. Brandon Ellsworth, MDGrand Rapids, MI 495031689848459
  7. David Graham, MDGrand Rapids, MI 495031285620435
  8. Rebecca Kunak, DOGrand Rapids, MI 495031891173647

Common questions

What is James Malleis, MD's NPI number?

James Malleis, MD's National Provider Identifier (NPI) is 1255836847, issued on Mar 27, 2018. An NPI identifies a provider in billing; it is not a license.

Where is James Malleis, MD located?

The NPPES record lists a practice address at 35 Michigan St NE Ste 6330, Grand Rapids, MI, 49503. Phone: (800) 475-6236. Providers update this record themselves, so call before visiting.

How can I verify James Malleis, MD's license?

NPPES lists Michigan license number 4301509236, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is James Malleis, MD's MIPS final score?

The 2023 MIPS final score is 83.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.