NPPES file of Aug 9, 2026

James A. Knol, MD

Surgery Physician · Ann Arbor, MI

James A. Knol, MD is a surgery physician with a practice address in Ann Arbor, Michigan, and NPI 1457451296, issued on Sep 22, 2006. Check the license (Michigan 4301040766, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1457451296
Name
James A. Knol
Credential
MD
Primary taxonomy
Surgery Physician 208600000X
License number
4301040766 MI
Self-reported in NPPES; status is on the state search
Practice location
1500 East Medical Center Dr, Ann Arbor, MI 48109
Phone
(734) 936-5738
Enumerated
Sep 22, 2006
Record last updated
Mar 28, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicaid ID
1354951 MI
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 surgery physician records → All 1,376 in Michigan → Look up another NPI →

Also registered at 1500 East Medical Center Dr

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

  1. Samia Abdelnabi, CNMAdvanced Practice Midwife1639404320
  2. Mahshid Abir, MDEmergency Medicine Physician1790988632
  3. Barbara Adams, MDPediatric Rheumatology Physician1962412577
  4. David Adams, MBBSAnesthesiology Physician1346484417
  5. Gaury Adhikary, MDAnesthesiology Physician1629094297
  6. Jeremy Adler, MDPediatric Gastroenterology Physician1033243191

Verify James A. Knol 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 4301040766    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.

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Industry payments in 2024: $13.35

1 payment: education; the largest payer was Eisai Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. James Knol$13.35
  2. Specialty average$3,513.80

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

James A. Knol among 1,376 surgery physician records in Michigan

James A. Knol, MD is one of 1,376 surgery physician records with a practice address in Michigan. 74% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 62% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 52% of these records are
  • Record last updated2012 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in Michigan

There are 1,376 surgery physician records in Michigan.

All 1,376 in Michigan → Every provider in Ann Arbor → Surgery Physician nationwide →

The 8 surgery physician records with the nearest ZIP codes

  1. Richard Burney, MDAnn Arbor, MI 481091538267836
  2. Darrell Campbell, MDAnn Arbor, MI 481091447358718
  3. Alfred Chang, MDAnn Arbor, MI 481091104924372
  4. Clifford Cho, MDAnn Arbor, MI 481091790896124
  5. Vincent Cimmino, MDAnn Arbor, MI 481091235238650
  6. Mark Cohen, M.D.Ann Arbor, MI 481091588605778
  7. Michael Englesbe, MDAnn Arbor, MI 481091780784678
  8. Jonathan Finks, MDAnn Arbor, MI 481091235239971

Common questions

What is James A. Knol, MD's NPI number?

James A. Knol, MD's National Provider Identifier (NPI) is 1457451296, issued on Sep 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James A. Knol, MD located?

The NPPES record lists a practice address at 1500 East Medical Center Dr, Ann Arbor, MI, 48109. Phone: (734) 936-5738. Providers update this record themselves, so call before visiting.

How can I verify James A. Knol, MD's license?

NPPES lists Michigan license number 4301040766, 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.

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.