James D. Larson, M.D.
Surgery Physician · Grafton, WI
James D. Larson, M.D. is a surgery physician with a practice address in Grafton, Wisconsin, and NPI 1164632410, issued on May 23, 2007. Check the license (Wisconsin 60324, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- James D. Larson
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 60324 WI
Self-reported in NPPES; status is on the state search - Practice location
- 975 Port Washington RD, Grafton, WI 53024
- Phone
- (262) 329-8100
- Enumerated
- May 23, 2007
- Record last updated
- Jun 13, 2025
- Medicaid ID
- 100030318 WI
- Medicare enrollment
- Enrolled (PECOS I20130806000132); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2007
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 726 in Wisconsin → Look up another NPI →
Also registered at 975 Port Washington RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James D. Larson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 60324Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average surgery physician in 2024
42 Medicare Part D claims for 18 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $4,318.29
4 payments; by number, the most common kind was travel and lodging; the largest payer was Intuitive Surgical, 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.
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
- Aurora Advanced Healthcare, Inc.Mequon, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James D. Larson among 726 surgery physician records in Wisconsin
James D. Larson, M.D. is one of 726 surgery physician records with a practice address in Wisconsin. 72% 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 48% of them.
- NPI issued2007 · 48% of these records are older, 45% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2007 · median 2006 among the 446 with a school on file
- Record last updated2025 · 52% 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 Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 surgery physician records list a practice address in Grafton
They are 5 of the 459 NPPES records with a practice address in Grafton, and 726 surgery physician records in Wisconsin.
All 726 in Wisconsin → Every provider in Grafton → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Allison BrownGrafton, WI 530241275953523
- Michael Erickson, MDGrafton, WI 530241497732408
- Gwenn Pavlovitz, M.D.Grafton, WI 530241447289566
- Nicholas Ward, M.D.Grafton, WI 530241861872723
- Kayla ChapmanHartford, WI 530271053774414
- Joshua Dilday, D.O.Hartford, WI 530271033591185
- Bryan Jewett, M.D.Hartford, WI 530271447360029
- Katelyn Levene, M.D.Hartford, WI 530271770826554
Common questions
What is James D. Larson, M.D.'s NPI number?
James D. Larson, M.D.'s National Provider Identifier (NPI) is 1164632410, issued on May 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James D. Larson, M.D. located?
The NPPES record lists a practice address at 975 Port Washington RD, Grafton, WI, 53024. Phone: (262) 329-8100. Providers update this record themselves, so call before visiting.
How can I verify James D. Larson, M.D.'s license?
NPPES lists Wisconsin license number 60324, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James D. Larson, M.D. prescribe under Medicare Part D?
In 2024, James D. Larson, M.D. had 42 Medicare Part D claims for 18 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions 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.