NPPES file of Aug 9, 2026

Lonnie D. Simmons, MD

Diagnostic Radiology Physician · La Crosse, WI

Lonnie D. Simmons, MD is a diagnostic radiology physician with a practice address in La Crosse, Wisconsin, and NPI 1851395735, issued on Jun 9, 2005. Check the license (Wisconsin 40661, as entered in NPPES) on the Wisconsin Medical Examining Board; 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
1851395735
Name
Lonnie D. Simmons
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License numbers
40661 WI
34306 IA
44394 MN
Self-reported in NPPES; status is on the state search
Practice location
1836 South Ave, La Crosse, WI 54601
Phone
(608) 782-7300
Enumerated
Jun 9, 2005
Record last updated
Sep 22, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicaid ID
32594300 WI
Medicare enrollment
Enrolled (PECOS I20040430000525); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 1993
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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Also registered at 1836 South Ave

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

  1. Frank Aberger, MDGastroenterology Physician1396748711
  2. Bradley Abicht, DPMPodiatrist1962632166
  3. Carter Abicht, DOAnesthesiology Physician1932736642
  4. Grace AbichtCertified Registered Nurse Anesthetist1003651555
  5. Paul Abicht, CRNACertified Registered Nurse Anesthetist1528061843
  6. Mateen Abidi, M.DCardiovascular Disease Physician1730333980

Verify Lonnie D. Simmons in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 40661    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 Wisconsin 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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Bills Medicare through 10 group practices

  1. Black River Health IncBlack River Falls, WI
  2. Gundersen Clinic LtdOnalaska, WI
  3. Gundersen Lutheran Medical Center IncLa Crosse, WI
  4. Moundview Memorial Hospital And Clinics, Inc.Friendship, WI
  5. Palmer Lutheran Health Center IncFayette, IA
  6. Saint Elizabeths Hospital OF Wabasha IncWabasha, MN
  7. St Joseph's Health Services IncLa Crosse, WI
  8. Tri-County Memorial Hospital IncWhitehall, WI
  9. Vernon Memorial Healthcare IncViroqua, WI
  10. Veterans Memorial Hospital City OF Waukon IAWaukon, IA

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

60 diagnostic radiology physician records list a practice address in La Crosse

They are 60 of the 3,735 NPPES records with a practice address in La Crosse, and 1,005 diagnostic radiology physician records in Wisconsin.

All 60 in La Crosse → All 1,005 in Wisconsin → Every provider in La Crosse →

Other diagnostic radiology physician records in Wisconsin

  1. Ibrahim AbdallaMadison, WI1467266809
  2. James Aceto, M.D.Mequon, WI1609858158
  3. Mohit Agarwal, MDMilwaukee, WI1265864169
  4. Sarah Agnew, RT (R).Madison, WI1730742776
  5. Serra Aktan, MDMadison, WI1427589662
  6. Maysoon Al-Hihi, MDMilwaukee, WI1093741399
  7. Giustino Albanese, M.D.Madison, WI1265634307
  8. Philip Albert, M.D.Wausau, WI1073619623
  9. Saad Ali, M.D.Milwaukee, WI1467617662
  10. Hailey Allen, M.D.Madison, WI1619235157

Common questions

What is Lonnie D. Simmons, MD's NPI number?

Lonnie D. Simmons, MD's National Provider Identifier (NPI) is 1851395735, issued on Jun 9, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Lonnie D. Simmons, MD located?

The NPPES record lists a practice address at 1836 South Ave, La Crosse, WI, 54601. Phone: (608) 782-7300. Providers update this record themselves, so call before visiting.

How can I verify Lonnie D. Simmons, MD's license?

NPPES lists Wisconsin license number 40661, 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.

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.