NPPES file of Aug 9, 2026

Thomas A. Londergan, MD

Urology Physician · La Crosse, WI

Thomas A. Londergan, MD is a urology physician with a practice address in La Crosse, Wisconsin, and NPI 1417953324, issued on Jun 24, 2005. Check the license (Wisconsin 35156, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1417953324
Name
Thomas A. Londergan
Credential
MD
Primary taxonomy
Urology Physician 208800000X
License number
35156 WI
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 24, 2005
Record last updated
Sep 14, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicaid ID
32027600 WI
Medicare enrollment
Enrolled (PECOS I20041106000064); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 1988
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 Thomas A. Londergan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 35156
    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

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57% fewer Medicare Part D claims than the average urology physician in 2024

582 Medicare Part D claims for 203 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 32 claims were for opioids.

  1. Thomas Londergan582
  2. Specialty average1,340

Most prescribed

  1. Tamsulosin Hcl126 claims
  2. Finasteride103 claims
  3. Ciprofloxacin Hcl73 claims
  4. Oxybutynin Chloride Er39 claims
  5. Hydrocodone-Acetaminophen29 claims
  6. Lorazepam28 claims

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.

Bills Medicare through 2 group practices

  1. Gundersen Clinic LtdSparta, WI
  2. Gundersen Lutheran Medical Center IncLa Crosse, WI

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

Urology Physician providers in Wisconsin

There are 259 urology physician records in Wisconsin.

Other urology physician records in Wisconsin

  1. Edwin Abel, M.D.Madison, WI1083800510
  2. Jose Agudelo Bodington, MDMadison, WI1497544654
  3. Bahareh Alavi-Dunn, MDGreen Bay, WI1447783501
  4. Gregory Anderson, MDMarshfield, WI1134234610
  5. Matthew Anderson, M.D.Oshkosh, WI1083674212
  6. Michelle Andrew, MDMenomonee Falls, WI1992793327
  7. William Annesley, MDWauwatosa, WI1407899552
  8. Ali Antar, M.D.Madison, WI1770010340
  9. Omar Atassi, M.D.Neenah, WI1154380046
  10. Jon Auger, MDWaukesha, WI1225071475

Common questions

What is Thomas A. Londergan, MD's NPI number?

Thomas A. Londergan, MD's National Provider Identifier (NPI) is 1417953324, issued on Jun 24, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Thomas A. Londergan, 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 Thomas A. Londergan, MD's license?

NPPES lists Wisconsin license number 35156, 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 Thomas A. Londergan, MD prescribe under Medicare Part D?

In 2024, Thomas A. Londergan, MD had 582 Medicare Part D claims for 203 beneficiaries; the average among urology physician prescribers was 1,340. 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.