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Dr. Thomas A. Londergan, MD
NPI1417953324PAC ID9133182512
- Medicare services, 2024
- 468
- Medicare patients, 2024
- 327
- Part D claims, 2024
- 582
- Publications
- 1
- Hospital affiliations
- 2
- Practice address
- 1910 South Ave, Heritage Building 2 West, La Crosse, WI 54601
- Practice phone
- Call (608) 775-3176
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Gundersen Lutheran Medical Center - Dialysis
Dialysis Center - Hospital-Based · La Crosse, Wisconsin
Find Dr. Londergan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Thomas A. Londergan is a urologist in La Crosse, Wisconsin
Dr. Londergan practices at Gundersen Lutheran Medical Center - Dialysis in La Crosse, Wisconsin.
Dr. Londergan's NPI, 1417953324, was assigned on June 24, 2005. Dr. Londergan graduated from University of Wisconsin School of Medicine in 1988. Dr. Londergan holds Wisconsin license 35156.
NPI and contact details
- NPI
- 1417953324NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9133182512
- NPI enumeration date
- June 24, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (608) 775-3176
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas A. Londergan practices at Gundersen Lutheran Medical Center - Dialysis in La Crosse, Wisconsin
Dr. Londergan's primary practice is Gundersen Lutheran Medical Center - Dialysis, at 1910 South Ave, Heritage Building 2 West, La Crosse, WI 54601 in La Crosse County. The practice phone is (608) 775-3176.
- Gundersen Lutheran Medical Center - Dialysis1910 South Ave, Heritage Building 2 West, La Crosse, WI 54601 · La Crosse CountyPhone(608) 775-3176
Source: Dmand AI Affiliation Data
Dr. Thomas A. Londergan is affiliated with 5 sites of care and 3 medical groups
Dr. Londergan's primary practice is Gundersen Lutheran Medical Center - Dialysis in La Crosse, Wisconsin. Dr. Londergan is also affiliated with Gundersen Lutheran Medical Center. The medical group on file is Gundersen Lutheran Medical Center. Dmand AI also links Dr. Londergan to 1 more hospital, 2 group practices and clinics and 2 medical groups, each named with a free account. Dr. Londergan's employer is on file too: a dialysis center.
Gundersen Lutheran Medical Center - DialysisPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Thomas A. Londergan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Londergan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Gundersen Lutheran Medical Center - Dialysis | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas A. Londergan is one of 213 urologists in Wisconsin
Urology is Dr. Londergan's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Londergan is licensed in Wisconsin.
Specialties and state licenses
- Urology, WisconsinPrimary
Urologists near Dr. Londergan
Counts of urologists with a Dmand AI profile, by place and practice. Each opens the list.
213urologists in Wisconsin
7urologists in La Crosse
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Thomas A. Londergan billed Medicare for 468 services in 2024
CMS data shows 468 Medicare services from Dr. Londergan across 14 procedure codes in 2024, for 327 Medicare patients. Medicare paid $36,497 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024468
Medicare patients327
Paid by Medicare$36,497
Procedure codes14
Dr. Londergan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 3082024: 24919%
- Office and hospital visits
- 2023: 2062024: 17515%
- Imaging
- 2023: 712024: 4438%
Dr. Londergan compared with the Wisconsin median for urologists, 2024
- Dr. Londergan
- Wisconsin median
- Medicare services
- 468vs 56317% below
- Medicare patients
- 327vs 28814% above
- Part D claims
- 454vs 55017% below
Medians across 215 urologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Londergan's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Londergan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Londergan and other urologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas A. Londergan treated 327 Medicare patients in 2024, average age 73
CMS counts 327 Medicare patients who saw Dr. Londergan in 2024. The largest group is 65 to 74, with 162 patients. 70% of them have high blood pressure, and 63% have high cholesterol. 17% are also on Medicaid. Their average risk score is 1.47, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Londergan's median patient age at 71, with 23% women.
Medicare patients, 2024327
Average age73
Average risk score1.47
Also on Medicaid17%
Dr. Londergan's Medicare patients by age, 2024
Dr. Londergan's Medicare patients by sex, 2024
- Women6018%
- Men26782%
Chronic conditions among Dr. Londergan's Medicare patients, 2024
- High blood pressure70%
- High cholesterol63%
- Cancer37%
- Chronic kidney disease37%
- Diabetes32%
- Arthritis28%
- Ischemic heart disease27%
- Heart failure19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Londergan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women23%
- Men77%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Thomas A. Londergan wrote 582 Medicare Part D claims in 2024
In 2024, Dr. Londergan wrote 582 Medicare Part D claims for 203 patients. 93% of them were for generic drugs. CMS names the drug for 454 of them, across 10 drugs with 11 or more claims each, at $22,040 in total drug cost. In 2023, CMS named 596 claims across 12 drugs.
Part D claims, 2024582
Drugs named by CMS10
Total drug cost$22,040
Part D patients203
Dr. Londergan's Part D claims by kind of drug, 2024
- Generic542 claims93%
- Brand-name40 claims7%
Dr. Londergan's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Londergan's Part D claims, 2024
- Opioids5%32 of 582 claims
- Antibiotics22%128 of 582 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 5962024: 45424%
Drugs named by CMS: 10 in 2024, 12 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Thomas A. Londergan ranks in the 81st percentile for prostate resection in Medicare
Dr. Londergan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 20 procedures of prostate resection by Dr. Londergan, more than 81% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Londergan ranks in Medicare procedure volume
- Prostate resection
- 81st percentile20 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Thomas A. Londergan has 1 publication on record
Dmand AI links 1 paper to Dr. Londergan in 2019. Dr. Londergan's most frequent co-authors are Shanu Nikhil Kothari, MD and Tripurari Mishra, MD.
Papers1
Dr. Londergan's most frequent co-authors
Recent publications by Dr. Londergan
See who Dr. Londergan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Londergan works with, so you can find a warm path to the right urologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Thomas A. Londergan received $226 in industry payments from 2016 to 2022
CMS Open Payments shows 5 general payments to Dr. Londergan from 3 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 79% of the total. Janssen Pharmaceuticals, Inc paid the most, $179.
General payments to Dr. Londergan by program year, 2016 to 2022
General payments to Dr. Londergan by kind, 2016 to 2022
$226in total
- Food and beverage$17979%
- Education$4721%
Companies that paid Dr. Londergan the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Thomas A. Londergan graduated from University of Wisconsin School of Medicine
Dr. Londergan graduated from University of Wisconsin School of Medicine in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Thomas A. Londergan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Thomas A. Londergan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Thomas A. Londergan's NPI number?
Dr. Thomas A. Londergan's NPI number is 1417953324. It was assigned on June 24, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas A. Londergan?
Dr. Thomas A. Londergan is a urologist in La Crosse, Wisconsin. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Thomas A. Londergan practice?
Dr. Londergan practices at 1910 South Ave, Heritage Building 2 West, La Crosse, WI 54601. Dr. Londergan's primary practice is Gundersen Lutheran Medical Center - Dialysis in La Crosse, Wisconsin. Dmand AI also links Dr. Londergan to 1 hospital, 2 group practices and clinics and 2 medical groups.
What is Dr. Thomas A. Londergan's office phone number?
The practice phone on file for Dr. Londergan is (608) 775-3176.
What is Dr. Thomas A. Londergan's medical license number?
Dr. Londergan holds Wisconsin license 35156.
Which hospitals is Dr. Thomas A. Londergan affiliated with?
Dr. Londergan is affiliated with Gundersen Lutheran Medical Center. Dmand AI links Dr. Londergan to 1 more hospital.
What medical group is Dr. Thomas A. Londergan part of?
Dr. Londergan is linked to Gundersen Lutheran Medical Center. Dmand AI links Dr. Londergan to 2 more medical groups.
Does Dr. Thomas A. Londergan accept Medicare?
Yes. CMS data shows Dr. Londergan billed Medicare for 468 services in 2024, and Dr. Londergan accepts Medicare assignment.
How many Medicare patients does Dr. Thomas A. Londergan see?
CMS counts 327 Medicare patients who saw Dr. Londergan in 2024, with an average age of 73.
What services does Dr. Thomas A. Londergan bill to Medicare?
In 2024, Dr. Londergan's most billed Medicare services were surgery: urinary system (52000), office visit, established patient (99213) and ultrasound (76942).
Show 6 more questionsShow fewer questions
Where did Dr. Thomas A. Londergan go to medical school?
Dr. Londergan graduated from University of Wisconsin School of Medicine in 1988.
What drugs does Dr. Thomas A. Londergan prescribe most?
In 2024 Medicare Part D data, Dr. Londergan's most prescribed drugs by claims were Tamsulosin HCl, Finasteride and Ciprofloxacin HCl.
Has Dr. Thomas A. Londergan received payments from drug or device companies?
CMS Open Payments shows $226 in general payments to Dr. Londergan from 3 companies from 2016 to 2022. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Thomas A. Londergan been practicing?
Dr. Londergan graduated from medical school in 1988, 38 years ago.
Does Dr. Thomas A. Londergan do research?
Dmand AI links 1 publication to Dr. Londergan.
Who does Dr. Thomas A. Londergan publish with?
Dr. Londergan's most frequent co-authors are Shanu Nikhil Kothari, MD (1 shared paper) and Tripurari Mishra, MD (1 shared paper).
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