Lars V. Swanson, MD
Internal Medicine Physician · Oshkosh, WI
Lars V. Swanson, MD is an internal medicine physician with a practice address in Oshkosh, Wisconsin, and NPI 1457346686, issued on Sep 14, 2005. Check the license (Wisconsin 44250, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Lars V. Swanson
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 44250 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2700 W 9TH Ave Ste 203, Oshkosh, WI 54904
- Phone
- (920) 738-2000
- Enumerated
- Sep 14, 2005
- Record last updated
- Mar 19, 2025
- Medicaid ID
- 34213000 WI
- Medicare enrollment
- Enrolled (PECOS I20100604000655); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1999
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 2700 W 9TH Ave Ste 203
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dianna Malkowski, PAPhysician Assistant1811194699
Verify Lars V. Swanson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 44250Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.1 times the Medicare Part D claims of the average internal medicine physician in 2024
19,231 Medicare Part D claims for 985 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 671 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,046 claims
- Losartan Potassium961 claims
- Amlodipine Besylate772 claims
- Rosuvastatin Calcium622 claims
- Omeprazole594 claims
- Levothyroxine Sodium516 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 77.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Ascension Medical Group-Fox Valley Wisconsin IncNeenah, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lars V. Swanson among 2,078 internal medicine physician records in Wisconsin
Lars V. Swanson, MD is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1999 · median 2002 among the 1,098 with a school on file
- Record last updated2025 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 internal medicine physician records list a practice address in Oshkosh
They are 25 of the 1,527 NPPES records with a practice address in Oshkosh, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Oshkosh → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ammar Alzoubi, MDOshkosh, WI 549041598773152
- Lisa Anthony, MDOshkosh, WI 549041659346773
- Mark Cockley, MDOshkosh, WI 549041669456422
- Michael Duffy, MDOshkosh, WI 549041922113182
- Elizabeth Kimbrough, MDOshkosh, WI 549041750366704
- Teresa Lee, MDOshkosh, WI 549041700871209
- Joseph McCausland, DOOshkosh, WI 549041558416644
- Denise Prehn, MDOshkosh, WI 549041992812200
Common questions
What is Lars V. Swanson, MD's NPI number?
Lars V. Swanson, MD's National Provider Identifier (NPI) is 1457346686, issued on Sep 14, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Lars V. Swanson, MD located?
The NPPES record lists a practice address at 2700 W 9TH Ave Ste 203, Oshkosh, WI, 54904. Phone: (920) 738-2000. Providers update this record themselves, so call before visiting.
How can I verify Lars V. Swanson, MD's license?
NPPES lists Wisconsin license number 44250, 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 Lars V. Swanson, MD prescribe under Medicare Part D?
In 2024, Lars V. Swanson, MD had 19,231 Medicare Part D claims for 985 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Lars V. Swanson, MD's MIPS final score?
The 2023 MIPS final score is 77.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.