Ian Joseph Koszewski, M.D.
Otolaryngology Physician · Madison, WI
Ian Joseph Koszewski, M.D. is an otolaryngology physician with a practice address in Madison, Wisconsin, and NPI 1073872032, issued on May 11, 2012. Check the license (Wisconsin 61623, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Ian Joseph Koszewski
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- 61623 WI
Self-reported in NPPES; status is on the state search - Practice location
- UW Hospital And Clinics, Madison, WI 53792
- Phone
- (608) 263-0192
- Enumerated
- May 11, 2012
- Record last updated
- Jan 11, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180905002242); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 231 in Wisconsin → Look up another NPI →
Also registered at UW Hospital And Clinics
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- James Bauer, M.D.Anatomic Pathology & Clinical Pathology Physician1902249543
- Lisa BodenhamerPsychiatry Physician1255750733
Verify Ian Joseph Koszewski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 61623Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average otolaryngology physician in 2024
288 Medicare Part D claims for 113 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Azelastine Hcl35 claims
- Mupirocin35 claims
- Budesonide32 claims
- Amoxicillin-Clavulanate Potass30 claims
- Ipratropium Bromide28 claims
- Dupixent Pen18 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.
Industry payments in 2024: $309.58
2 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 6,429 providers of this specialty with any payment received $1,922.50 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
- University OF Wisconsin Medical Foundation IncMadison, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ian Joseph Koszewski among 231 otolaryngology physician records in Wisconsin
Ian Joseph Koszewski, M.D. is one of 231 otolaryngology physician records with a practice address in Wisconsin. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 70% of them.
- NPI issued2012 · 70% of these records are older, 27% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2012 · median 2004 among the 147 with a school on file
- Record last updated2021 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Wisconsin
There are 231 otolaryngology physician records in Wisconsin.
All 231 in Wisconsin → Every provider in Madison → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Jason Brant, MDMadison, WI 537921821223942
- Seth Dailey, MDMadison, WI 537921346204989
- Ruth DavisMadison, WI 537921023559374
- Charles Ford, MDMadison, WI 537921013972728
- David Francis, MD MSMadison, WI 537921154430072
- Tiffany Glazer, MDMadison, WI 537921629365135
- Gregory Hartig, MDMadison, WI 537921386608966
- Lucas Leonhard, M.D.Madison, WI 537921568825834
Common questions
What is Ian Joseph Koszewski, M.D.'s NPI number?
Ian Joseph Koszewski, M.D.'s National Provider Identifier (NPI) is 1073872032, issued on May 11, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Ian Joseph Koszewski, M.D. located?
The NPPES record lists a practice address at UW Hospital And Clinics, Madison, WI, 53792. Phone: (608) 263-0192. Providers update this record themselves, so call before visiting.
How can I verify Ian Joseph Koszewski, M.D.'s license?
NPPES lists Wisconsin license number 61623, 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 Ian Joseph Koszewski, M.D. prescribe under Medicare Part D?
In 2024, Ian Joseph Koszewski, M.D. had 288 Medicare Part D claims for 113 beneficiaries; the average among otolaryngology physician prescribers was 541. 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.