Ian Koszewski, M.D.
NPI 1073872032 · Otolaryngology Physician · Madison, WI
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ian Koszewski, M.D. is a Otolaryngology Physician provider in Madison, WI (NPI 1073872032).
Provider details
- NPI number
- 1073872032
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 61623 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
406 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Diagnostic Exam of Nasal Passages Using an Endoscope31231 | 126 | $59 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 67 | $33 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 63 | $61 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 56 | $75 |
| Biopsy Or Removal of Nasal Polyp Or Tissue Using an Endoscope31237 | 48 | $191 |
| Computer-Assisted Procedure Outside Membrane Covering Brain61782 | 22 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azelastine Hcl | 35 | 19 |
| Mupirocin | 35 | 15 |
| Budesonide | 32 | — |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 30 | 25 |
| Ipratropium Bromide | 28 | 14 |
| Dupilumabbrand: Dupixent Pen | 18 | — |
| Prednisone | 17 | 17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$310 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-05-11
- Last updated
- 2021-01-11
- Certified
- 2021-01-11
Frequently asked questions
- What is Ian Koszewski's NPI number?
- Ian Koszewski's National Provider Identifier (NPI) is 1073872032, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ian Koszewski's specialty?
- Ian Koszewski is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Ian Koszewski located?
- Ian Koszewski's practice location on file with NPPES is Uw Hospital and Clinics, Madison, WI 53792-0001.
- What is Ian Koszewski's phone number?
- The practice phone number listed in the NPPES registry for Ian Koszewski is (608) 263-0192.
- Does Ian Koszewski accept Medicare?
- Ian Koszewski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ian Koszewski's NPI active?
- Yes — Ian Koszewski's NPI (1073872032) is active in the NPPES registry as of the last update on 2021-01-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.