Dr. Sameer K. Mathur, MD PHD
Pediatrics (Pediatric Allergy/Immunology Physician)
- Medicare participating
At a glance
- Medical school
- Northwestern University Feinberg Medical School (2000)
- Years since graduation
- 26
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 139
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2000Medical school: Northwestern University Feinberg Medical School
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Pediatric Allergy/Immunology Physician primary
WI license 48548
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- University of Wi Hospitals & Clinics Authority Madison, WI
- Unitypoint Health - Meriter Madison, WI
Medical groups
- University of Wisconsin Medical Foundation Inc (2,553 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 139
- Services billed
- 287
- Patients’ average age
- 71
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 20-29 minutes | 83 | 76 |
| Established patient office or other outpatient visit, 30-39 minutes | 47 | 42 |
| Test to measure expiratory airflow and volume | 45 | 38 |
| New patient office or other outpatient visit, 45-59 minutes | 20 | 20 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Fluticasone Propionate Other prescribers in Madison, WI | 101 |
| Albuterol Sulfate Hfa (albuterol sulfate) Other prescribers in Madison, WI | 76 |
| Montelukast Sodium Other prescribers in Madison, WI | 64 |
| Ipratropium Bromide Other prescribers in Madison, WI | 54 |
| Breo Ellipta (fluticasone/vilanterol) Other prescribers in Madison, WI | 50 |
| Prednisone Other prescribers in Madison, WI | 48 |
| Fluticasone-Salmeterol (fluticasone propion/salmeterol) Other prescribers in Madison, WI | 40 |
| Wixela Inhub (fluticasone propion/salmeterol) Other prescribers in Madison, WI | 38 |
| Azelastine Hcl Other prescribers in Madison, WI | 37 |
| Ventolin Hfa (albuterol sulfate) Other prescribers in Madison, WI | 32 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 5 companies reported 18 payments worth $26,434 in total to this clinician.
| Genzyme Corporation | $11,424 |
|---|---|
| Novartis Pharmaceuticals Corporation | $10,189 |
| GlaxoSmithKline, LLC. | $2,600 |
| AstraZeneca Pharmaceuticals LP | $2,187 |
| Amgen Inc. | $34.00 |
| Consulting Fee | $22,786 |
|---|---|
| Travel and Lodging | $2,746 |
| Compensation for services other than consulting (speaking, faculty) | $450 |
| Food and Beverage | $399 |
| Education | $53.31 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Novartis Pharmaceuticals Corporation May 2, 2025 | Consulting Fee | $8,800 |
| Genzyme Corporation Apr 25, 2025 | Consulting Fee DUPIXENT · Immunology | $7,735 |
| GlaxoSmithKline, LLC. Jun 11, 2025 | Consulting Fee | $2,600 |
| Genzyme Corporation Apr 25, 2025 | Consulting Fee DUPIXENT · Immunology | $1,719 |
| AstraZeneca Pharmaceuticals LP Dec 10, 2025 | Consulting Fee AIRSUPRA · Respiratory | $1,611 |
| Novartis Pharmaceuticals Corporation May 1, 2025 | Travel and Lodging travel to Whippany, NJ · in-kind | $805 |
| Genzyme Corporation Apr 25, 2025 | Travel and Lodging DUPIXENT · Immunology · travel to Cambridge, MA · in-kind | $775 |
| Genzyme Corporation Apr 25, 2025 | Travel and Lodging DUPIXENT · Immunology · travel to Cambridge, MA · in-kind | $707 |
| AstraZeneca Pharmaceuticals LP Aug 26, 2025 | Compensation for services other than consulting (speaking, faculty) TEZSPIRE · Respiratory Company’s descriptionSpeaker Fee | $450 |
| Genzyme Corporation Apr 25, 2025 | Consulting Fee DUPIXENT · Immunology | $321 |
All 15 payments other than meals, newest first
| Company | What it was for | Amount |
|---|---|---|
| AstraZeneca Pharmaceuticals LP Dec 10, 2025 | Consulting Fee AIRSUPRA · Respiratory | $1,611 |
| Amgen Inc. Sep 18, 2025 | Education in-kind | $34.00 |
| AstraZeneca Pharmaceuticals LP Aug 26, 2025 | Compensation for services other than consulting (speaking, faculty) TEZSPIRE · Respiratory Company’s descriptionSpeaker Fee | $450 |
| GlaxoSmithKline, LLC. Jun 11, 2025 | Consulting Fee | $2,600 |
| Novartis Pharmaceuticals Corporation May 2, 2025 | Consulting Fee | $8,800 |
| Novartis Pharmaceuticals Corporation May 2, 2025 | Travel and Lodging travel to EAST HANOVER, NJ · in-kind | $228 |
| Novartis Pharmaceuticals Corporation May 2, 2025 | Travel and Lodging travel to EAST HANOVER, NJ | $211 |
| Novartis Pharmaceuticals Corporation May 2, 2025 | Travel and Lodging travel to EAST HANOVER, NJ · in-kind | $20.00 |
| Novartis Pharmaceuticals Corporation May 1, 2025 | Travel and Lodging travel to Whippany, NJ · in-kind | $805 |
| Novartis Pharmaceuticals Corporation May 1, 2025 | Education in-kind | $19.31 |
| Genzyme Corporation Apr 25, 2025 | Consulting Fee DUPIXENT · Immunology | $7,735 |
| Genzyme Corporation Apr 25, 2025 | Consulting Fee DUPIXENT · Immunology | $1,719 |
| Genzyme Corporation Apr 25, 2025 | Travel and Lodging DUPIXENT · Immunology · travel to Cambridge, MA · in-kind | $775 |
| Genzyme Corporation Apr 25, 2025 | Travel and Lodging DUPIXENT · Immunology · travel to Cambridge, MA · in-kind | $707 |
| Genzyme Corporation Apr 25, 2025 | Consulting Fee DUPIXENT · Immunology | $321 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.