Quick answers
- Does Sarah N. Westby accept Medicare assignment?
- Yes. Medicare's clinician data says Sarah N. Westby accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Sarah N. Westby see?
- In 2024, CMS data shows 124 Original Medicare patients and 413 services for Sarah N. Westby. This counts Original Medicare only and measures volume, not quality.
- What is Sarah N. Westby's NPI number?
- 1700190089. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Sarah N. Westby, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 124 |
|---|---|
| Services billed to Medicare | 413 |
| Different services or procedures | 32 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)61 services
- Insertion of needle into vein for collection of blood sample (36415)40 services
- Admn sarscov2 vacc 1 dose (90480)38 services
- Administration of influenza virus vaccine (G0008)38 services
- Sarscov2 vac 50 mcg/0.5ml im (91322)37 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure60%
- High cholesterol51%
- Arthritis26%
- Anxiety23%
- Diabetes20%
- Ischemic heart disease17%
Hospitals where Sarah N. Westby works
Medicare's Facility Affiliation Data lists Sarah N. Westby at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- University of WI Hospitals & Clinics AuthorityMadison, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520098
Practice locations
Addresses where Sarah N. Westby is enrolled with Medicare (CMS data updated October 2, 2026).
- 2402 Winnebago StMadison, WI 53704
- 2651 Windsor StSun Prairie, WI 53590 (608) 837‑2206
- 600 Highland AveMadison, WI 53792 (608) 263‑6400
- 7974 UW Health CtMiddleton, WI 53562
Group practices
Medicare enrollment lists Sarah N. Westby as a member of this group (CMS data updated October 2, 2026).
- University of Wisconsin Medical Foundation Inc2,553 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Madison
Clinicians with the same Medicare primary specialty in Madison, WI — not a recommendation.
Other clinicians in University of Wisconsin Medical Foundation Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2010 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1700190089 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians