NPPES file of Aug 9, 2026

Sarah N. Westby, PA-C

Physician Assistant · Sun Prairie, WI

Sarah N. Westby, PA-C is a physician assistant with a practice address in Sun Prairie, Wisconsin, and NPI 1700190089, issued on Jul 29, 2010. Check the license (Wisconsin 2645, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1700190089
Name
Sarah N. Westby
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
2645 WI
Self-reported in NPPES; status is on the state search
Practice location
2651 Windsor St, Sun Prairie, WI 53590
Phone
(608) 837-2206
Enumerated
Jul 29, 2010
Record last updated
Jul 29, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(608) 837-9752
Medicare enrollment
Enrolled (PECOS I20200109000112); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2651 Windsor St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Paige Armga, PAMedical Physician Assistant1710430459
  2. Jacob Bryan, M.D.Family Medicine Physician1710114657
  3. Maxwell Butler, MDFamily Medicine Physician1326787755
  4. Maria Carwile, APNP, FNP-BCFamily Nurse Practitioner1053111260
  5. Lesley Coert, MDFamily Medicine Physician1053389122
  6. Katharine Greenfield, M.D.Family Medicine Physician1588026025

Verify Sarah N. Westby in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 2645
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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33% fewer Medicare Part D claims than the average physician assistant in 2024

557 Medicare Part D claims for 168 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Sarah Westby557
  2. Specialty average830

Most prescribed

  1. Atorvastatin Calcium31 claims
  2. Gabapentin28 claims
  3. Sertraline Hcl24 claims
  4. Lisinopril23 claims
  5. Eliquis20 claims
  6. Hydrochlorothiazide20 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.

Bills Medicare through one group practice

  1. 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).

6 physician assistant records list a practice address in Sun Prairie

They are 6 of the 485 NPPES records with a practice address in Sun Prairie, and 3,475 physician assistant records in Wisconsin.

Other physician assistant records in Wisconsin

  1. Amber Abraham, PA-CGreen Bay, WI1598993297
  2. Roopa AchuriNeenah, WI1225531635
  3. Carleen Acker, PA-CMadison, WI1447514773
  4. Lauren Ackerman, PA-CCudahy, WI1992357982
  5. Jocelyn Acompanado, PA-CSheboygan, WI1770521486
  6. Kora Adam, PA-CBurlington, WI1952666554
  7. Stephanie Adamczyk, PAMilwaukee, WI1063007441
  8. Kristen Adamo, PANew Berlin, WI1437179520
  9. Beth Adams, PA-CMequon, WI1801237540
  10. Eric Adams, PAGreen Bay, WI1528445087

Common questions

What is Sarah N. Westby, PA-C's NPI number?

Sarah N. Westby, PA-C's National Provider Identifier (NPI) is 1700190089, issued on Jul 29, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Sarah N. Westby, PA-C located?

The NPPES record lists a practice address at 2651 Windsor St, Sun Prairie, WI, 53590. Phone: (608) 837-2206. Providers update this record themselves, so call before visiting.

How can I verify Sarah N. Westby, PA-C's license?

NPPES lists Wisconsin license number 2645, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Sarah N. Westby, PA-C prescribe under Medicare Part D?

In 2024, Sarah N. Westby, PA-C had 557 Medicare Part D claims for 168 beneficiaries; the average among physician assistant prescribers was 830. 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.