Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

MS. Sarah Kathryn Van Rossum-O'Connell, PA

Individual provider Physician Assistant · NPI 1164179792

MS. Sarah Kathryn Van Rossum-O'Connell, PA is a Physician Assistant in Saint Louis, Missouri. Graduated from University of Missouri, Kansas City, School of Medicine in 2023, 3 years ago. Practices with Mercy Clinic Cardiovascular and Thoracic Surgery LLC, a 23-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
3
Trained at
University of Missouri, Kansas City, School of Medicine
Licensed in
MO
In the registry since
2022
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Address checks out

625 S New Ballas Rd Ste R7040
Saint Louis, MO 63141-8240
Phone: (314) 251-6970
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 10012 Kennerly Rd Ste 101, Saint Louis, MO 63128-2197 — (314) 251-6970
  • 901 Patients First Dr Ste 2500, Washington, MO 63090-4700 — (314) 251-6970

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 2023037284 (MO)

Record details

NPI number1164179792
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA
Sole proprietorNo
NPI enumeratedMarch 3, 2022
Last updated in NPPESMarch 3, 2026
Certification dateMarch 3, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolUNIVERSITY OF MISSOURI, KANSAS CITY, SCHOOL OF MEDICINE
Graduated 2023 (3 years in practice)
Group practice Mercy Clinic Cardiovascular And Thoracic Surgery Llc — 23 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients15
Services billed 16 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $174 6 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Mercy Hospital St Louis Hospital · Saint Louis, MO · listed as Mercy Hospitals East Communities Mercy Hospital St Louis

Colleagues at Mercy Clinic Cardiovascular and Thoracic Surgery LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 23 clinicians in the practice; 12 are shown here.

Other providers in Saint Louis