Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Evan Ward Roller, MD

Individual provider Anesthesiology Physician · NPI 1124339494

Dr. Evan Ward Roller, MD is registered under Critical Care (Intensivists) in Saint Louis, Missouri. Graduated from University of Cincinnati College of Medicine in 2010, 16 years ago. Practices with Washington University, a 2,986-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
16
Trained at
University of Cincinnati College of Medicine
Licensed in
MO
In the registry since
2010
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1 Barnes Jewish Hospital Plz Dept Anesthesiology
Saint Louis, MO 63110-1003
Phone: (800) 862-9980
Fax: (314) 362-1185
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Anesthesiology) Physician (primary) Taxonomy 207LC0200X · Licence 2012020847 (MO)
Anesthesiology Physician Taxonomy 207L00000X · Licence 2012020847 (MO)

Record details

NPI number1124339494
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 1, 2010
Last updated in NPPESApril 17, 2025
Certification dateDecember 7, 2023

Medicare enrollment

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

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Also practisesANESTHESIOLOGY
Medical schoolUNIVERSITY OF CINCINNATI COLLEGE OF MEDICINE
Graduated 2010 (16 years in practice)
Group practice Washington University — 2986 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients208
Services billed 280 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Washington University

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2986 clinicians in the practice; 12 are shown here.

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