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

Mr. Steven Mark Malarchick, FNP

Individual provider Family Nurse Practitioner · NPI 1427724640

Mr. Steven Mark Malarchick, FNP is a Nurse Practitioner in Saint Louis, Missouri. Graduated from University of Colorado School of Medicine, Denver in 2021, 5 years ago. Practices with Washington University Community Specialists LLC, a 95-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
5
Trained at
University of Colorado School of Medicine, Denver
Licensed in
MO
In the registry since
2021
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

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Practice location Address checks out

1 Barnes Jewish Hospital Plz Dept Emergency Med
Saint Louis, MO 63110-1003
Phone: (314) 362-9123
Fax: (314) 362-0478
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 2023043194 (MO)

Record details

NPI number1427724640
Entity typeIndividual (Type 1)
GenderMale
Credentials FNP
Sole proprietorNo
NPI enumeratedAugust 18, 2021
Last updated in NPPESApril 17, 2025
Certification dateMay 3, 2024

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolUNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER
Graduated 2021 (5 years in practice)
Group practice Washington University Community Specialists Llc — 95 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 patients151
Services billed 221 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 Community Specialists LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 95 clinicians in the practice; 12 are shown here.

Other providers in Saint Louis