NPPES file of Aug 9, 2026

Steven Mark Malarchick, FNP

Family Nurse Practitioner · Saint Louis, MO

Steven Mark Malarchick, FNP is a family nurse practitioner with a practice address in Saint Louis, Missouri, and NPI 1427724640, issued on Aug 18, 2021. Check the license (Missouri 2023043194, as entered in NPPES) with the Missouri 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1427724640
Name
Steven Mark Malarchick
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
2023043194 MO
Self-reported in NPPES; status is on the state search
Practice location
1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110
Phone
(314) 362-9123
Enumerated
Aug 18, 2021
Record last updated
Apr 17, 2025
Fax
(314) 362-0478
Medicaid ID
420138552 MO
Medicare enrollment
Enrolled (PECOS I20240405001305); accepts Medicare assignment
Medical or professional school
University Of Colorado School Of Medicine, Denver, 2021
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 1 Barnes Jewish Hospital Plz

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

  1. Fizza Abbas, MDInternal Medicine Physician1588079230
  2. Catey Abbott, DOInternal Medicine Physician1699355347
  3. Ramzi Abboud, MDMedical Oncology Physician1649684200
  4. Amy Abdalla, MDRadiation Oncology Physician1932959954
  5. Heba Abdelal, MDAnatomic Pathology & Clinical Pathology Physician1033633383
  6. Ali Abdelhay, MDHospitalist Physician1619540606

Verify Steven Mark Malarchick in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this profession
    Search for license 2023043194
    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
Find the Missouri license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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89% fewer Medicare Part D claims than the average family nurse practitioner in 2024

138 Medicare Part D claims for 108 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Steven Malarchick138
  2. Specialty average1,305

Most prescribed

  1. Amoxicillin-Clavulanate Potass16 claims
  2. Cephalexin14 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 69.4 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score57.3
  2. Costout of 100 · 30%49.0
  3. Promoting interoperabilityout of 100 · 25%81.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 3 group practices

  1. San Juan Regional Medical Center, Inc.Farmington, NM
  2. Washington UniversitySaint Louis, MO
  3. Washington University Community Specialists, LLCSaint Louis, MO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Steven Mark Malarchick among 5,226 family nurse practitioner records in Missouri

Steven Mark Malarchick, FNP is one of 5,226 family nurse practitioner records with a practice address in Missouri. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 72% of them.

  • NPI issued2021 · 72% of these records are older, 22% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2021 · median 2018 among the 3,339 with a school on file
  • Record last updated2025 · 44% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

714 family nurse practitioner records list a practice address in Saint Louis

They are 714 of the 27,605 NPPES records with a practice address in Saint Louis, and 5,226 family nurse practitioner records in Missouri.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Kimberly Beeman, FNPSaint Louis, MO 631101396761607
  2. Mary Campigotto, FNPSaint Louis, MO 631101982622411
  3. Heidi Craddock, FNPSaint Louis, MO 631101588680714
  4. Sandra Deeken, FNPSaint Louis, MO 631101912098682
  5. Michaela Dino, FNPSaint Louis, MO 631101760576045
  6. Christine Ellis, FNPSaint Louis, MO 631101710905138
  7. Linda Goldenberg, FNPSaint Louis, MO 631101538119904
  8. Asha Goodner, FNPSaint Louis, MO 631101801820097

Common questions

What is Steven Mark Malarchick, FNP's NPI number?

Steven Mark Malarchick, FNP's National Provider Identifier (NPI) is 1427724640, issued on Aug 18, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Steven Mark Malarchick, FNP located?

The NPPES record lists a practice address at 1 Barnes Jewish Hospital Plz, Saint Louis, MO, 63110. Phone: (314) 362-9123. Providers update this record themselves, so call before visiting.

How can I verify Steven Mark Malarchick, FNP's license?

NPPES lists Missouri license number 2023043194, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

How much does Steven Mark Malarchick, FNP prescribe under Medicare Part D?

In 2024, Steven Mark Malarchick, FNP had 138 Medicare Part D claims for 108 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Steven Mark Malarchick, FNP's MIPS final score?

The 2023 MIPS final score is 69.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.