Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mackenzie Anne Smith Steck, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1619436441

Mackenzie Anne Smith Steck, MD is a Critical Care Medicine (Internal Medicine) Physician in Saint Louis, Missouri. Works from 2 locations. Licensed in Missouri.

Licensed in
MO
In the registry since
2019
Specialties on file
3
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

1225 S Grand Blvd
Saint Louis, MO 63104-1016
Phone: (314) 977-4680
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3660 Vista Ave, Saint Louis, MO 63110-2540 — (314) 977-6100

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 2022033891 (MO)
Internal Medicine Physician Taxonomy 207R00000X · Licence 2022033891 (MO)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 2022033891 (MO)

Record details

NPI number1619436441
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 19, 2019
Last updated in NPPESApril 28, 2026
Certification dateApril 28, 2026

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