Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Marilyn F.m. Johnston, MD

Individual provider Clinical Pathology/Laboratory Medicine Physician · NPI 1538141668

Marilyn F.m. Johnston, MD is a Clinical Pathology/Laboratory Medicine Physician in Saint Louis, Missouri. Licensed in Illinois and Missouri. Registered with an NPI since 2005.

Licensed in
IL, MO
In the registry since
2005
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

11133 Dunn Rd Dept OF Pathology
Saint Louis, MO 63136-6119
Phone: (314) 653-5630
Fax: (314) 653-4099
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Pathology/Laboratory Medicine Physician (primary) Taxonomy 207ZP0105X · Licence R7131 (MO)
Clinical Pathology/Laboratory Medicine Physician Taxonomy 207ZP0105X (IL)

Record details

NPI number1538141668
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 15, 2005
Last updated in NPPESApril 20, 2008

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