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

Dr. Mark W Johnson, MD

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1558347765

Dr. Mark W Johnson, MD is an Anatomic Pathology & Clinical Pathology Physician in Sioux Falls, South Dakota. Licensed in South Dakota. Registered with an NPI since 2005.

Licensed in
SD
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

1305 W 18th St
Sioux Falls, SD 57105-0401
Phone: (605) 333-1720
Fax: (605) 333-1966
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Pathology/Laboratory Medicine Physician (primary) Taxonomy 207ZP0105X · Licence 3451 (SD)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence 3451 (SD)

Record details

NPI number1558347765
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 20, 2005
Last updated in NPPESJanuary 26, 2022
Certification dateJanuary 26, 2022

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