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

Dr. Samuel Lewis Johnston, MD

Individual provider Internal Medicine Physician · NPI 1184832271

Dr. Samuel Lewis Johnston, MD is an Internal Medicine Physician in Iowa City, Iowa. Licensed in Iowa, Illinois and Oregon. Registered with an NPI since 2007.

Licensed in
IA, IL, OR
In the registry since
2007
Specialties on file
8
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

200 Hawkins Dr E315GH
Iowa City, IA 52242-1009
Phone: (319) 356-3689
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Cardiac Electrophysiology Physician (primary) Taxonomy 207RC0001X · Licence MD-42224 (IA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036-114065 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD153947 (OR)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 036-114065 (IL)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence MD153947 (OR)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence MD-4224 (IA)
Clinical Cardiac Electrophysiology Physician Taxonomy 207RC0001X · Licence 036114065 (IL)
Clinical Cardiac Electrophysiology Physician Taxonomy 207RC0001X · Licence MD153947 (OR)

Record details

NPI number1184832271
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 20, 2007
Last updated in NPPESDecember 12, 2016

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