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

John William Richardson, MD

Individual provider Cardiovascular Disease Physician · NPI 1235183872

John William Richardson, MD is a Cardiovascular Disease Physician in Dubuque, Iowa. Licensed in Iowa and Wisconsin. Registered with an NPI since 2006.

Licensed in
IA, WI
In the registry since
2006
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

1000 Langworthy St
Dubuque, IA 52001-7313
Phone: (563) 584-3425
Fax: (563) 584-3497
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 29589 (IA)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 35248 (WI)

Record details

NPI number1235183872
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 19, 2006
Last updated in NPPESJuly 20, 2009
Mailing address1500 Associates Dr, Dubuque, IA 52002-2201

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