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

Mary I Horn, ARNP

Individual provider Nurse Practitioner · NPI 1104804822

Mary I Horn, ARNP is a Nurse Practitioner in Cedar Rapids, Iowa. Licensed in Iowa. Registered with an NPI since 2006.

Licensed in
IA
In the registry since
2006
What do these letters mean?
ARNP — Advanced Registered Nurse Practitioner
The title some states use for an advanced practice nurse.

See every abbreviation used in this directory →

Practice location Address checks out

855 A Ave NE Ste 300
Cedar Rapids, IA 52402-5057
Phone: (319) 368-9300
Fax: (319) 368-5690
Show map & directions

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

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 040829 (IA)

Record details

NPI number1104804822
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorNo
NPI enumeratedJanuary 3, 2006
Last updated in NPPESOctober 25, 2011

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