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

Individual provider Adult Health Nurse Practitioner · NPI 1215030564

Marguerite Esther Callahan, APN is an Adult Health Nurse Practitioner in Nashville, Tennessee. Practices as a sole proprietor. Licensed in Tennessee.

Licensed in
TN
In the registry since
2006
What do these letters mean?
APN — Advanced Practice Nurse
The umbrella title some states use for nurse practitioners and other advanced practice nurses.

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Practice location Address checks out

1310 24th Avenue South Tennessee Valley Healthcare System
Nashville, TN 37212 Not confirmed with CMS for 19 years — call before visiting
Phone: (615) 340-2340
Fax: (615) 340-2341
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence 7163 (TN)

Record details

NPI number1215030564
Entity typeIndividual (Type 1)
GenderFemale
Credentials APN
Sole proprietorYes
NPI enumeratedSeptember 5, 2006
Last updated in NPPESJuly 8, 2007

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