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

Karen Ruth Callahan, RN

Individual provider Gerontology Registered Nurse · NPI 1104556430

Karen Ruth Callahan, RN is a Gerontology Registered Nurse in Romeo, Michigan. Licensed in Michigan. Registered with an NPI since 2022.

Licensed in
MI
In the registry since
2022
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

See every abbreviation used in this directory →

Practice location Address checks out

71150 Orchard Crossing Ln
Romeo, MI 48065-3644
Phone: (586) 336-0106
Show map & directions

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

Specialties & licences

Gerontology Registered Nurse (primary) Taxonomy 163WG0600X · Licence 47043444355 (MI)

Record details

NPI number1104556430
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN
Sole proprietorNo
NPI enumeratedJune 10, 2022
Last updated in NPPESJune 10, 2022
Certification dateJune 10, 2022