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

Tonya Johannes, ARNP

Individual provider Family Nurse Practitioner · NPI 1205292448

Tonya Johannes, ARNP is a Nurse Practitioner in Oskaloosa, Iowa. Qualified in 2015, 11 years ago. Practices with Mahaska County Hospital, a 124-clinician group and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
11
Licensed in
IA
In the registry since
2016
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

1229 C Ave E
Oskaloosa, IA 52577-4246
Phone: (641) 672-3360
Show map & directions

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

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence A122183 (IA)

Record details

NPI number1205292448
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorYes
NPI enumeratedJanuary 4, 2016
Last updated in NPPESJanuary 4, 2016

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Mahaska County Hospital — 124 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Oskaloosa