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

Mrs. Abby Irene Kolthoff, ARNP

Individual provider Licensed Practical Nurse · NPI 1184056822

Mrs. Abby Irene Kolthoff, ARNP is a Nurse Practitioner in Waterloo, Iowa. Qualified in 2002, 24 years ago. Practices with Black Hawk-Grundy Mental Health Center Inc, a 21-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Iowa.

Years since qualifying
24
Licensed in
IA
In the registry since
2013
Specialties on file
2
What do these letters mean?
ARNP — Advanced Registered Nurse Practitioner
The title some states use for an advanced practice nurse.

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Practice location Address checks out

3251 W 9th St
Waterloo, IA 50702-5310
Phone: (319) 234-2893
Fax: (319) 234-0354
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence G171685 (IA)
Licensed Practical Nurse Taxonomy 164W00000X · Licence P49107 (IA)

Record details

NPI number1184056822
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorNo
NPI enumeratedAugust 5, 2013
Last updated in NPPESNovember 2, 2022
Certification dateApril 29, 2022

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Black Hawk-Grundy Mental Health Center Inc — 21 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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