Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Cynthia Ann Guthmiller, ARNP/PMHNP

Individual provider Family Nurse Practitioner · NPI 1790755395

Cynthia Ann Guthmiller, ARNP/PMHNP is a Family Nurse Practitioner in Sioux City, Iowa. Licensed in Iowa and South Dakota. Registered with an NPI since 2006.

Licensed in
IA, SD
In the registry since
2006
Specialties on file
4

Practice location Address checks out

625 Court St
Sioux City, IA 51101-1919
Phone: (712) 252-3871
Fax: (712) 252-3157
Show map & directions

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

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence G159714 (IA)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence CP000559 (SD)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence A-092601 (IA)
Women's Health Nurse Practitioner Taxonomy 363LW0102X · Licence F-092601 (IA)

Record details

NPI number1790755395
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP/PMHNP
Sole proprietorNo
NPI enumeratedJanuary 25, 2006
Last updated in NPPESMay 31, 2022
Certification dateMay 31, 2022

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $17 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Other providers in Sioux City