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

Marilyn Harter, ARNP

Individual provider Nurse Practitioner · NPI 1124401922

Marilyn Harter, ARNP is a Nurse Practitioner in Marshalltown, Iowa. Qualified in 2015, 11 years ago. Practices with Broadlawns Medical Center, a 306-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
11
Licensed in
IA
In the registry since
2015
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 →

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Practice location Address checks out

412 E Church St
Marshalltown, IA 50158-2947
Phone: (641) 753-4021
Fax: (641) 753-4025
Show map & directions

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

Additional practice locations (1)

  • 2006 N 4th St Ste 200, Indianola, IA 50125-4500 — (515) 461-9784

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence A097804 (IA)

Record details

NPI number1124401922
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorNo
NPI enumeratedJune 30, 2015
Last updated in NPPESDecember 21, 2025
Certification dateDecember 21, 2025

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 Broadlawns Medical Center — 306 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients222
Services billed 548 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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 $91 3 payments · 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Knoxville Hospital & Clinics Hospital · Knoxville, IA · listed as Knoxville Hospital and Clinics
  • Mercyone Des Moines Medical Center Hospital · Des Moines, IA

Colleagues at Broadlawns Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 306 clinicians in the practice; 12 are shown here.

Other providers in Marshalltown