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Active NPI 1124401922 Individual Practitioner Female Practitioner

Marilyn Harter , ARNP

Nurse Practitioner • Marshalltown, IA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Marilyn Harter, ARNP is a certified Nurse Practitioner practicing in Marshalltown, IA. With approximately 11 years of clinical experience since completing medical education in 2015, Marilyn Harter delivers high-quality medical care to the local community at 412 E CHURCH ST.

Marilyn Harter maintains professional affiliations with Mercy Clinics Inc, Broadlawns Medical Center, Mercyone Urgentcare and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, new patient outpatient office visit, detection test by immunoassay with direct visual observation for influenza virus. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

412 E Church St

Marshalltown, IA 501582947

Telephone 6417534021
Fax 6417534025
Associated Practice Facility / Clinic
🏢 Primary Health Care, Inc. Facility NPI 1982753273

Medicare Profile & Education

Medical School

Other

Graduation Year

2015

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Nurse Practitioner in Marshalltown, IA

Established Specialist (10-20 Yrs)
Practitioner Clinical Experience
11 Yrs +4.4 yrs vs City Avg
City Avg: 6.6 Yrs
State Avg: 11.8 Yrs
Regional Practice Density
15 Specialists

Practicing in Marshalltown, IA (1307 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
60.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Harter (11 Years) 11 Yrs
Marshalltown Specialty Average (6.6 Years) 6.6 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
85 74 $250.00 $99.78
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
72 72 $328.00 $130.81
99213 Established patient office or other outpatient visit, typically 15 minutes
52 45 $180.00 $71.32
87804 Detection test by immunoassay with direct visual observation for influenza virus
46 23 $38.00 $16.22
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
45 45 $229.00 $85.85
87811 Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19)
37 36 $83.00 $40.55
81003 Automated urinalysis test
24 22 $6.00 $2.20
93000 Routine ekg using at least 12 leads including interpretation and report
18 16 $44.00 $11.06

Medical Specialties & State Licenses

CMS Verified: 2025-12-21
Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

State License IA A097804

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Hospital & Practice Group Affiliations

Broadlawns Medical Center

1801 Hickman Rd, Des Moines, IA 503141548

Phone: 5152822200

Mercy Clinics Inc

6601 Sw 9th St, Des Moines, IA 503156138

Phone: 5154619786

Mercyone Urgentcare

6601 Sw 9th St, Des Moines, IA 503156138

Phone: 5154619786

Mercyone Urgentcare

2400 Lillian Way, Clinton, IA 527322001

Phone: 2252397190

Secondary Practice Locations

2006 N 4th St Ste 200

Indianola, IA 501254500

Phone: 5154619784

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

21 Associated Practitioners
NPI 1033472675

Licensed Master Social Worker

Karisa Goering , PA-C

Physician Assistant

NPI 1073941498

Physician Assistant (Certified)

Cindy Cruikshank , NP

Nurse Practitioner - Women's Health

NPI 1104974849

Nurse Practitioner

Christine Taylor , PA

Physician Assistant

NPI 1134277759

Physician Assistant

NPI 1245388743

Doctor of Medicine (M.D.)

Katherine Eaton , ARNP

Nurse Practitioner

NPI 1265504138

Advanced Registered Nurse Practitioner

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

8 Historical Events
📍
Updated Business Mailing Address December 21, 2025

Registered at PO BOX 674721, DALLAS, TX 752674721 (Tel: 5156432519)

📍
Updated Business Mailing Address August 12, 2021

Registered at PO BOX 1475, DES MOINES, IA 503051475 (Tel: 5159618448)

NPI Profile Active November 02, 2016

NPI status registered as active in NPPES database

📍
Updated Practice Location November 02, 2016

Registered at 412 E CHURCH ST, MARSHALLTOWN, IA 501582947 (Tel: 6417534021)

📍
Updated Business Mailing Address November 02, 2016

Registered at 1200 UNIVERSITY AVE, STE 200, DES MOINES, IA 503142355 (Tel: 5152481447)

👤
Provider Name / Credentials Updated November 02, 2016

Recorded as MARILYN HARTER, ARNP

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) November 02, 2016

Nurse Practitioner (License #A097804 in IA)

🟢
Initial NPI Registration & Enumeration June 30, 2015

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1124401922
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 30, 2015
Last Update: December 21, 2025
Sole Proprietor: No

Mailing Address

Po Box 674721

Dallas, TX 752674721

Phone: 5156432519

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.