MATTIE JOY TESTROET ARNP
NPI 1356723399
Nurse Practitioner in Waterloo, IA

Q: What is Mattie Testroet's NPI number?

The NPI number for Mattie Testroet is 1356723399. It was assigned to this individual provider in the NPPES registry on June 26, 2015. The provider is also known as Mattie Joy Thompson.

Q: What is Mattie Testroet's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Mattie Testroet was last updated on May 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 26, 2015PECOS Enrolled

3530 W 4TH ST, WATERLOO, IA 50701(319) 233-2701(319) 236-7993 Get Directions Write a Review

NPPES record last updated: May 13, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Mattie Joy Testroet Arnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MATTIE JOY TESTROET ARNP (NPI 1356723399) is an individual nurse practitioner in Waterloo, Iowa, licensed in Iowa (A122571) and active in the NPI registry since June 2015. She is enrolled in Medicare PECOS, is affiliated with Allen Hospital, and is a graduate of Other (2015).

NPPES Registry Identity

NPI1356723399

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameMATTIE JOY TESTROETCredential: ARNP

Location Address3530 W 4TH STWaterloo, IA 50701-4503

Mailing Address3530 W 4th StWaterloo, IA 50701-4503 · (319) 233-2701 · Fax (319) 236-7993

Phone(319) 233-2701

Fax(319) 236-7993

Sole ProprietorNo

Medical School CMSOtherGraduated 2015

Enumeration DateJune 26, 2015

Last NPPES UpdateMay 13, 2025

NPPES CertifiedMay 13, 2025

✔ NPI 1356723399 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in IA · A122571

Definition

(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.

3530 W 4TH ST, Waterloo, IA 50701

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Other Names 1

Former Name (1)Mattie Joy Thompson

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mattie Joy Testroet Arnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5991010340

PECOS Enrollment IDI20150814013321

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

493 services290 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

141 services128 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

51 services41 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Allen Hospital

Acute Care Hospitals · Waterloo, IA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number160110

Location1825 Logan AvenueWaterloo, IA 50703 · Black Hawk County

Emergency services Birthing friendly

Grundy County Memorial Hospital

Critical Access Hospitals · Grundy Center, IA

OwnershipVoluntary non-profit - Other

CMS Certification Number161303

Location201 East J AvenueGrundy Center, IA 50638 · Grundy County

Emergency services

Community Memorial Hospital Medical Center

Critical Access Hospitals · Sumner, IA

OwnershipVoluntary non-profit - Private

CMS Certification Number161320

Location909 West First StreetSumner, IA 50674 · Bremer County

Emergency services

Buchanan County Health Center

Critical Access Hospitals · Independence, IA

OwnershipGovernment - Local

CMS Certification Number161335

Location1600 First St EastIndependence, IA 50644 · Buchanan County

Emergency services

Waverly Health Center

Critical Access Hospitals · Waverly, IA

OwnershipGovernment - Local

CMS Certification Number161339

Location312 9th Street SWWaverly, IA 50677 · Bremer County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50701 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$81.84 typical visit price

range $52.96 – $161.40

Typical copayment $20.46 (range $13.24 – $40.35)

Most-billed visit code 99203

Established Patient

$94.05 typical visit price

range $16.91 – $131.98

Typical copayment $23.51 (range $4.22 – $32.99)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JULIE MARIE GLEASON ARNP

Nurse Practitioner

3530 W 4TH ST
WATERLOO, IA 50701

Black Hawk County (319) 233-2701

PAWINA SUBEDI MD

Internal Medicine (Medical Oncology)

3530 W 4TH ST
WATERLOO, IA 50701

Black Hawk County (319) 233-2701

ZOE ELIZABETH SCHULT NP

Nurse Practitioner (Family)

3530 W 4TH ST
WATERLOO, IA 50701

Black Hawk County (319) 240-3745

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mattie Testroet's NPI number?

The NPI number for Mattie Testroet is 1356723399. It was assigned to this individual provider in the NPPES registry on June 26, 2015. The provider is also known as Mattie Joy Thompson.

Where is Mattie Testroet located?

Mattie Testroet practices at 3530 W 4th St, Waterloo, IA 50701. The listed phone number is (319) 233-2701.

What is Mattie Testroet's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Mattie Testroet enrolled in Medicare?

Yes. Mattie Testroet is registered in the Medicare PECOS enrollment system.

What insurance does Mattie Testroet accept?

Health plans from Medica list Mattie Testroet as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mattie Testroet affiliated with any hospitals?

According to CMS data, Mattie Testroet is affiliated with Allen Hospital, Grundy County Memorial Hospital, Community Memorial Hospital Medical Center, Buchanan County Health Center and Waverly Health Center.

When was this NPI record last updated?

The NPPES record for Mattie Testroet was last updated on May 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.