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MARY CLAIRE LOPEZ ARNP
NPI 1962228999
Nurse Practitioner - Psychiatric/Mental Health in Webster City, IA

Active since November 25, 2024PECOS Enrolled
2350 HOSPITAL DR, WEBSTER CITY, IA 50595(515) 832-7800 Get Directions Write a Review

NPPES record last updated: September 18, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mary Claire Lopez Arnp NPPES

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

MARY CLAIRE LOPEZ ARNP (NPI 1962228999) is an individual psychiatric/mental health provider in Webster City, Iowa, licensed in Iowa (G181415) and active in the NPI registry since November 2024. She is enrolled in Medicare PECOS, is affiliated with Van Diest Medical Center, and is a graduate of University Of Iowa, Rj & L Carver College Of Medicine (2024).

NPPES Registry Identity

NPI1962228999
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMARY CLAIRE LOPEZCredential: ARNP
Location Address2350 HOSPITAL DRWebster City, IA 50595-6600
Mailing Address2350 Hospital DrWebster City, IA 50595-6600
Phone(515) 832-7800
Sole ProprietorNo
Medical School CMSUniversity Of Iowa, Rj & L Carver College Of MedicineGraduated 2024
Enumeration DateNovember 25, 2024
Last NPPES UpdateSeptember 18, 2025
NPPES CertifiedSeptember 18, 2025
✔ NPI 1962228999 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in IA · G181415
2350 HOSPITAL DR, Webster City, IA 50595
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health, Oscar Insurance Company, Wellmark Health Plan of Iowa, Inc..Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Claire Lopez Arnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6103337241
PECOS Enrollment IDI20250617000129
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.

Medicare Billing Reassignment

Medicare enrollment records show Mary Claire Lopez reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Hamilton County Public Hospital
Same address
Critical Access
2350 HOSPITAL DRIVE
Webster City, IA 50595
  • Reassigned Medicare billing, Iowa enrollment
  • Also billed through NPI 1033160809 (Iowa)
  • 70 clinicians in this Medicare group
NPI 1295702397 (515) 832-9400

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

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

Van Diest Medical Center

Critical Access Hospitals · Webster City, IA
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number161361
Location2350 Hospital DriveWebster City, IA 50595 · Hamilton County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50595 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 20

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

DR. MATTHEW ALAN ALLRED DO
Family Medicine
2350 HOSPITAL DR
WEBSTER CITY, IA 50595
Hamilton County (515) 832-9400
HAMILTON COUNTY PUBLIC HOSPITAL
Nurse Practitioner
2350 HOSPITAL DR
WEBSTER CITY, IA 50595
Hamilton County (515) 832-9400
MRS. EMMA LYNN SCHUTT RN
Family Medicine
2350 HOSPITAL DR
WEBSTER CITY, IA 50595
Hamilton County (515) 832-7800
JULIE TROUT
Nurse Practitioner (Psychiatric/Mental Health)
2350 HOSPITAL DR
WEBSTER CITY, IA 50595
Hamilton County (515) 832-7800
ELISE A G DUWE
Family Medicine
2350 HOSPITAL DR
WEBSTER CITY, IA 50595
Hamilton County (515) 832-7800
MR. CHARLES BRADLEY HIRST PAC
Physician Assistant
2350 HOSPITAL DR
WEBSTER CITY, IA 50595
Hamilton County (515) 832-9400
HAMILTON COUNTY PUBLIC HOSPITAL
Clinic/Center (Critical Access Hospital)
2350 HOSPITAL DR
WEBSTER CITY, IA 50595
Hamilton County (515) 832-9400
SARA MARIE ZORN OTR/L
Occupational Therapist
2350 HOSPITAL DR
WEBSTER CITY, IA 50595
Hamilton County (515) 832-7735

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 Mary Claire Lopez's NPI number?

The NPI number for Mary Claire Lopez is 1962228999. It was assigned to this individual provider in the NPPES registry on November 25, 2024.

Where is Mary Claire Lopez located?

Mary Claire Lopez practices at 2350 Hospital Dr, Webster City, IA 50595. The listed phone number is (515) 832-7800.

What is Mary Claire Lopez's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Mary Claire Lopez enrolled in Medicare?

Yes. Mary Claire Lopez is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mary Claire Lopez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Claire Lopez reassigns Medicare benefits to Hamilton County Public Hospital (Webster City, IA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary Claire Lopez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mary Claire Lopez accept?

Health plans from Oscar Health, Oscar Insurance Company and Wellmark Health Plan of Iowa, Inc. list Mary Claire Lopez 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 Mary Claire Lopez affiliated with any hospitals?

According to CMS data, Mary Claire Lopez is affiliated with Van Diest Medical Center.

When was this NPI record last updated?

The NPPES record for Mary Claire Lopez was last updated on September 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.