Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

HILLIARY MAHLER ARNP
NPI 1275380115
Nurse Practitioner - Psychiatric/Mental Health in Perry, IA

Q: What is Hilliary Mahler's NPI number?

The NPI number for Hilliary Mahler is 1275380115. It was assigned to this individual provider in the NPPES registry on April 30, 2024.

Q: What is Hilliary Mahler's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Hilliary Mahler was last updated on July 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 54 days 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 April 30, 2024PECOS EnrolledAccepts Medicare Assignment

900 1ST AVE, PERRY, IA 50220(515) 834-4064 Get Directions Write a Review

NPPES record last updated: July 2, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Mar 26, 2026, Jul 1, 2024, Apr 30, 2024 (3 updates tracked since 2024).

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About Hilliary Mahler Arnp NPPES

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

HILLIARY MAHLER ARNP (NPI 1275380115) is an individual psychiatric/mental health provider in Perry, Iowa, licensed in Iowa (G180119) and active in the NPI registry since April 2024. She is enrolled in Medicare PECOS, is affiliated with Guthrie County Hospital, and is a graduate of Other (2024).

NPPES Registry Identity

NPI1275380115

Entity TypeIndividualFemale

Primary Taxonomy363LP0808X

Provider Legal NameHILLIARY MAHLERCredential: ARNP

Location Address900 1ST AVEPerry, IA 50220-1703

Mailing Address900 1st AvePerry, IA 50220-1703 · (515) 834-4064 · Fax (515) 859-2842

Phone(515) 834-4064

Sole ProprietorNo

Medical School CMSOtherGraduated 2024

Enumeration DateApril 30, 2024

Last NPPES UpdateJuly 2, 20263 updates tracked since enumeration

NPPES CertifiedJuly 2, 2026

✔ NPI 1275380115 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 · G180119

900 1ST AVE, Perry, IA 50220

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Hilliary Mahler Arnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8527504661

PECOS Enrollment IDI20240724003644

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 3

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.

72 services28 patients

Psychotherapy with evaluation and management visit, 30 minutes 90833

Psychotherapy with evaluation and management is a 30-minute session where a mental health professional talks with you about your concerns and feelings. They assess your mental health, provide support, and manage your treatment plan to help improve your well-being.

63 services25 patients

Psychotherapy with evaluation and management visit, 45 minutes 90836

Psychotherapy with evaluation and management is a 45-minute session where a healthcare provider discusses your mental and emotional health. They assess your current state, manage any issues, and help you develop coping strategies. This service aims to improve your overall well-being.

24 services19 patients

Hospital Affiliations CMS Care Compare

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

Guthrie County Hospital

Critical Access Hospitals · Guthrie Center, IA

OwnershipVoluntary non-profit - Other

CMS Certification Number161314

Location710 North 12th StreetGuthrie Center, IA 50115 · Guthrie County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50220 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

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

HOMETOWN MENTAL HEALTH, LLC

Nurse Practitioner (Psychiatric/Mental Health)

900 1ST AVE
PERRY, IA 50220

Dallas County (515) 834-4064

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 Hilliary Mahler's NPI number?

The NPI number for Hilliary Mahler is 1275380115. It was assigned to this individual provider in the NPPES registry on April 30, 2024.

Where is Hilliary Mahler located?

Hilliary Mahler practices at 900 1st Ave, Perry, IA 50220. The listed phone number is (515) 834-4064.

What is Hilliary Mahler's specialty?

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

Is Hilliary Mahler enrolled in Medicare?

Yes. Hilliary Mahler is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Hilliary Mahler accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Ambetter from NH Healthy Families and Ambetter from Sunflower Health Plan and 4 other insurers list Hilliary Mahler 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 Hilliary Mahler affiliated with any hospitals?

According to CMS data, Hilliary Mahler is affiliated with Guthrie County Hospital.

When was this NPI record last updated?

The NPPES record for Hilliary Mahler was last updated on July 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 54 days 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.