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GILLIS PSYCHIATRY LLC
NPI 1578428116
Nurse Practitioner - Psychiatric/Mental Health in South Bend, IN

Active since December 17, 2025
17434 STATE ROAD 23, SOUTH BEND, IN 46635(574) 272-6406(464) 333-9684 Get Directions Write a Review

NPPES record last updated: December 30, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 30, 2025, Dec 17, 2025 (2 updates tracked since 2025).

About Gillis Psychiatry Llc NPPES

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

GILLIS PSYCHIATRY LLC (NPI 1578428116), doing business as Gillis Mental Health & Wellness, is a healthcare organization registered as a psychiatric/mental health in South Bend, Indiana and active in the NPI registry since December 2025. The organization lists Lucinda Kil Gillis, Managing Member, as its authorized official.

NPPES Registry Identity

NPI1578428116
Entity TypeOrganization
Primary Taxonomy363LP0808X
Legal Business NameGILLIS PSYCHIATRY LLC
Location Address17434 STATE ROAD 23South Bend, IN 46635-1743
Mailing Address17434 State Road 23South Bend, IN 46635-1743 · (574) 272-6406 · Fax (464) 333-9684
Phone(574) 272-6406
Fax(464) 333-9684
Organization SubpartNo
Authorized OfficialLucinda Kil GillisManaging Member · (574) 329-0241
Enumeration DateDecember 17, 2025
Last NPPES UpdateDecember 30, 20252 updates tracked since enumeration
NPPES CertifiedDecember 30, 2025
✔ NPI 1578428116 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
17434 STATE ROAD 23, South Bend, IN 46635
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Other Names 1

Doing Business AsGillis Mental Health & Wellness

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gillis Psychiatry Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Gillis Psychiatry LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Lucinda Gillis, N.P.
Nurse Practitioner
NPI 1639908601
17434 STATE ROAD 23
South Bend, IN 46635
(574) 329-0241
✔ PECOS✔ Accepts MedicareSame address

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

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 Gillis Psychiatry LLC's NPI number?

The NPI number for Gillis Psychiatry LLC is 1578428116. It was assigned to this organization in the NPPES registry on December 17, 2025. The provider is doing business as Gillis Mental Health & Wellness.

Where is Gillis Psychiatry LLC located?

Gillis Psychiatry LLC is located at 17434 State Road 23, South Bend, IN 46635. The listed phone number is (574) 272-6406.

What is Gillis Psychiatry LLC's specialty?

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

Is Gillis Psychiatry LLC enrolled in Medicare?

Yes. Gillis Psychiatry LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Gillis Psychiatry LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Nurse Practitioner) reassigns their Medicare billing to Gillis Psychiatry LLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Gillis Psychiatry LLC accept?

Health plans from CareSource list Gillis Psychiatry LLC 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.

When was this NPI record last updated?

The NPPES record for Gillis Psychiatry LLC was last updated on December 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.