Margaret Anne Gillis, RN

Primary specialty

Registered NurseTaxonomy code 163W00000X

License

28284014C Issued in IN

Practice address

17434 State Road 23
South Bend, IN 46635-1743

Phone

(574) 485-0087

NPI assigned

Feb 24, 2026

Last updated

Feb 24, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Registered Nurse

State licenses

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Gillis Psychiatry LLC

  dba Gillis Mental Health & Wellness

  • Psychiatric/Mental Health Nurse Practitioner
  • South Bend, IN
  • NPI 1578428116
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1771891200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771891200000",
    "number": "1598619876",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "51736 WEXFORD DR",
            "city": "GRANGER",
            "state": "IN",
            "postal_code": "465308246"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "17434 STATE ROAD 23",
            "city": "SOUTH BEND",
            "state": "IN",
            "postal_code": "466351743",
            "telephone_number": "574-485-0087"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GILLIS",
        "first_name": "MARGARET",
        "middle_name": "ANNE",
        "credential": "RN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-02-24",
        "last_updated": "2026-02-24",
        "certification_date": "2026-02-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "IN",
            "license": "28284014C",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Oliver D Gilliam, M.D.
• Gillis Psychiatry LLC (Gillis Mental Health & Wellness)
• Angela Marie Gillis, M.S. CCC-SLP
• Lori Gillis, RN
• Lucinda Lou Kil Gillis, N.P.
• Michael Gillock, MS
• Courtney Gilson
• Donald W. Gindelberger, DO
• Christina J Gingerich, LMHC
• Kyleigh Girardi

• Registered Nurse in South Bend, IN
• Providers in South Bend, IN by specialty
• Registered Nurse in Indiana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 24, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.