Individual provider Active NPI

Catherine E Gronniger, APRN

  • Psychiatric/Mental Health Nurse Practitioner
  • Topeka, KS
National Provider Identifier
1245995281
Registry record updated Dec 1, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X
License
53-80577 Issued in KS
Practice address
3707 SW 6TH Ave
Topeka, KS 66606-2084
Phone
(785) 270-4600
NPI assigned
Nov 4, 2021
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 1, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Adult Health Nurse Practitioner 363LA2200X 144250 KS
Psychiatric/Mental Health Nurse Practitioner 363LP0808X 53-80577 KS Primary
Nurse Practitioner 363L00000X 80577 KS

Addresses

Primary practice location

3707 SW 6TH Ave
Topeka, KS 66606-2084

Mailing address

3707 SW 6TH Ave
Topeka, KS 66606-2084
Phone (785) 270-4600

Other practice location 1

1500 SW 10th Ave
Topeka, KS 66604-1301
Phone (785) 354-6000

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address cgronniger114133@stormontvaildirect.org Direct COTTON O'NEIL CLINIC REVOCABLE TRUST
Direct Messaging Address cgronniger114133@stormontvaildirect.org Direct STORMONT-VAIL HEALTHCARE INC

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in KS
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20211119001176 KS Practitioner - Nurse Practitioner 3577952118 Reassigns benefits to 1 organization

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
80577KSMDNurse Practitioner
144250KSMDAdult Health Nurse Practitioner
53-80577KSMDPsychiatric/Mental Health Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Cotton-O'Neil Clinic Revocable Trust CurrentSince Nov 18, 2021 Accepting new patients
Cotton-O'Neil Clinic Revocable Trust CurrentSince Nov 18, 2021 Accepting new patients

Locations

1500 SW 10th Ave
Topeka, KS 66604
Phone (785) 354-5242

901 SW Garfield Ave
Topeka, KS 66606

3707 SW 6th Ave
Topeka, KS 66606
Phone (785) 270-4630

Interoperability endpoints

  • Direct secure messaging: cgronniger114133@stormontvaildirect.org

Organizations & group practices 2

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

NPI Registry JSON

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

{
    "created_epoch": "1635984000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764547200000",
    "number": "1245995281",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3707 SW 6TH AVE",
            "city": "TOPEKA",
            "state": "KS",
            "postal_code": "666062084",
            "telephone_number": "785-270-4600"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3707 SW 6TH AVE",
            "city": "TOPEKA",
            "state": "KS",
            "postal_code": "666062084",
            "telephone_number": "785-270-4600"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1500 SW 10th Ave",
            "address_purpose": "LOCATION",
            "city": "Topeka",
            "state": "KS",
            "postal_code": "666041301",
            "country_code": "US",
            "telephone_number": "785-354-6000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GRONNIGER",
        "first_name": "CATHERINE",
        "middle_name": "E",
        "credential": "APRN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-11-04",
        "last_updated": "2025-12-01",
        "certification_date": "2025-12-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "KS",
            "license": "144250",
            "primary": false
        },
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "KS",
            "license": "53-80577",
            "primary": true
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "KS",
            "license": "80577",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "cgronniger114133@stormontvaildirect.org",
            "affiliation": "Y",
            "endpointDescription": "Svh Secure Messaging",
            "affiliationName": "COTTON O'NEIL CLINIC REVOCABLE TRUST",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CCDA",
            "address_1": "3707 SW 6th Ave",
            "city": "Topeka",
            "state": "KS",
            "country_code": "US",
            "postal_code": "666062084",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "cgronniger114133@stormontvaildirect.org",
            "affiliation": "Y",
            "endpointDescription": "SVH Secure Messaging",
            "affiliationName": "STORMONT-VAIL HEALTHCARE INC",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CCDS",
            "address_1": "3707 SW 6th Ave",
            "city": "Topeka",
            "state": "KS",
            "country_code": "US",
            "postal_code": "666062084",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Topeka, KS

Sources for this page

Verify at the official NPI Registry.