Katrina Lynn Grosswiler, APRN

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

APRN11030046 Issued in FL

Practice address

4565 US Highway 17 Ste 200
Fleming Island, FL 32003-4823

Phone

(904) 634-0640

Fax

(904) 634-0203

NPI assigned

Dec 6, 2023

Last updated

Jul 28, 2025By 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

Other identifiers 1

Other names 1

• Katrina Lynn Jones Former name

Medicare fee-for-service enrollment

Enrolled in FL

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

Specialty

Nurse Practitioner

Education

Other, 2023

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Southeast Orthopedic Specialists LLCGroup PAC ID 1456246974, 144 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: katrina.grosswiler.1@22724.direct.athenahealth.com

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.

• Southeast Orthopedic Specialists, LLC

  • Orthopaedic Surgery Physician
  • Jacksonville, FL
  • NPI 1629025820
  Medicare reassignment Care Compare group NPD
• Southeast Orthopedic Specialists, LLC

  • Durable Medical Equipment & Medical Supplies
  • Saint Johns, FL
  • NPI 1538952379
  NPD

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

{
    "created_epoch": "1701820800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753660800000",
    "number": "1861269193",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "609 CARRACK CT",
            "city": "SAINT MARYS",
            "state": "GA",
            "postal_code": "315582621",
            "telephone_number": "904-557-5114"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4565 US HIGHWAY 17 STE 200",
            "city": "FLEMING ISLAND",
            "state": "FL",
            "postal_code": "320034823",
            "telephone_number": "904-634-0640",
            "fax_number": "904-634-0203"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2300 Park Ave Ste 206",
            "address_purpose": "LOCATION",
            "city": "Orange Park",
            "state": "FL",
            "postal_code": "320735573",
            "country_code": "US",
            "telephone_number": "904-634-0640",
            "fax_number": "904-634-0203",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2 Shircliff Way Ste 605",
            "address_purpose": "LOCATION",
            "city": "Jacksonville",
            "state": "FL",
            "postal_code": "322044762",
            "country_code": "US",
            "telephone_number": "904-634-0640",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1690 US Highway 1 S Ste F",
            "address_purpose": "LOCATION",
            "city": "St Augustine",
            "state": "FL",
            "postal_code": "320846024",
            "country_code": "US",
            "telephone_number": "904-634-0640",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4268 Oldfield Crossing Dr Ste 201",
            "address_purpose": "LOCATION",
            "city": "Jacksonville",
            "state": "FL",
            "postal_code": "322238800",
            "country_code": "US",
            "telephone_number": "904-634-0640",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3055 County Road 210 W Ste 110",
            "address_purpose": "LOCATION",
            "city": "St Johns",
            "state": "FL",
            "postal_code": "322597001",
            "country_code": "US",
            "telephone_number": "904-634-0640",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "216 Southpark Cir E Ste 216",
            "address_purpose": "LOCATION",
            "city": "St Augustine",
            "state": "FL",
            "postal_code": "320865135",
            "country_code": "US",
            "telephone_number": "904-634-0640",
            "fax_number": "904-634-0203",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2627 Riverside Ave Ste 300",
            "address_purpose": "LOCATION",
            "city": "Jacksonville",
            "state": "FL",
            "postal_code": "322044717",
            "country_code": "US",
            "telephone_number": "904-634-0640",
            "fax_number": "904-634-0203",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "232 Ponte Vedra Park Dr",
            "address_purpose": "LOCATION",
            "city": "Ponte Vedra Beach",
            "state": "FL",
            "postal_code": "320826600",
            "country_code": "US",
            "telephone_number": "904-634-0640",
            "fax_number": "904-634-0203",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "15255 Max Legget Pkwy Ste 5300",
            "address_purpose": "LOCATION",
            "city": "Jacksonville",
            "state": "FL",
            "postal_code": "322187274",
            "country_code": "US",
            "telephone_number": "904-634-0640",
            "fax_number": "904-634-0640",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "10475 Centurion Pkwy N Ste 220",
            "address_purpose": "LOCATION",
            "city": "Jacksonville",
            "state": "FL",
            "postal_code": "322565004",
            "country_code": "US",
            "telephone_number": "904-634-0640",
            "fax_number": "904-634-0203",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GROSSWILER",
        "first_name": "KATRINA",
        "middle_name": "LYNN",
        "credential": "APRN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2023-12-06",
        "last_updated": "2025-07-28",
        "certification_date": "2025-07-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "FL",
            "license": "APRN11030046",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "121742800",
            "state": "FL"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "KATRINA",
            "last_name": "JONES",
            "middle_name": "LYNN",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Makayla Green
• Roderic M Grey, MA
• Sydney Griffith, PA-C
• Rhonda Grimes, LMHC, NCC
• Dennis Gross
• H2 Rehabilitation Services of Florida LLC (H2 Health)
• H2 Rehabilitation Services of Florida, LLC (H2 Health)
• Vanessa A Hajzus, PA-C
• Amanda P Hall, APRN
• Maureen Ann Hamilton, RNFA

• Nurse Practitioner in Fleming Island, FL
• Providers in Fleming Island, FL by specialty
• Nurse Practitioner in Florida

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 28, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.