Caitlin Nicole Christiansen, APRN

Primary specialty

Gerontology Nurse PractitionerTaxonomy code 363LG0600X

License

34878 Issued in TN

Practice address

3601 The Vanderbilt Clinic
Nashville, TN 37232-6108

Phone

(615) 322-3000

NPI assigned

Nov 17, 2021

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 3

Addresses

Other identifiers 1

Other names 1

• Caitlin Nicole Flagler Former name

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in TN

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

Vanderbilt University Medical CenterGroup PAC ID 5092023416, 3,510 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Vanderbilt University Medical Center Hospital, Nashville, TN, CCN 440039

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: cflagler383884@direct.vumc.org

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.

• Vanderbilt University Medical Center

  • Internal Medicine Physician
  • Nashville, TN
  • NPI 1104202761
  Medicare reassignment Care Compare group NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Vanderbilt University Medical Center

  • General Acute Care Hospital
  • Nashville, TN
  • NPI 1396882205
  Care Compare affiliation

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

{
    "created_epoch": "1637107200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788998400000",
    "number": "1811654502",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3841 GREEN HILLS VILLAGE DR STE 200",
            "city": "NASHVILLE",
            "state": "TN",
            "postal_code": "372152691",
            "fax_number": "615-322-5048"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3601 THE VANDERBILT CLINIC",
            "city": "NASHVILLE",
            "state": "TN",
            "postal_code": "372326108",
            "telephone_number": "615-322-3000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1211 Medical Center Dr",
            "address_purpose": "LOCATION",
            "city": "Nashville",
            "state": "TN",
            "postal_code": "372320004",
            "country_code": "US",
            "telephone_number": "615-343-1100",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHRISTIANSEN",
        "first_name": "CAITLIN",
        "middle_name": "NICOLE",
        "credential": "APRN",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2021-11-17",
        "last_updated": "2026-09-10",
        "certification_date": "2026-09-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "TN",
            "license": "34878",
            "primary": false
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "TN",
            "license": "228980",
            "primary": false
        },
        {
            "code": "363LG0600X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Gerontology",
            "state": "TN",
            "license": "34878",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "Q087993",
            "state": "TN"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "cflagler383884@direct.vumc.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "Health Information Service Provider",
            "address_1": "1211 Medical Center Dr",
            "city": "Nashville",
            "state": "TN",
            "country_code": "US",
            "postal_code": "372326108",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "CAITLIN",
            "last_name": "FLAGLER",
            "middle_name": "NICOLE",
            "credential": "APRN",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Karla Christian, MD
• Kimberly Yvette Christian, FNP-BC
• Megan Virginia Christian, MSN, APRN, AGACNP-BC
• Shannon Christian
• Alexandra Christiansen, OTR/L
• Carol E Christiansen
• Sarah Partee Christianson
• Donna Christie, RN
• Matthew C. Christie, MD
• Michael J. Christie, MD

• Gerontology Nurse Practitioner in Nashville, TN
• Providers in Nashville, TN by specialty
• Gerontology Nurse Practitioner in Tennessee

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 10, 2026; 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.