Individual provider Active NPI

Olivia Milazzo Bittles, PA- C

  • Physician Assistant
  • Nashville, TN
National Provider Identifier
1578860847
Registry record updated Dec 22, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
3991 Issued in TN
Practice address
3601 The Vanderbilt Clinic
Nashville, TN 37232-0001
Phone
(352) 359-7580
NPI assigned
Feb 22, 2011
Last updated
Dec 22, 2025By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Dec 22, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X 3991 TN Primary
Surgical Physician Assistant 363AS0400X 3991 TN

Addresses

Primary practice location

3601 The Vanderbilt Clinic
Nashville, TN 37232-0001

Mailing address

3841 Green Hills Village Dr Ste 200
Nashville, TN 37215-2691
Phone (615) 936-2000

Other identifiers 1

IdentifierTypeStateIssuer
Q056111MedicaidTN

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address omilazzo482258@direct.vumc.org Direct

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20200403001523 TN Practitioner - Physician Assistant 4385073840 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
University of Florida College of Medicine, 2010
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Vanderbilt University Medical CenterGroup PAC ID 5092023416, 3,510 clinicians
Select Physical Therapy Holdings IncGroup PAC ID 9537076401, shared by 76 NPIs, 1,992 clinicians

Practice addresses (Care Compare)

719 Thompson LN
Nashville, TN 37204-3609
Phone (615) 322-3000

980 Professional Park Dr
Suite D
Clarksville, TN 37040-5251
Phone (931) 221-9967

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
3991TNMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Vanderbilt University Medical Center CurrentSince Mar 17, 2020 Accepting new patients
Vanderbilt University Past Accepting new patients

Locations

Dept A T 40379
Atlanta, GA 31192

3841 Green Hills Village Dr
Ste 200
Nashville, TN 37215
Phone (615) 322-6842

719 Thompson Ln
Nashville, TN 37204
Phone (615) 322-6485

Interoperability endpoints

  • Direct secure messaging: omilazzo482258@direct.vumc.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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1298332800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766361600000",
    "number": "1578860847",
    "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",
            "telephone_number": "615-936-2000"
        },
        {
            "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": "372320001",
            "telephone_number": "352-359-7580"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BITTLES",
        "first_name": "OLIVIA",
        "middle_name": "MILAZZO",
        "credential": "PA- C",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2011-02-22",
        "last_updated": "2025-12-22",
        "certification_date": "2025-12-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "TN",
            "license": "3991",
            "primary": true
        },
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "TN",
            "license": "3991",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "Q056111",
            "state": "TN"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "omilazzo482258@direct.vumc.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "Health Information Service Provider",
            "address_1": "3601 The Vanderbilt Clinic",
            "city": "Nashville",
            "state": "TN",
            "country_code": "US",
            "postal_code": "372320001",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Nashville, TN

Sources for this page

Verify at the official NPI Registry.