Individual provider Active NPI

Olivia Nguyen

  • Addiction Medicine (Family Medicine) Physician
  • Ventura, CA
National Provider Identifier
1902478779
Registry record updated Jun 23, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Addiction Medicine (Family Medicine) PhysicianTaxonomy code 207QA0401X
License
A196357 Issued in CA
Practice address
300 Hillmont Ave
Ventura, CA 93003-1651
Phone
(805) 652-6000
NPI assigned
Jul 12, 2021
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jun 23, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Addiction Medicine (Family Medicine) Physician 207QA0401X A196357 CA Primary

Addresses

Primary practice location

300 Hillmont Ave
Ventura, CA 93003-1651

Mailing address

300 Hillmont Ave BLDG 340
Ventura, CA 93003-1651
Phone (805) 652-6228

Other practice location 1

300 Hillmont Ave Bldg 340
Ventura, CA 93003-1651
Phone (805) 652-6228

Other practice location 2

2150 N Victoria Ave
Oxnard, CA 93036-7791
Phone (805) 382-6296

Other practice location 3

300 Hillmont Ave Ste 101
Ventura, CA 93003-1651
Phone (805) 652-6100

Other practice location 4

300 Hillmont Ave Ste 201
Ventura, CA 93003-1651
Phone (805) 652-6100

Other practice location 5

3147 Loma Vista Rd
Ventura, CA 93003-2917
Phone (805) 652-6694

Other practice location 6

200 Hillmont Ave
Ventura, CA 93003-1647
Phone (805) 652-6729

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address olivia.nguyen@ventura.cernerdirect.com Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250204001484 CA Practitioner - Family Practice 4385174549 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
University of Texas Southwestern Medical School at Dallas, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
County of VenturaGroup PAC ID 7911810171, 340 clinicians

Practice addresses (Care Compare)

300 Hillmont Ave
Ventura, CA 93003-1651

Hospital & facility affiliations

  • Ventura County Medical Center Hospital, Ventura, CA, CCN 050159

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
A196357CAMDAddiction Medicine (Family Medicine) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
County of Ventura CurrentSince Nov 29, 2024 Accepting new patients
County of Ventura Current Accepting new patients
County of Ventura CurrentSince Nov 29, 2024 Accepting new patients
Healthright 360 PastSince Sep 1, 2024 Accepting new patients
Renal Consultants of Ventura County, Inc Past Accepting new patients

Locations

2220 E Gonzales Rd
Ste 120AB
Oxnard, CA 93036
Phone (805) 981-5150

2240 E Gonzales Rd
Ste 110
Oxnard, CA 93036
Phone (805) 961-5161

300 Hillmont Ave
Ste 101
Ventura, CA 93003
Phone (805) 652-6100

300 Hillmont Ave
Ventura, CA 93003
Phone (805) 652-6000

300 Hillmont Ave
Ste 201
Ventura, CA 93003
Phone (805) 652-6100

133 W Santa Clara St
Ventura, CA 93001
Phone (805) 641-5600

300 Hillmont Ave
Ste 401
Ventura, CA 93003
Phone (805) 648-9830

800 S Victoria Ave
#L4640
Ventura, CA 93009

200 Hillmont Ave
Ventura, CA 93003
Phone (805) 652-5755

300 Hillmont Ave
Bldg 340
Ventura, CA 93003
Phone (805) 652-6100

3147 Loma Vista Rd
Ventura, CA 93003
Phone (805) 652-5754

Interoperability endpoints

  • FHIR API: https://fhir4.healow.com/fhir/r4/FBCJAD

Organizations & group practices 5

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.

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": "1626048000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750636800000",
    "number": "1902478779",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 HILLMONT AVE BLDG 340",
            "city": "VENTURA",
            "state": "CA",
            "postal_code": "930031651",
            "telephone_number": "805-652-6228"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 HILLMONT AVE",
            "city": "VENTURA",
            "state": "CA",
            "postal_code": "930031651",
            "telephone_number": "805-652-6000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "300 Hillmont Ave Bldg 340",
            "address_purpose": "LOCATION",
            "city": "Ventura",
            "state": "CA",
            "postal_code": "930031651",
            "country_code": "US",
            "telephone_number": "805-652-6228",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2150 N Victoria Ave",
            "address_purpose": "LOCATION",
            "city": "Oxnard",
            "state": "CA",
            "postal_code": "930367791",
            "country_code": "US",
            "telephone_number": "805-382-6296",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "300 Hillmont Ave Ste 101",
            "address_purpose": "LOCATION",
            "city": "Ventura",
            "state": "CA",
            "postal_code": "930031651",
            "country_code": "US",
            "telephone_number": "805-652-6100",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "300 Hillmont Ave Ste 201",
            "address_purpose": "LOCATION",
            "city": "Ventura",
            "state": "CA",
            "postal_code": "930031651",
            "country_code": "US",
            "telephone_number": "805-652-6100",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3147 Loma Vista Rd",
            "address_purpose": "LOCATION",
            "city": "Ventura",
            "state": "CA",
            "postal_code": "930032917",
            "country_code": "US",
            "telephone_number": "805-652-6694",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "200 Hillmont Ave",
            "address_purpose": "LOCATION",
            "city": "Ventura",
            "state": "CA",
            "postal_code": "930031647",
            "country_code": "US",
            "telephone_number": "805-652-6729",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NGUYEN",
        "first_name": "OLIVIA",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2021-07-12",
        "last_updated": "2025-06-23",
        "certification_date": "2025-06-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207QA0401X",
            "taxonomy_group": "",
            "desc": "Family Medicine, Addiction Medicine",
            "state": "CA",
            "license": "A196357",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "olivia.nguyen@ventura.cernerdirect.com",
            "affiliation": "N",
            "endpointDescription": "Cerner Direct Secure Email",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "Direct Information",
            "address_1": "300 Hillmont Ave",
            "city": "Ventura",
            "state": "CA",
            "country_code": "US",
            "postal_code": "930031651",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Ventura, CA

Sources for this page

Verify at the official NPI Registry.