Michael R P Vivian, MD

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

G78890 Issued in CA

Practice address

3311 Old Conejo Rd
Newbury Park, CA 91320-2115

Phone

(805) 322-7619

Fax

(805) 388-1155

NPI assigned

Sep 14, 2006

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

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

Specialty

PsychiatryAlso: Addiction Medicine

Education

University of California, Geffen School of Medicine, 1992

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Not enrolled

HHS exclusion list flag

Flagged The directory lists this NPI on an HHS exclusion list. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1158192000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759190400000",
    "number": "1831294917",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3311 OLD CONEJO RD",
            "city": "NEWBURY PARK",
            "state": "CA",
            "postal_code": "913202115",
            "telephone_number": "805-322-7619",
            "fax_number": "805-388-1155"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3311 OLD CONEJO RD",
            "city": "NEWBURY PARK",
            "state": "CA",
            "postal_code": "913202115",
            "telephone_number": "805-322-7619",
            "fax_number": "805-388-1155"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "VIVIAN",
        "first_name": "MICHAEL",
        "middle_name": "R P",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-09-14",
        "last_updated": "2025-09-30",
        "certification_date": "2025-09-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "CA",
            "license": "G78890",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Alma Valdovinos
• Fernando David Valladares, DPT
• Velvet Hearts Professional Home Care Agency LLC
• Ventura Spine Institute, a Medical Corporation
• Venturacounty Behavioral Health Alcohol and Drug Programs
• Wade J Dahlberg Sr (West Coast Pharmaceutical Services)
• Julie Wagman
• Monica Waidmann, MD
• Grace Wang
• Shoubin Wang

• Psychiatry Physician in Newbury Park, CA
• Providers in Newbury Park, CA by specialty
• Psychiatry Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 30, 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.