Individual provider Active NPI

Siva Yoganathan, M.D.

  • Psychiatry Physician
  • Napa, CA
National Provider Identifier
1063465664
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatry PhysicianTaxonomy code 2084P0800X
License
A26466 Issued in CA
Practice address
2100 Napa Vallejo Hwy
Napa, CA 94558-6234
Phone
(707) 253-5000
Fax
(707) 253-5513
NPI assigned
May 18, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Psychiatry Physician 2084P0800X A26466 CA Primary

Addresses

Primary practice location

2100 Napa Vallejo Hwy
Napa, CA 94558-6234

Mailing address

1600 9TH St
Room 205 Mailstop 2-3
Sacramento, CA 95814-6414
Phone (916) 654-2431

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file
Eligible to order & refer
  • Part B services: No
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A26466CAMDPsychiatry Physician

Practice roles

OrganizationSpecialtyStatusNew patients
State of California - Department of Developmental Services Past Accepting new patients

Organizations & group practices 1

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.

NPI Registry JSON

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

{
    "created_epoch": "1147910400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1063465664",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1600 9TH ST",
            "address_2": "ROOM 205 MAILSTOP 2-3",
            "city": "SACRAMENTO",
            "state": "CA",
            "postal_code": "958146414",
            "telephone_number": "916-654-2431",
            "fax_number": "916-654-3186"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2100 NAPA VALLEJO HWY",
            "city": "NAPA",
            "state": "CA",
            "postal_code": "945586234",
            "telephone_number": "707-253-5000",
            "fax_number": "707-253-5513"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "YOGANATHAN",
        "first_name": "SIVA",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-05-18",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "CA",
            "license": "A26466",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Napa, CA

Sources for this page

Verify at the official NPI Registry.