Individual provider Active NPI

Vivien Bazarko, MD

  • Pediatrics Physician
  • San Francisco, CA
National Provider Identifier
1295485381
Registry record updated Oct 13, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatrics PhysicianTaxonomy code 208000000X
License
A190971 Issued in CA
Practice address
550 16TH St FL 4
San Francisco, CA 94143-2549
Phone
(415) 476-5001
NPI assigned
Mar 24, 2022
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 13, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X A190971 CA Primary

Addresses

Primary practice location

550 16TH St FL 4
San Francisco, CA 94143-2549

Mailing address

550 16TH St FL 4
San Francisco, CA 94143-2549

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
I20250909001537 CA Practitioner - Pediatric Medicine 6709232911 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Pediatric Medicine
Education
Geisel School of Medicine at Dartmouth, 2022
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

2001 The Embarcadero
San Francisco, CA 94143-5200

550 16TH St
FL 4
San Francisco, CA 94143-2549

550 16TH St 4TH Floor
Box 0110
San Francisco, CA 94158-2545

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A190971CAMDPediatrics Physician

Practice roles

OrganizationSpecialtyStatusNew patients
University of California San Francisco Pediatrics CurrentSince Jul 3, 2025 Accepting new patients
UCSF Pediatrics Associates Pediatrics CurrentSince Jul 3, 2025 Accepting new patients
UCSF Medical Group Business Services CurrentSince Jul 3, 2025 Accepting new patients
University of California San Francisco CurrentSince Jul 3, 2025 Accepting new patients
UCSF Medical Group Business Services CurrentSince Jul 3, 2025 Accepting new patients
University of California San Francisco Medical Center Past Accepting new patients

Locations

400 Parnassus Ave
#A632
San Francisco, CA 94143
Phone (415) 473-1000

550 16th St
Fl 4
San Francisco, CA 94143
Phone (415) 476-5001

1975 4th St
San Francisco, CA 94143
Phone (415) 353-3000

2330 Post St
San Francisco, CA 94115
Phone (415) 502-4444

505 Parnassus Ave
San Francisco, CA 94143
Phone (415) 476-9058

Interoperability endpoints

  • Direct secure messaging: vbazarko234062@direct-ucsfmedicalcenter.org

Organizations & group practices 6

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": "1648080000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760313600000",
    "number": "1295485381",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "550 16TH ST FL 4",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941432549"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "550 16TH ST FL 4",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941432549",
            "telephone_number": "415-476-5001"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BAZARKO",
        "first_name": "VIVIEN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-03-24",
        "last_updated": "2025-10-13",
        "certification_date": "2025-10-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "CA",
            "license": "A190971",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.