Individual provider Active NPI

Zachary Bonzell, MD

  • Psychiatry Physician
  • San Francisco, CA
National Provider Identifier
1669111720
Registry record updated Nov 3, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatry PhysicianTaxonomy code 2084P0800X
License
A201283 Issued in CA
Practice address
675 18TH St
San Francisco, CA 94143-4200
Phone
(510) 333-1390
NPI assigned
May 27, 2022
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 3, 2025

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 A201283 CA Primary

Addresses

Primary practice location

675 18TH St
San Francisco, CA 94143-4200

Mailing address

5649 Castle Dr
Oakland, CA 94611-2727
Phone (510) 333-1390

Other practice location 1

1801 Vicente St
San Francisco, CA 94116-2923
Phone (415) 681-3211

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
I20260501001753 CA Practitioner - Psychiatry 3870061492 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Psychiatry
Education
University of Southern California Keck School of Medicine, 2022
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

7677 Oakport St
Suite 1200
Oakland, CA 94621-1946

PO Box
Pasadena, CA 91189

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A201283CAMDPsychiatry Physician

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 and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1653609600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762128000000",
    "number": "1669111720",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5649 CASTLE DR",
            "city": "OAKLAND",
            "state": "CA",
            "postal_code": "946112727",
            "telephone_number": "510-333-1390"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "675 18TH ST",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941434200",
            "telephone_number": "510-333-1390"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1801 Vicente St",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "941162923",
            "country_code": "US",
            "telephone_number": "415-681-3211",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BONZELL",
        "first_name": "ZACHARY",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-05-27",
        "last_updated": "2025-11-03",
        "certification_date": "2025-11-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "CA",
            "license": "A201283",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.