Zachary Bosshardt, MD

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

202623 Issued in CA

Practice address

2500 Alhambra Ave
Martinez, CA 94553-3156

Phone

(925) 370-5000

NPI assigned

Apr 6, 2020

Sex

Male

Sole proprietor

No

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

Psychiatry

Education

Emory University School of Medicine, 2024

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

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.

• Contra Costa County

  • Adult Mental Health Clinic/Center
  • San Pablo, CA
  • NPI 1376620336
  Medicare reassignment
• Traditions Psychiatry Group, P.C

  • Psychiatry Physician
  • Santa Rosa, CA
  • NPI 1083802979
  NPD (past)

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

{
    "created_epoch": "1586131200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753833600000",
    "number": "1659900264",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "900 LARKSPUR LANDING CIR STE 285",
            "city": "LARKSPUR",
            "state": "CA",
            "postal_code": "949391765",
            "telephone_number": "707-258-8757"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2500 ALHAMBRA AVE",
            "city": "MARTINEZ",
            "state": "CA",
            "postal_code": "945533156",
            "telephone_number": "925-370-5000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1364 Clifton Rd NE",
            "address_purpose": "LOCATION",
            "city": "Atlanta",
            "state": "GA",
            "postal_code": "303221059",
            "country_code": "US",
            "telephone_number": "404-712-2000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BOSSHARDT",
        "first_name": "ZACHARY",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-04-06",
        "last_updated": "2025-07-30",
        "certification_date": "2025-07-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "CA",
            "license": "202623",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Brea Bondi-Boyd, MD
• Janette L Booher Fulton, D.C.
• Lauren Diana Borden
• Lou Anthony Bordisso
• Jerry A Boriskin, PH.D.
• Jamie Boudreau, M.D.
• Elizabeth Anne Bourell, RN,NP
• Gerald W. Bourne, MD
• Parveen Nahel Bourne, RN
• Joseph E. Bourque, MD

• Psychiatry Physician in Martinez, CA
• Providers in Martinez, CA by specialty
• Psychiatry Physician in California

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