David Z. Ritvo, M.D.

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

G30097 Issued in CA

Practice address

1910 Olympic Blvd
Ste 230
Walnut Creek, CA 94596-5070

Phone

(925) 944-1002

Fax

(925) 939-4159

NPI assigned

Jun 26, 2005

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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.

Opted out of Medicare

Yes, effective Nov 14, 2012 through Nov 14, 2026

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1119744000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1205832094",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1910 OLYMPIC BLVD",
            "address_2": "STE 230",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945965070",
            "telephone_number": "925-944-1002",
            "fax_number": "925-939-4159"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1910 OLYMPIC BLVD",
            "address_2": "STE 230",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945965070",
            "telephone_number": "925-944-1002",
            "fax_number": "925-939-4159"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RITVO",
        "first_name": "DAVID",
        "middle_name": "Z.",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2005-06-26",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "CA",
            "license": "G30097",
            "primary": true
        },
        {
            "code": "2084P0804X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Child & Adolescent Psychiatry",
            "state": "CA",
            "license": "G30097",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Elizabeth Marie Risner
• Wendy L. Ritchey, PH.D.
• Anna Ritner, L.AC., FABORM
• Gina Nichole Ritorto, MA, PPS
• Kalden Ritschel-Aukatsang
• Lizbeth Rivas-Bachemin
• Marina Isabel Rivas
• Giselle Rivera Curiel
• Katherine Guadalupe Rivera Franco
• Gilleann Marie Rivera, APRN

• Psychiatry Physician in Walnut Creek, CA
• Providers in Walnut Creek, 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 11, 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; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.