Dereck Curtis Wei, MD

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

A190956 Issued in CA

Practice address

2940 Inland Empire Blvd
Ontario, CA 91764-4898

Phone

(909) 458-1350

NPI assigned

Apr 7, 2022

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

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.

Medicare enrollment (NPD)

Not enrolled

State licenses

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

{
    "created_epoch": "1649289600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786579200000",
    "number": "1720720105",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "400 N PEPPER AVE",
            "city": "COLTON",
            "state": "CA",
            "postal_code": "923241801",
            "telephone_number": "909-580-1000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2940 INLAND EMPIRE BLVD",
            "city": "ONTARIO",
            "state": "CA",
            "postal_code": "917644898",
            "telephone_number": "909-458-1350"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "400 N Pepper Ave",
            "address_purpose": "LOCATION",
            "city": "Colton",
            "state": "CA",
            "postal_code": "923241801",
            "country_code": "US",
            "telephone_number": "909-580-1000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WEI",
        "first_name": "DERECK",
        "middle_name": "CURTIS",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-04-07",
        "last_updated": "2026-08-13",
        "certification_date": "2026-08-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "CA",
            "license": "A190956",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Megan Wayman
• Joseph Webb
• Flenoid Debritt Tristan Webster, PSY.D.
• Candice Victoria Wedding
• Yasmeen Wehbe
• Judy A Weidner
• Toni Leann Weir, REGISTERED NURSE
• Camille Weldon
• Wellness Promoters LLC
• Anthony Cornelius Wells

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 13, 2026; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.