Collin Zilun Yu, PHARM.D.

Primary specialty

PharmacistTaxonomy code 183500000X

License

76021 Issued in CA

Practice address

Kaiser Permanente National Pharmacy Informatics
12254 Bellflower Boulevard, 2ND Floor
Downey, CA 90242-2804

Phone

(626) 823-1599

Fax

(626) 823-1599

NPI assigned

Mar 6, 2017

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Pharmacy

State licenses

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

{
    "created_epoch": "1488758400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770422400000",
    "number": "1932649258",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "KAISER PERMANENTE NATIONAL PHARMACY INFORMATICS",
            "address_2": "12254 BELLFLOWER BOULEVARD, 2ND FLOOR",
            "city": "DOWNEY",
            "state": "CA",
            "postal_code": "902422804",
            "telephone_number": "626-823-1599",
            "fax_number": "626-823-1599"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "KAISER PERMANENTE NATIONAL PHARMACY INFORMATICS",
            "address_2": "12254 BELLFLOWER BOULEVARD, 2ND FLOOR",
            "city": "DOWNEY",
            "state": "CA",
            "postal_code": "902422804",
            "telephone_number": "626-823-1599",
            "fax_number": "626-823-1599"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "YU",
        "first_name": "COLLIN",
        "middle_name": "ZILUN",
        "name_prefix": "Dr.",
        "credential": "PHARM.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2017-03-06",
        "last_updated": "2026-02-07",
        "certification_date": "2026-02-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "183500000X",
            "taxonomy_group": "",
            "desc": "Pharmacist",
            "state": "CA",
            "license": "76021",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "PHARMACIST",
            "identifier": "76021",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Timothy R Young
• Samir M Younis, RPT
• Yousefi Dental Group of Downey Inc
• Martin Yrra
• Clara Yu, D.O.
• Patrick Yu
• William J Yule, CP
• Kenneth Yun, DO
• Sung Yun, PH.D., L.AC.
• Martina Zaki, DO

• Pharmacist in Downey, CA
• Providers in Downey, CA by specialty
• Pharmacist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 7, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.