Duncan Hungvinh Giang, RPH

Primary specialty

PharmacistTaxonomy code 183500000X

License

91819 Issued in CA

Practice address

1550 W Manchester Ave
Los Angeles, CA 90047-5424

Phone

(323) 565-3000

NPI assigned

Aug 26, 2021

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

Medicare enrollment (NPD)

Not enrolled

Credentials

Registered Pharmacist

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.

• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • Santa Clarita, CA
  • NPI 1316409410
  NPD (past)
• University of Southern California School of Pharmacy

  • Clinic/Center
  • Los Angeles, CA
  • NPI 1598138653
  NPD (past)

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

{
    "created_epoch": "1629936000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764633600000",
    "number": "1699442632",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "13915 NUBIA ST",
            "city": "BALDWIN PARK",
            "state": "CA",
            "postal_code": "917061447",
            "telephone_number": "626-329-9852"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1550 W MANCHESTER AVE",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900475424",
            "telephone_number": "323-565-3000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GIANG",
        "first_name": "DUNCAN",
        "middle_name": "HUNGVINH",
        "credential": "RPH",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-08-26",
        "last_updated": "2025-12-02",
        "certification_date": "2025-12-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "183500000X",
            "taxonomy_group": "",
            "desc": "Pharmacist",
            "state": "CA",
            "license": "91819",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Alessandra Giampaolo, MSW
• Gian Nhan MD Inc
• Isabella Honore Gianatiempo
• Jennifer Ann Giancola, LMFT
• Whitney J. Giancola, MS, CCC-SLP
• Michael Giang, DC
• Ngan Giang, PHARM.D.
• Joseph Giani
• Roger Giani, M.D.
• Sarah Giannella, APN

• Pharmacist in Los Angeles, CA
• Providers in Los Angeles, CA by specialty
• Pharmacist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 2, 2025; 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.