Derek Chang

Primary specialty

General Practice DentistryTaxonomy code 1223G0001X

License

113634 Issued in CA

Practice address

345 W Portal Ave Ste 210
San Francisco, CA 94127-1429

Phone

(415) 681-1011

NPI assigned

Sep 24, 2026

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

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

{
    "created_epoch": "1790208000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790294400000",
    "number": "1356254981",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "345 W PORTAL AVE STE 210",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941271429",
            "telephone_number": "415-681-1011"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "345 W PORTAL AVE STE 210",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941271429",
            "telephone_number": "415-681-1011"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHANG",
        "first_name": "DEREK",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2026-09-24",
        "last_updated": "2026-09-25",
        "certification_date": "2026-09-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "CA",
            "license": "113634",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Cindy Hsiangchia Chang, D.M.D.
• Claire Chang, BA
• Clifford Karl Chang, O.D.
• David S. Chang, MD
• Denise Pamela Chang, M.D.
• Edward Chang, MD
• Ellen Yulin Chang, MD
• Emily Chang, CNIM
• Erin Sage Chang, PHARMD
• Esther Hsuan-Hsin Chang, M.D.

• General Practice Dentistry in San Francisco, CA
• Providers in San Francisco, CA by specialty
• General Practice Dentistry in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 25, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.