NPIMap

Individual provider Active NPI

Hyunseok Kang, MD

  • Medical Oncology Physician
  • Stanford, CA
National Provider Identifier
1316108509
Registry record updated Dec 8, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Medical Oncology PhysicianTaxonomy code 207RX0202X
License
C156305 Issued in CA
Practice address
300 Pasteur Dr
Stanford, CA 94305-2200
Phone
(650) 723-4000
NPI assigned
Jun 19, 2008
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 8, 2025

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X C156305 CA
Hematology & Oncology Physician 207RH0003X 67057 GA
Medical Oncology Physician 207RX0202X C156305 CA Primary
Hematology & Oncology Physician 207RH0003X C156305 CA

Addresses

Primary practice location

300 Pasteur Dr
Stanford, CA 94305-2200

Mailing address

300 Pasteur Dr
Stanford, CA 94305-2200
Phone (650) 723-4000

Other practice location 1

875 Blake Wilbur Dr
Palo Alto, CA 94304-2205
Phone (650) 498-6000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MD, CA2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20131008000693 MD Practitioner - Medical OncologyPractitioner - Internal Medicine 3870727738 Reassigns benefits to 1 organization
I20180712003257 CA Practitioner - Medical OncologyPractitioner - Internal Medicine 3870727738 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Medical OncologyAlso: Internal Medicine
Education
Other, 2002
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
UCSF Medical Group Business ServicesGroup PAC ID 3779497870, 1,533 clinicians
Stanford Health CareGroup PAC ID 6709797491, 3,152 clinicians

Practice addresses (Care Compare)

1600 Divisadero St
San Francisco, CA 94115-3010
Phone (415) 476-1000

1600 Divisadero St
San Francisco, CA 94143-3010
Phone (415) 476-4029

300 Pasteur Dr
Stanford, CA 94305-2200
Phone (650) 723-4000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
87.01 of 100Reported as group
Quality
86.78
Improvement activities
40
Cost
70.46

Merit-based Incentive Payment System (MIPS)

Final score
100 of 100Reported as group
Quality
95
Improvement activities
40
Cost
80.65

Merit-based Incentive Payment System (MIPS)

Final score
84.89 of 100Reported as group
Quality
81.13
Improvement activities
40
Cost
71.5

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
C156305CAMDHematology & Oncology Physician
67057GAMDHematology & Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
UCSF Medical Group Business Services Internal Medicine CurrentSince Jun 26, 2018 Accepting new patients
University of California San Francisco CurrentSince Jun 26, 2018 Accepting new patients
Stanford Health Care CurrentSince Nov 18, 2025 Accepting new patients
UCSF Medical Group Business Services CurrentSince Jun 26, 2018 Accepting new patients
Stanford Health Care CurrentSince Nov 18, 2025 Accepting new patients
Johns Hopkins University Current Accepting new patients
University of California San Francisco CurrentSince Jun 26, 2018 Accepting new patients
Johns Hopkins University CurrentSince Sep 1, 2013 Accepting new patients
Stanford Health Care Internal Medicine Current Accepting new patients
Regents of the University of California Internal Medicine CurrentSince Jun 26, 2018 Accepting new patients
Johns Hopkins University Medical Oncology CurrentSince Sep 1, 2013 Accepting new patients
LPCH Medical Group Div of Lucile CurrentSince Nov 18, 2025 Accepting new patients

Locations

875 Blake Wilbur Dr
Palo Alto, CA 94304
Phone (650) 723-7621

725 Welch Rd
Palo Alto, CA 94304
Phone (650) 497-8979

2330 Post St
San Francisco, CA 94115
Phone (415) 502-4444

505 Parnassus Ave
San Francisco, CA 94143
Phone (415) 476-9058

1600 Divisadero St
#1770
San Francisco, CA 94143

1825 4th St
San Francisco, CA 94143
Phone (415) 353-3000

3333 California St
#S110
San Francisco, CA 94118
Phone (415) 514-2664

1600 Divisadero St
San Francisco, CA 94143
Phone (415) 353-7175

400 Parnassus Ave
#A632
San Francisco, CA 94143
Phone (415) 473-1000

300 Pasteur Dr
Stanford, CA 94305
Phone (650) 498-5710

600 N Wolfe St
Baltimore, MD 21287

5755 Cedar Ln
Columbia, MD 21044
Phone (410) 381-7171

Interoperability endpoints

  • Direct secure messaging: hkang98425@direct-ucsfmedicalcenter.org

Organizations & group practices 12

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.

Hospital & facility affiliations 9

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1213833600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765152000000",
    "number": "1316108509",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "875 Blake Wilbur Dr",
            "address_purpose": "LOCATION",
            "city": "Palo Alto",
            "state": "CA",
            "postal_code": "943042205",
            "country_code": "US",
            "telephone_number": "650-498-6000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KANG",
        "first_name": "HYUNSEOK",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-06-19",
        "last_updated": "2025-12-08",
        "certification_date": "2025-12-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "C156305",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "GA",
            "license": "67057",
            "primary": false
        },
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "CA",
            "license": "C156305",
            "primary": true
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "CA",
            "license": "C156305",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Stanford, CA

Sources for this page

Verify at the official NPI Registry.