HYUNSEOK KANG MD
NPI 1316108509
Internal Medicine - Medical Oncology in Stanford, CA

Active since June 19, 2008PECOS EnrolledAccepts Medicare Assignment
74.46/100
CMS Quality Rating
300 PASTEUR DR, STANFORD, CA 94305(650) 723-4000 Get Directions Write a Review

NPPES record last updated: December 8, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 8, 2025, Mar 28, 2025, Sep 3, 2018 and 1 more (4 updates tracked since 2016).

About Hyunseok Kang Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HYUNSEOK KANG MD (NPI 1316108509) is an individual medical oncology provider in Stanford, California, licensed in California (C156305) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, maintains a secondary practice location in Palo Alto, and is a graduate of Other (2002).

NPPES Registry Identity

NPI1316108509
Entity TypeIndividualMale
Primary Taxonomy207RX0202X
Provider Legal NameHYUNSEOK KANGCredential: MD
Location Address300 PASTEUR DRStanford, CA 94305-2200
Mailing Address300 Pasteur DrStanford, CA 94305-2200 · (650) 723-4000
Sole ProprietorNo
Medical School CMSOtherGraduated 2002
Enumeration DateJune 19, 2008
Last NPPES UpdateDecember 8, 20254 updates tracked since enumeration
NPPES CertifiedDecember 8, 2025
NPI 1316108509 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License Licensed in CA · C156305
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
Also ListedInternal MedicineTaxonomy 207R00000X · License C156305 (CA)
Also ListedInternal Medicine · Hematology & OncologyTaxonomy 207RH0003X · License 67057 (GA), C156305 (CA)
300 PASTEUR DR, Stanford, CA 94305

Secondary Practice Location 1

Location 1875 Blake Wilbur DrPalo Alto, CA 94304-2205 · Phone (650) 498-6000

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Hyunseok Kang Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3870727738
PECOS Enrollment IDI20180712003257
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
241 services91 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
75 services50 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
47 services47 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94305 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$206.04 typical visit price
range $70.37 – $206.04
Typical copayment $51.51 (range $17.59 – $51.51)
Most-billed visit code 99205
Established Patient
$121.77 typical visit price
range $23.96 – $169.60
Typical copayment $30.44 (range $5.99 – $42.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

74.46/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability76
Improvement Activities40
Cost46.68

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Gastroenterology)
300 PASTEUR DR, ALWAY BUILD M211, MC 5187
STANFORD, CA 94305
Radiology (Vascular & Interventional Radiology)
300 PASTEUR DR
STANFORD, CA 94305
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DR
STANFORD, CA 94305
Radiology (Diagnostic Radiology)
300 PASTEUR DR
STANFORD, CA 94305
Nurse Practitioner
300 PASTEUR DR
STANFORD, CA 94305
Neurological Surgery
300 PASTEUR DR
STANFORD, CA 94305
Pathology (Anatomic Pathology & Clinical Pathology)
300 PASTEUR DR, LANE 235
STANFORD, CA 94305
Internal Medicine (Critical Care Medicine)
300 PASTEUR DR
STANFORD, CA 94305

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Hyunseok Kang's NPI number?

The NPI number for Hyunseok Kang is 1316108509. It was assigned to this individual provider in the NPPES registry on June 19, 2008.

Where is Hyunseok Kang located?

Hyunseok Kang practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-4000.

What is Hyunseok Kang's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Hyunseok Kang enrolled in Medicare?

Yes. Hyunseok Kang is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Hyunseok Kang was last updated on December 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.