Quick answers
- Which hospitals does James J. Jang work at?
- Medicare's official clinician data lists James J. Jang at 1 hospital: Kaiser Foundation Hospital-San Jose. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James J. Jang see patients?
- Medicare's clinician data lists 8 practice locations, including San Jose, CA and Santa Clara, CA. Call before your visit to confirm the address.
- What is James J. Jang's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine and Peripheral Vascular Disease.
- Does James J. Jang accept Medicare assignment?
- Yes. Medicare's clinician data says James J. Jang accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for James J. Jang?
- (408) 972-3000, as listed in official Medicare / NPI Registry data.
- What is James J. Jang's NPI number?
- 1679651152. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where James J. Jang works
Medicare's Facility Affiliation Data lists James J. Jang at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kaiser Foundation Hospital-San JoseSan Jose, CA · Acute Care Hospital · CCN 050604
Practice locations
Addresses where James J. Jang is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 250 Hospital PkwySan Jose, CA 95119 (408) 972‑3000
- 260 International CirSan Jose, CA 95119 (408) 972‑3000
- 270 International CirSan Jose, CA 95119 (408) 972‑3000
- 274 International CirSan Jose, CA 95119 (408) 972‑3000
- 276 International CirSan Jose, CA 95119 (408) 972‑6931
Group practices
Medicare enrollment lists James J. Jang as a member of this group (CMS data updated 2026-10-02).
- Permanente Medical Group Inc10,996 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in California →
Other cardiologists in San Jose
Clinicians with the same Medicare primary specialty in San Jose, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1679651152 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians