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Dr. John H. Chiu, MD

Interventional Cardiology (Interventional Cardiology Physician)

  • Medicare participating

At a glance

Years since graduation
28
In the NPI registry since
2006
Medicare patients seen, 2024
1,582

Licensed in California since 2006, according to the Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 1998Medical school: Washington University School of Medicine
  • 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Interventional Cardiology Physician primary
    CA license A96144 (first issued 2006; current) · OH license 35081561
  • Cardiovascular Disease Physician
    CA license A96144 (first issued 2006; current)
  • Nuclear Cardiology Physician
    CA license A96144 (first issued 2006; current)

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Interventional Cardiology per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
1,582
Services billed
3,185
Patients’ average age
76
Most frequent Medicare services, 2023
ServiceTimesPatients
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function630626
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes351204
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only307304
Established patient office or other outpatient visit, 40-54 minutes239208
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report168161
Ultrasound of heart with color-depicted blood flow, rate and valve function150139
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito9890
Critical care, first 30-74 minutes8962
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes8785
Ultrasound of heart blood flow, valves and chambers, follow-up8584

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Payments from drug and device companies

In 2025, 3 companies reported 4 payments worth $80.42 in total to this clinician.

By type
Food and Beverage$80.42

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in California →

Other Interventional Cardiology clinicians in Oakland

Sources

NPI registry (CMS NPPES, November 2026; record last updated January 7, 2026), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1629007000. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.