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Dr. Chad E. Mccarthy, CHAD MCCARTHY

Emergency Medicine (Emergency Medicine Physician)

  • Medicare participating

At a glance

Years since graduation
15
In the NPI registry since
2009
Medicare patients seen, 2024
542

Licensed in California since 2012, 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. What an NPI is

Education and training

  • 2011Medical school: Johns Hopkins University School of Medicine
  • 2009Registered with an NPI (national billing number; not a license date)

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

  • Emergency Medicine Physician primary
    CA license A122169 (first issued 2012; current)
  • Pediatrics Physician
    CA license A122169 (first issued 2012; current)

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

Map: Emergency Medicine 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
542
Services billed
991
Patients’ average age
78
Most frequent Medicare services, 2023
ServiceTimesPatients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only276265
Emergency department visit with high level of medical decision making201198
Emergency department visit with moderate level of medical decision making137132
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes8483
Critical care, first 30-74 minutes8382
Electrocardiogram (ecg) 1 to 3 leads with review by physician only5756
Emergency department visit with low level of medical decision making2929

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.

Other Emergency Medicine clinicians in Oakland

Sources

NPI registry (CMS NPPES, November 2026; record last updated December 9, 2021), 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 1629307756. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.