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Dr. Thomas S. Ahern, M.D.

Cardiology (Cardiovascular Disease Physician)

10666 N Torrey Pines Rd
La Jolla, CA 92037

Who else practices at this address →

San Diego County includes primary care (1% of residents) and mental health (1% of residents) shortage areas. About shortage areas

Call (858) 554-4039

At a glance

In the NPI registry since
2005

Licensed in California since 2000, 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

  • 2005Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Medicare’s Care Compare data doesn’t list this clinician’s medical school. 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

  • Cardiovascular Disease Physician primary
    CA license G85906 (first issued 2000; delinquent)

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

Map: Cardiology per capita by county →

Other Cardiology clinicians in La Jolla

Sources

NPI registry (CMS NPPES, November 2026; record last updated March 7, 2017), 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 Information is self-reported or billed data and may be out of date; call before visiting.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 1073599858. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.