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Dr. John J. Tyner, M.D.

Cardiothoracic Surgery (Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician)

9898 Genesee Ave
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) 824-5363

  • Medicare participating

At a glance

Years since graduation
47
In the NPI registry since
2006
Medicare patients seen, 2024
230

Licensed in California since 1991, 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

  • 2006Registered 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

  • Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician primary
    CA license G70821 (first issued 1991; current)

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

Map: Cardiothoracic Surgery 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
230
Services billed
463
Patients’ average age
76
Most frequent Medicare services, 2023
ServiceTimesPatients
New patient office or other outpatient visit, 45-59 minutes9393
Established patient office or other outpatient visit, 30-39 minutes4942
Replacement of aortic valve through the skin and femoral artery3333
Established patient office or other outpatient visit, 40-54 minutes2826
Harvest of vein using an endoscope2323
Coronary artery bypass using artery graft, 1 graft2020
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes2020
Removal of lymph nodes of chest cavity using an endoscope2020
New patient office or other outpatient visit, 30-44 minutes2020
Exam of lung with removal of lung lobe using an endoscope1919

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.

Payments from drug and device companies

In 2025, 13 companies reported 26 payments worth $1,684 in total to this clinician.

By company
Artivion, Inc.$505
Edwards Lifesciences Corporation$403
Atricure, Inc.$167
Davol Inc.$137
Abiomed$106
Medtronic, Inc.$106
Baxter Healthcare$90.46
Ethicon US, LLC$51.70
By type
Food and Beverage$1,359
Travel and Lodging$326

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Oct 17, 2025Artivion, Inc.
Oct 17, 2025
Travel and Lodging
AMDS-Ascyrus Medical · Cardiovascular and vascular surgery · travel to Las Vegas, NV · in-kind
$307
Jun 23, 2025Intuitive Surgical, Inc.
Jun 23, 2025
Travel and Lodging
Da Vinci Surgical System · SURGERY · travel to PHOENIX, AZ · in-kind
$19.00

Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.

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 →

Industry-funded research

Named as a principal investigator on 1 industry-funded study in 2025, from 1 company. The companies reported $3,483 in research payments for these studies, mostly to the institutions running them.

  • CoreValve SURTAVI
    Medtronic, Inc.

From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.

Other Cardiothoracic Surgery clinicians in La Jolla

Sources

NPI registry (CMS NPPES, November 2026; record last updated August 16, 2019), 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 1144270620. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.