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Dr. Ajit K. Tharakan, M.D.

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

  • Medicare participating

At a glance

Years since graduation
32
In the NPI registry since
2006
Medicare patients seen, 2024
260

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
    OK license 32742 · MA license 227200 · MO license 2009011902

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
260
Services billed
481
Patients’ average age
75
Most frequent Medicare services, 2023
ServiceTimesPatients
New patient office or other outpatient visit, 45-59 minutes160160
Replacement of aortic valve through the skin and femoral artery7575
Harvest of vein using an endoscope4747
Coronary artery bypass using artery graft, 1 graft4646
Established patient office or other outpatient visit, 30-39 minutes2322
Coronary artery bypass using vein or artery graft, 2 grafts2323
Coronary artery bypass using vein or artery graft, 3 grafts1414
Established patient office or other outpatient visit, 20-29 minutes1212

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, 7 companies reported 43 payments worth $2,724 in total to this clinician.

By company
Abiomed$2,089
Abbott Laboratories$396
Baxter Healthcare$94.12
Edwards Lifesciences Corporation$66.96
Surmodics, Inc.$26.93
Ethicon US, LLC$25.98
DePuy Synthes Sales Inc.$24.57
By type
Food and Beverage$2,259
Travel and Lodging$465

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Nov 21, 2025Abiomed
Nov 21, 2025
Travel and Lodging
travel to Boston, MA · in-kind
$401
Nov 7, 2025Abiomed
Nov 7, 2025
Travel and Lodging
travel to Boston, MA · in-kind
$64.26

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 Oklahoma →

Other Cardiothoracic Surgery clinicians in Tulsa

Sources

NPI registry (CMS NPPES, November 2026; record last updated April 12, 2022), 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 1700844453. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.