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Dr. Eric Yi, DO

Internal Medicine (Internal Medicine Physician)

  • Medicare participating

At a glance

Years since graduation
7
In the NPI registry since
2019
Medicare patients seen, 2024
255

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

  • 2019Registered with an NPI (national billing number; not a license date)

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

  • Internal Medicine Physician primary
    TN license 4788

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

Map: Internal 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
255
Services billed
769
Patients’ average age
75
Most frequent Medicare services, 2023
ServiceTimesPatients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes425161
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes17075
Hospital discharge day management, more than 30 minutes6060
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes5959
Hospital discharge day management, 30 minutes or less4646
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes2411
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes2020

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 5 payments worth $297 in total to this clinician.

By type
Food and Beverage$297

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 Tennessee →

Other Internal Medicine clinicians in Knoxville

Sources

NPI registry (CMS NPPES, November 2026; record last updated August 2, 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 1245893544. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.