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Dr. Jonathan A. Eash, M.D.

Anesthesiology (Anesthesiology Physician)

  • Medicare participating

At a glance

Years since graduation
23
In the NPI registry since
2007
Medicare patients seen, 2024
1,064

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

  • 2003Medical school: Indiana University School of Medicine
  • 2007Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

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

  • Anesthesiology Physician primary
    IN license 01061586

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

Map: Anesthesiology 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
1,064
Services billed
11,001
Patients’ average age
74
Most frequent Medicare services, 2023
ServiceTimesPatients
Established patient office or other outpatient visit, 30-39 minutes793443
Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level358301
Established patient office or other outpatient visit, 20-29 minutes325254
Mri scan of lower spinal canal without contrast253246
New patient office or other outpatient visit, 45-59 minutes239239
X-ray of lower and sacral spine, minimum of 4 views235231
Aspiration and/or injection of fluid from large joint220186
Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance182148
Injection of substance into lower spine canal using imaging guidance158138
Injection of lower or sacral spine facet joint using imaging guidance, single level150103

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 30 payments worth $1,836 in total to this clinician.

By type
Food and Beverage$1,836

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 Indiana →

Other Anesthesiology clinicians in South Bend

Sources

NPI registry (CMS NPPES, November 2026; record last updated January 16, 2025), 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 1356557912. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.