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Dr. Daniel W. Walsh, M.D.

Radiology (Diagnostic Radiology Physician)

  • Medicare participating

At a glance

Years since graduation
35
In the NPI registry since
2005
Medicare patients seen, 2024
4,317

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

  • 1991Medical school: Temple University School of Medicine
  • 2005Registered 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

  • Diagnostic Radiology Physician primary
    TN license 35956

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

Map: Radiology 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
4,317
Services billed
19,807
Patients’ average age
74
Most frequent Medicare services, 2023
ServiceTimesPatients
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml6,94075
Screening mammography656656
Screening 3d breast mammography541541
X-ray of chest, 1 view511464
Injection, gadoteridol, (prohance multipack), per ml30326
X-ray of chest, 2 views252249
Ct scan head or brain without contrast233230
Dxa bone density measurement of hip, pelvis, spine188188
Ct scan of abdomen and pelvis without contrast175173
Ct scan of chest without contrast158157

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.

Other Radiology clinicians in Knoxville

Sources

NPI registry (CMS NPPES, November 2026; record last updated March 30, 2026), 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 1649277070. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.