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Interventional Cardiology

Charles J. Allderdice, MD

Works at hospitals in Crossville, TN · Lenoir City, TN · Knoxville, TN … · Tennessee

Summary

Dr. Charles J. Allderdice, MD is an interventional cardiologist at 9320 Parkwest Blvd, Knoxville, TN 37923. Phone: (865) 373-7100. Accepts Medicare assignment. In 2024, Charles J. Allderdice had 1,659 Original Medicare patients and 2,991 services. NPI 1104262096. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Charles J. Allderdice, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Charles J. Allderdice accept Medicare assignment?
Yes. Medicare's clinician data says Charles J. Allderdice accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Charles J. Allderdice see?
In 2024, CMS data shows 1,659 Original Medicare patients and 2,991 services for Charles J. Allderdice. This counts Original Medicare only and measures volume, not quality.
What is Charles J. Allderdice's NPI number?
1104262096. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Charles J. Allderdice, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients1,659
Services billed to Medicare2,991
Different services or procedures58
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)1,087 services
  2. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)385 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)241 services
  4. Anticoagulant management of patient taking warfarin (93793)148 services
  5. Blood test, clotting time (85610)147 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis56%
  • Ischemic heart disease51%
  • Atrial fibrillation41%
  • Chronic kidney disease38%

Hospitals where Charles J. Allderdice works

Medicare's Facility Affiliation Data lists Charles J. Allderdice at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Cumberland Medical CenterCrossville, TN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 440009
  • Fort Loudon Medical CenterLenoir City, TN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 440110
  • Parkwest Medical CenterKnoxville, TN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 440173
  • Roane Medical CenterHarriman, TN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 440031
  • Starr Regional Medical Center AthensAthens, TN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 440068

Practice locations

Addresses where Charles J. Allderdice is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Charles J. Allderdice as a member of these groups (CMS data updated October 2, 2026).

  • Covenant Medical Group Inc365 clinicians in the group
  • Parkwest Medical Center57 clinicians in the group

Specialties

Find other Interventional Cardiology doctors in Tennessee →

Other interventional cardiologists in Knoxville

Clinicians with the same Medicare primary specialty in Knoxville, TN — not a recommendation.

All interventional cardiologists in Knoxville →

Other clinicians in Covenant Medical Group Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of Tennessee, Hsc, College Of Medicine
Graduation year2013 (13 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1104262096
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians