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Interventional Cardiology

Joseph T. Elliott Iii, MD

Works at hospitals in Watertown, SD · South Dakota

Summary

Dr. Joseph T. Elliott Iii, MD is an interventional cardiologist at 401 9th Ave NW, Watertown, SD 57201. Phone: (605) 882-7000. Accepts Medicare assignment. In 2024, Joseph T. Elliott Iii had 1,727 Original Medicare patients and 3,634 services. NPI 1669850269. 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.

  • Specialty: Interventional cardiologist (Medicare lists Interventional Cardiology)
  • Address: 401 9th Ave NW, Watertown, SD 57201 · Directions
  • Phone: (605) 882‑7000
  • Medicare: Accepts Medicare assignment
  • Hospital: Prairie Lakes Healthcare System, Inc
  • Group practice: Prairie Lakes Health Care System Inc
  • Medical school: graduated 2015 (11 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Joseph T. Elliott Iii, 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 Joseph T. Elliott Iii accept Medicare assignment?
Yes. Medicare's clinician data says Joseph T. Elliott Iii 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 Joseph T. Elliott Iii see?
In 2024, CMS data shows 1,727 Original Medicare patients and 3,634 services for Joseph T. Elliott Iii. This counts Original Medicare only and measures volume, not quality.
What is Joseph T. Elliott Iii's NPI number?
1669850269. 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 Joseph T. Elliott Iii, 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 patients1,727
Services billed to Medicare3,634
Different services or procedures57
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)1,601 services
  2. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)586 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)346 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)122 services
  5. Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)101 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%
  • Arthritis50%
  • Ischemic heart disease40%
  • Diabetes36%
  • Chronic kidney disease33%

Hospitals where Joseph T. Elliott Iii works

Medicare's Facility Affiliation Data lists Joseph T. Elliott Iii 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.

Practice locations

Addresses where Joseph T. Elliott Iii is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Joseph T. Elliott Iii as a member of this group (CMS data updated October 2, 2026).

  • Prairie Lakes Health Care System Inc109 clinicians in the group

Specialties

Find other Interventional Cardiology doctors in South Dakota →

Other interventional cardiologists in South Dakota

Clinicians with the same Medicare primary specialty in South Dakota — not a recommendation.

All interventional cardiologists in South Dakota →

Other clinicians in Prairie Lakes Health Care System Inc

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

Clinician information

CredentialMD
Graduation year2015 (11 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1669850269
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