William J. Harris Iii, MD

Medicare activity in 2024

Official CMS public-use data for William J. Harris 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.

Most frequent services

1. Ultrasound study of arm or leg veins with compression and maneuvers (93970)257 services
2. Ultrasound study of one arm or leg veins with compression and maneuvers (93971)219 services
3. Ultrasound of both sides of head and neck blood flow (93880)178 services
4. Complete ultrasound study of arm and leg arteries (93923)159 services
5. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)87 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%
• Arthritis57%
• Diabetes47%
• Ischemic heart disease47%
• Chronic kidney disease42%

Hospitals where William J. Harris Iii works

Medicare's Facility Affiliation Data lists William J. Harris 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.

• Baptist Medical Center-LeakeCarthage, MS · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 251315
• Mississippi Baptist Medical CenterJackson, MS · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 250102

Practice locations

Addresses where William J. Harris Iii is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 10; the Medicare profile lists all.

• 1200 N State StJackson, MS 39202
• 1225 N State StJackson, MS 39202 (601) 292‑4261
• 1225 N State St, Suite 100Jackson, MS 39202 (769) 268‑6625
• 151 E Metro DrFlowood, MS 39232
• 151 E Metro Pkwy, Suite 201Flowood, MS 39232 (601) 973‑1680

Group practices

Medicare enrollment lists William J. Harris Iii as a member of this group (CMS data updated October 2, 2026).

• Medical Foundation of Central Mississippi Inc272 clinicians in the group

Specialties

• Cardiac Surgeryprimary

Find other Cardiac Surgery doctors in Mississippi →

Other cardiac surgeons in Mississippi

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

• Adam N. Protos, MD
• Robert J. Robbins, MD
• James C. Gilmore, MD
• Jason A. Williams, MD
• Athanasios Tsiouris, MD
• Jacob Moremen, MD
• Gregory W. Fink, MD

All cardiac surgeons in Mississippi →

Other clinicians in Medical Foundation of Central Mississippi Inc

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

• Kaitlyn R. Chow, MD
• Kimberly Washington, PT
• Lane E. Jones, PA
• Lynne C. Currie, NP
• Loren M. Harvey, PA
• Massie Headley, MD

Clinician information

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