Guillaume D. Dumont, MD

Medicare activity in 2024

Official CMS public-use data for Guillaume D. Dumont, 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. Injection, methylprednisolone acetate, 1 mg (J1010)11,440 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)207 services
3. X-ray of foot, minimum of 3 views (73630)191 services
4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)178 services
5. X-ray of shoulder, minimum of 2 views (73030)174 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%
• Arthritis65%
• Diabetes34%
• Ischemic heart disease28%
• Anxiety28%

Hospitals where Guillaume D. Dumont works

Medicare's Facility Affiliation Data lists Guillaume D. Dumont 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.

• Lexington Medical CenterWest Columbia, SC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 420073
• McLeod Health ClarendonManning, SC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 420109

Practice locations

Addresses where Guillaume D. Dumont is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.

• 146 E Hospital DrWest Columbia, SC 29169
• 1846 Dutch Fork RdIrmo, SC 29063
• 2720 Sunset BlvdWest Columbia, SC 29169
• 3016 Longtown Commons DrColumbia, SC 29229
• 46 E Hospital Dr, Suite 200West Columbia, SC 29169 (803) 936‑7530

Group practices

Medicare enrollment lists Guillaume D. Dumont as a member of this group (CMS data updated October 2, 2026).

• Lexington Health Inc904 clinicians in the group

Specialties

• Orthopedic Surgeryprimary
• Sports Medicinealso

Find other Orthopedic Surgery doctors in South Carolina →

Other orthopedic surgeons in West Columbia

Clinicians with the same Medicare primary specialty in West Columbia, SC — not a recommendation.

• Gautham Gondi, MD
• James C. McIntosh, MD
• Daniel P. Deasis, MD
• David R. Kingery, MD
• Justin R. Knight, MD
• Allen J. Barnes Jr., MD
• Matison L. Boyer, MD
• Andrew W. Piasecki, MD

All orthopedic surgeons in West Columbia →

Other clinicians in Lexington Health Inc

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

• David P. Lyle, MD
• Justin E. Fichtner, MD
• Cierra Oneal
• Ashley M. Dowling, CNA
• George M. Beaver, MD
• Paige E. Crowley, PA

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