Mehrdad Yousefian, MD

Medicare activity in 2024

Official CMS public-use data for Mehrdad Yousefian, 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. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)592 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)562 services
3. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)242 services
4. Hemoglobin a1c level (83036)227 services
5. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)224 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%
• Diabetes35%
• Arthritis32%
• Ischemic heart disease28%
• Anxiety28%

Hospitals where Mehrdad Yousefian works

Medicare's Facility Affiliation Data lists Mehrdad Yousefian 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.

• MUSC Health Chester Medical CenterChester, SC · Acute Care Hospital · Emergency services: listed by Medicare · CCN 420019
• Rock Hill Hospital-Piedmont Medical CenterRock Hill, SC · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 420002

Practice locations

Addresses where Mehrdad Yousefian is enrolled with Medicare (CMS data updated October 2, 2026).

• 200 Herlong Ave SRock Hill, SC 29732
• 3248 Edgeland HwyRichburg, SC 29729 (803) 789‑6111

Group practices

Medicare enrollment lists Mehrdad Yousefian as a member of this group (CMS data updated October 2, 2026).

• Piedmont Physician Network LLC89 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in South Carolina →

Other internal medicine doctors in Rock Hill

Clinicians with the same Medicare primary specialty in Rock Hill, SC — not a recommendation.

• Bret M. Garretson, MD
• Pramodh Chanumolu, MD
• Paul R. Ponnaiya, MD
• Bruce H. Chamberlain, MD
• Richmond P. Allan, MD
• Myo M. Nwe, MD
• Deovyaas S. Sharma, MD
• Sushil K. Das, MD

All internal medicine doctors in Rock Hill →

Other clinicians in Piedmont Physician Network LLC

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

• Katrina Herring, MD
• Andrew M. Futterman, DO
• Ansley L. Hilton, MD
• Denine Raymond, NP
• Tiffany S. Kennedy, NP
• Trevor S. Gravely, 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