Louis Tsarouhas, MD

Medicare activity in 2024

Official CMS public-use data for Louis Tsarouhas, 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)567 services
2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)469 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)204 services
4. Administration of influenza virus vaccine (G0008)146 services
5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)141 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 cholesterol75%
• High blood pressure73%
• Arthritis55%
• Ischemic heart disease38%
• Anxiety35%
• Diabetes29%

Hospitals where Louis Tsarouhas works

Medicare's Facility Affiliation Data lists Louis Tsarouhas 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.

• Capital Health Medical Center - HopewellPennington, NJ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 310044
• Robert Wood Johnson University Hospital at HamiltonHamilton, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310110

Practice locations

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

• 2999 Princeton Pike, Suite 3Lawrenceville, NJ 08648 (609) 882‑9333

Group practices

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

• RWJBH Primary Care Services267 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in New Jersey →

Other internal medicine doctors in Lawrenceville

Clinicians with the same Medicare primary specialty in Lawrenceville, NJ — not a recommendation.

• Ameer Abdelrahman, MD
• Peter Lee, MD
• Izabella K. Zathureczky, MD
• Mahmood I. Siddique, DO
• Richard J. Friedland, MD
• Naila H. Wasti, MD
• Mark J. Weinstein, MD
• Sheila Bagchi, MD

All internal medicine doctors in Lawrenceville →

Other clinicians in RWJBH Primary Care Services

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

• Silvia M. Hughes, NP
• Ian M. Smith, DO
• Richard J. Solomon, MD
• Pooja Bhargava, DO
• Harshad Chaudhari, MD
• Shankar Santhanam, 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