Karthikeyan Muthuswamy, MD

Medicare activity in 2024

Official CMS public-use data for Karthikeyan Muthuswamy, 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. Emergency department visit with high level of medical decision making (99285)17 services
2. Emergency department visit with moderate level of medical decision making (99284)12 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 pressure70%
• High cholesterol70%
• Arthritis57%
• Diabetes36%
• Depression34%
• Anxiety32%

Hospitals where Karthikeyan Muthuswamy works

Medicare's Facility Affiliation Data lists Karthikeyan Muthuswamy 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.

• Santa Monica - UCLA Medical Center & Orthopaedic HospitalSanta Monica, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050112
• Valley Regional Medical CenterBrownsville, TX · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 450662

Practice locations

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

• 100 E Alton Gloor Blvd, Valley Regional Medical CenterBrownsville, TX 78526 (956) 350‑7000

Group practices

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

• Emergency Medicine Services of TX, PLLC400 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in Texas →

Other emergency medicine doctors in Brownsville

Clinicians with the same Medicare primary specialty in Brownsville, TX — not a recommendation.

• Cleo A. Desmedt, MD
• Linda Paniagua, MD
• Gregory P. Johnson, MD
• Stephen Russ, MD
• German Candanedo, MD
• Henry Platt, MD
• Gregory B. Fehr, MD
• Hazem Arafeh, MD

All emergency medicine doctors in Brownsville →

Other clinicians in Emergency Medicine Services of TX, PLLC

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

• Cleo A. Desmedt, MD
• Huma Kausar, DO
• Stephanie M. Marrero-Borrero, MD
• Tanveer H. Mughal, MD
• Rami Ali, MD
• Degil Omictin, NP

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