Roland A. Medellin, MD

Medicare activity in 2024

Official CMS public-use data for Roland A. Medellin, 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)113 services
2. Emergency department visit with moderate level of medical decision making (99284)106 services
3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)62 services
4. Insertion of needle into vein for collection of blood sample (36415)23 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 cholesterol73%
• Arthritis45%
• Diabetes39%
• Depression33%
• Anxiety33%

Hospitals where Roland A. Medellin works

Medicare's Facility Affiliation Data lists Roland A. Medellin 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.

• Yoakum Community HospitalYoakum, TX · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 451346

Practice locations

Addresses where Roland A. Medellin is enrolled with Medicare (CMS data updated October 2, 2026).

• 111 S Laurel AveLuling, TX 78648 (830) 875‑6399
• 1200 Carl Ramert DrYoakum, TX 77995 (361) 293‑2321
• 228 Saint George StGonzales, TX 78629 (830) 672‑6511

Group practices

Medicare enrollment lists Roland A. Medellin as a member of these groups (CMS data updated October 2, 2026).

• Lone Star Emergency Associates LLC14 clinicians in the group
• Community Health Centers of South Central Texas, Inc.7 clinicians in the group

Specialties

• Emergency Medicineprimary
• Family Practicealso

Find other Emergency Medicine doctors in Texas →

Other emergency medicine doctors in Texas

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

• Zsolt Fodor, DO
• Duane A. Penshorn, MD
• Abid A. Kagalwalla, MD
• Robert Harbolovic, MD
• Eric F. Pittman, MD
• Jennifer M. Gonzales, DO
• Stephen S. Park, MD
• Paul A. Burns, MD

All emergency medicine doctors in Texas →

Other clinicians in Lone Star Emergency Associates LLC

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

• Fred Martin, MD
• Gregory S. Gremmel, MD
• Todd L. Francis, DO
• Chijioke F. Isinguzo, MD
• Christopher C. Happel, MD
• Celeste M. Leon, 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