Brenda J. Lanan, MD

Medicare activity in 2024

Official CMS public-use data for Brenda J. Lanan, 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 moderate level of medical decision making (99284)152 services
2. Emergency department visit with high level of medical decision making (99285)131 services
3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)97 services
4. Critical care, first 30-74 minutes (99291)41 services
5. Emergency department visit with low level of medical decision making (99283)17 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%
• Arthritis56%
• Diabetes35%
• Ischemic heart disease30%
• Chronic kidney disease30%

Hospitals where Brenda J. Lanan works

Medicare's Facility Affiliation Data lists Brenda J. Lanan 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.

• Baptist Neighborhood Hospital Thousand OaksSan Antonio, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 670078
• Methodist HospitalSan Antonio, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450388
• Methodist Hospital Stone OakSan Antonio, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 670055

Practice locations

Addresses where Brenda J. Lanan is enrolled with Medicare (CMS data updated October 2, 2026).

• 12412 Judson RdLive Oak, TX 78233 (210) 757‑7000

Group practices

Medicare enrollment lists Brenda J. Lanan 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 Live Oak

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

• Benjamin D. Walrath, MD
• Peter J. Carlson, MD
• Bryan M. Dunn, MD
• James D. Haycock, DO
• Alexander C. Smith, MD
• Tony Mathew, MD
• Alexander B. Norinsky, DO
• Trisha M. Arno, DO

All emergency medicine doctors in Live Oak →

Other clinicians in Emergency Medicine Services of TX, PLLC

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

• Gilberto Arbelaez, MD
• Anthony Netzel, DO
• Benjamin D. Walrath, MD
• Zachary O. Moore, MD
• Samuel Simpson, MD
• Earl L. Miller Jr., 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