Alexander J. Lazar, MD

Medicare activity in 2024

Official CMS public-use data for Alexander J. Lazar, 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)77 services
2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)33 services
3. Emergency department visit with moderate level of medical decision making (99284)27 services
4. Critical care, first 30-74 minutes (99291)11 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 cholesterol72%
• Arthritis56%
• Chronic kidney disease42%
• Diabetes39%
• Ischemic heart disease38%

Hospitals where Alexander J. Lazar works

Medicare's Facility Affiliation Data lists Alexander J. Lazar 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.

• Memorial Hermann - Texas Medical CenterHouston, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · CCN 450068

Practice locations

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

• 5656 Kelley StHouston, TX 77026 (713) 566‑5000
• 6411 Fannin StHouston, TX 77030 (713) 704‑4000

Group practices

Medicare enrollment lists Alexander J. Lazar as a member of this group (CMS data updated October 2, 2026).

• UT Physicians1,765 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in Texas →

Other emergency medicine doctors in Houston

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

• Jeffrey A. Merlin, MD
• Derrick A. Mitchell, MD
• Sarah S. Shafer, MD
• Lael Hubbard, MD
• Jessica Quach, MD
• Safi B. Madain, DO
• Anil S. Menon, MD
• Rebecca L. Floyed, MD

All emergency medicine doctors in Houston →

Other clinicians in UT Physicians

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

• Todd B. Parker, CNA
• Asha B. Bhalwal, MD
• Ismael A. Salas De Armas, MD
• Taher Jamali, MD
• Monica B. Patel, MD
• Barsha Ghimire, 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