Aymara Y. Chang Lopez, MD

Medicare activity in 2024

Official CMS public-use data for Aymara Y. Chang Lopez, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)98 services
2. Hospital discharge day management, 30 minutes or less (99238)33 services
3. 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)23 services
4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)20 services
5. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)19 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 cholesterol66%
• Diabetes62%
• Chronic kidney disease43%
• Arthritis42%
• Heart failure40%

Hospitals where Aymara Y. Chang Lopez works

Medicare's Facility Affiliation Data lists Aymara Y. Chang Lopez 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.

• University Medical Center of El PasoEl Paso, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 450024

Practice locations

Addresses where Aymara Y. Chang Lopez is enrolled with Medicare (CMS data updated October 2, 2026).

• 4801 Alberta AveEl Paso, TX 79905 (915) 215‑4600

Group practices

Medicare enrollment lists Aymara Y. Chang Lopez as a member of this group (CMS data updated October 2, 2026).

• Texas Tech University Health Sciences Center El Paso304 clinicians in the group

Specialties

• Infectious Diseaseprimary
• Internal Medicinealso

Find other Infectious Disease doctors in Texas →

Other infectious disease doctors in El Paso

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

• Rhonda V. Fleming, MD
• Antonio M. Ortega, MD
• Ogechika K. Alozie, MD
• Alberto Contreras, MD
• Cesar R. Calianga, MD
• Man T. Lam, MD
• Armando D. Meza, MD
• Richard E. Pieri, MD

All infectious disease doctors in El Paso →

Other clinicians in Texas Tech University Health Sciences Center El Paso

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

• David G. Pritchard, MD
• Mireille M. Mbah, MD
• Jasper K. Mesarch, DO
• Claudia M. Prospero Ponce, MD
• Neha Sehgal, MD
• Eugene P. Toy, 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