Nelson R. Kalaf, MD

Medicare activity in 2024

Official CMS public-use data for Nelson R. Kalaf, 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. Insertion of needle into vein for collection of blood sample (36415)337 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)337 services
3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)98 services
4. Advance care planning, first 30 minutes (99497)91 services
5. Annual depression screening, 5 to 15 minutes (G0444)86 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%
• Chronic kidney disease56%
• Diabetes49%
• Arthritis37%
• Ischemic heart disease33%

Hospitals where Nelson R. Kalaf works

Medicare's Facility Affiliation Data lists Nelson R. Kalaf 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.

• Doctors Hospital at RenaissanceEdinburg, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 450869
• Mission Regional Medical CenterMission, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450176
• Rio Grande Regional HospitalMcAllen, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450711

Practice locations

Addresses where Nelson R. Kalaf is enrolled with Medicare (CMS data updated October 2, 2026).

• 2023 E Griffin PkwyMission, TX 78572 (956) 585‑2525

Group practices

Medicare enrollment lists Nelson R. Kalaf as a member of this group (CMS data updated October 2, 2026).

• Nelson R. Kalaf, MD P.A.2 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Texas →

Other internal medicine doctors in Mission

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

• Anu B. Swarup, MD
• Alcides N. Amador, MD
• Subramaniam Jagadeesan, MD
• Manuel A. Urbina, MD
• Mourad Alsabbagh, MD
• Jose Escandon, MD
• Charity V. Abreu-Lawrence, MD

All internal medicine doctors in Mission →

Other clinicians in Nelson R. Kalaf, MD P.A.

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

• Daniela E. Garcia, PA

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