Ronald J. Kall Jr., MD

Medicare activity in 2024

Official CMS public-use data for Ronald J. Kall Jr., 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 50 minutes (99233)421 services
2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)165 services
3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)81 services
4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)44 services
5. Hospital discharge day management, more than 30 minutes (99239)22 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%
• Arthritis75%
• Diabetes54%
• Chronic kidney disease50%
• Ischemic heart disease48%

Hospitals where Ronald J. Kall Jr. works

Medicare's Facility Affiliation Data lists Ronald J. Kall Jr. 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.

• Keck Hospital of USCLos Angeles, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 050696
• USC Verdugo Hills HospitalGlendale, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050124

Practice locations

Addresses where Ronald J. Kall Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

• 1520 San Pablo StLos Angeles, CA 90033 (800) 872‑2273

Group practices

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

• USC Care Medical Group Inc1,380 clinicians in the group

Specialties

• Hospitalistprimary
• Internal Medicinealso

Find other Hospitalist doctors in California →

Other hospitalists in Los Angeles

Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.

• Wilson D. Ricketts, MD
• Angeli O. Agatep, MD
• Niel K. Patel, MD
• Loni R. Tang, MD
• Gerardo Canedo Jr., MD
• Gary I. Gutkin, MD
• Jae H. Lee, MD
• Derek J. Orejel, MD

All hospitalists in Los Angeles →

Other clinicians in USC Care Medical Group Inc

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

• David R. Freyer, DO
• Neel K. Mann, MD
• Jennifer Y. Lu, MD
• Ching Fei Chang, MD
• Amy S. Kong, NP
• Takashi Harano, 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