Grzegorz Majcher, MD

Medicare activity in 2024

Official CMS public-use data for Grzegorz Majcher, 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)1,622 services
2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)453 services
3. Critical care, first 30-74 minutes (99291)114 services
4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)89 services
5. Dialysis services, 4 or more physician visits per month (20 years or older) (90960)68 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 disease75%
• Diabetes63%
• Arthritis54%
• Ischemic heart disease50%

Hospitals where Grzegorz Majcher works

Medicare's Facility Affiliation Data lists Grzegorz Majcher 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.

• Providence Little Company of Mary Medical Center TorranceTorrance, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 050353
• Torrance Memorial Medical CenterTorrance, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050351

Practice locations

Addresses where Grzegorz Majcher is enrolled with Medicare (CMS data updated October 2, 2026).

• 3858 Carson St, Suite 123Torrance, CA 90503
• 3858 W Carson St, Suite 123Torrance, CA 90503 (310) 316‑1015

Specialties

• Internal Medicineprimary
• Nephrologyalso

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Torrance

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

• Janet H. Lee, DO
• Matthew J. Budoff, MD
• Hui-I E. Hsieh, MD
• Shannon J. Reider, DO
• Rubens J. Song, MD
• Kristen M. Gutermuth, MD
• Richard M. Butlig, MD
• Jonathan Sung, MD

All internal medicine doctors in Torrance →

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