Timothy S. Kristedja, MD

Medicare activity in 2024

Official CMS public-use data for Timothy S. Kristedja, 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. Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) (Q0138)24,480 services
2. Injection, aprepitant, 1 mg (J0185)5,590 services
3. Injection, denosumab, 1 mg (J0897)2,340 services
4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)832 services
5. Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)771 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 cholesterol75%
• High blood pressure74%
• Arthritis56%
• Ischemic heart disease46%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)39%
• Osteoporosis30%

Hospitals where Timothy S. Kristedja works

Medicare's Facility Affiliation Data lists Timothy S. Kristedja 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.

• Saint John's Health CenterSanta Monica, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050290

Practice locations

Addresses where Timothy S. Kristedja is enrolled with Medicare (CMS data updated October 2, 2026).

• 12555 W Jefferson BlvdLos Angeles, CA 90066
• 2001 Santa Monica Blvd, Suite 560wSanta Monica, CA 90404 (310) 453‑5654
• 2121 Santa Monica BlvdSanta Monica, CA 90404 (310) 829‑5511
• 2336 Santa Monica Blvd, Suite 204Santa Monica, CA 90404 (310) 829‑6789

Group practices

Medicare enrollment lists Timothy S. Kristedja as a member of this group (CMS data updated October 2, 2026).

• Providence Saint Johns Medical Foundation281 clinicians in the group

Specialties

• Hematology/Oncologyprimary

Find other Hematology/Oncology doctors in California →

Other hematologist-oncologists in Los Angeles

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

• Alexander H. Song, MD
• Guy Young, MD
• Nikita V. Baclig, MD
• Thomas D. Coates, MD
• Noah C. Federman, MD
• David M. Tishler, MD
• Kirit V. Gala, MD
• Wanxing Chai-Ho, MD

All hematologist-oncologists in Los Angeles →

Other clinicians in Providence Saint Johns Medical Foundation

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

• Jason W. Tarpley, MD
• Jessica K. Yee, MD
• Wakana Saeki, MD
• Elizabeth Spence, DO
• Sara M. Klevens, MD
• Daniel C. Brooks, 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