Jason J. Gajarsa, MD

Medicare activity in 2024

Official CMS public-use data for Jason J. Gajarsa, 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. Infusion, normal saline solution , 1000 cc (J7030)15 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 pressure70%
• High cholesterol58%
• Diabetes50%
• Chronic kidney disease44%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)34%
• Heart failure32%

Hospitals where Jason J. Gajarsa works

Medicare's Facility Affiliation Data lists Jason J. Gajarsa 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.

• Kaiser Foundation Hospital - South BayHarbor City, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 050411

Practice locations

Addresses where Jason J. Gajarsa is enrolled with Medicare (CMS data updated October 2, 2026).

• 25821 Vermont AveHarbor City, CA 90710 (310) 325‑5111
• 25825 Vermont AveHarbor City, CA 90710 (310) 325‑5111
• 4725 -4733 Sunset BlvdLos Angeles, CA 90027 (323) 783‑4011
• 4733 W Sunset BlvdLos Angeles, CA 90027 (213) 667‑4784
• 4867 W Sunset BlvdLos Angeles, CA 90027 (323) 783‑4011

Group practices

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

• Southern California Permanente Medical Group11,293 clinicians in the group

Specialties

• Internal Medicineprimary
• Cardiovascular Disease (Cardiology)also

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Harbor City

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

• Tanima Shaheed, MD
• Kevin P. Pusavat, MD
• Eugene Y. Kwon, MD
• Tammy Wan, MD
• Timothy J. Stocker, MD
• Aminu M. Birhan, MD
• Samay K. Patel, MD
• Shaan Anand, MD

All internal medicine doctors in Harbor City →

Other clinicians in Southern California Permanente Medical Group

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

• Neda G. Elijah, OD
• Marianne Bergheim, MD
• Tanima Shaheed, MD
• Jennifer S. Chou-Kim, MD
• Jad Harb, MD
• Naomi K. Lin, 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