Justin Mahaney, MD

Medicare activity in 2024

Official CMS public-use data for Justin Mahaney, 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 35 minutes (99232)19 services
2. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)14 services
3. Other procedure on nervous system (64999)14 services
4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)11 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 cholesterol66%
• Arthritis61%
• Chronic kidney disease35%
• Diabetes34%
• Depression34%

Hospitals where Justin Mahaney works

Medicare's Facility Affiliation Data lists Justin Mahaney 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 - San DiegoSan Diego, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050515

Practice locations

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

• 4647 Zion AveSan Diego, CA 92120 (619) 528‑5000

Group practices

Medicare enrollment lists Justin Mahaney as a member of this group (CMS data updated October 2, 2026).

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

Specialties

• Anesthesiologyprimary

Find other Anesthesiology doctors in California →

Other anesthesiologists in San Diego

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

• Caroline C. Dennis, MD
• Matthew J. Wall, MD
• Gloria W. Hwang, MD
• Philip D. Cheung, MD
• Zachary M. Gordon, MD
• Erin I. Martin, MD
• Swapnil Khoche, MD
• Eileen R. Quintela, MD

All anesthesiologists in San Diego →

Other clinicians in Southern California Permanente Medical Group

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

• Nhi N. Castano, MD
• To-Tam N. Le, MD
• Sriram S. Rangarajan, MD
• James A. Min, DO
• Sarah J. Reynolds, PT
• Pearlie Lim, 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