Alexandra Lajoie, MD

Medicare activity in 2024

Official CMS public-use data for Alexandra Lajoie, 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, inclisiran, 1 mg (J1306)11,928 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)421 services
3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)302 services
4. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)292 services
5. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)289 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 pressure73%
• Ischemic heart disease63%
• Arthritis53%
• Atrial fibrillation28%
• Osteoporosis27%

Hospitals where Alexandra Lajoie works

Medicare's Facility Affiliation Data lists Alexandra Lajoie 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 Alexandra Lajoie is enrolled with Medicare (CMS data updated October 2, 2026).

• 2001 Santa Monica Blvd, Suite 280wSanta Monica, CA 90404 (310) 829‑7678
• 2001 Santa Monica Blvd, Suite 360wSanta Monica, CA 90404 (310) 829‑7678

Group practices

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

• Cedars-Sinai Medical Care Foundation1,692 clinicians in the group

Specialties

• Cardiovascular Disease (Cardiology)primary
• Internal Medicinealso

Find other Cardiovascular Disease (Cardiology) doctors in California →

Other cardiologists in Santa Monica

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

• Daniel P. O'Brien, MD
• Ravi H. Dave, MD
• Sarina A. Vander Zee, MD
• Daniel Wohlgelernter, MD
• Christiane A. Schaeffler, MD
• Celso L. Diaz, MD
• Ramtin Anousheh, MD
• Noel G. Boyle, MD

All cardiologists in Santa Monica →

Other clinicians in Cedars-Sinai Medical Care Foundation

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

• Melanie Friedlander, MD
• Enoch Arhinful, MD
• Christine Mueting, PA
• Christopher M. Kidd, MD
• Jennifer G. Poole, DO
• Aron Gould-Simon, 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