Donald A. St Claire Jr., MD

Medicare activity in 2024

Official CMS public-use data for Donald A. St Claire Jr., 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. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)1,183 services
2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)755 services
3. 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)729 services
4. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)561 services
5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)508 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%
• Ischemic heart disease51%
• Atrial fibrillation50%
• Arthritis43%
• Heart failure24%

Hospitals where Donald A. St Claire Jr. works

Medicare's Facility Affiliation Data lists Donald A. St Claire Jr. 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.

• Memorial Hospital Los BanosLos Banos, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050528
• Peninsula Medical CenterBurlingame, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050007
• Sequoia HospitalRedwood City, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050197
• Stanford Health CareStanford, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050441

Practice locations

Addresses where Donald A. St Claire Jr. is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 10; the Medicare profile lists all.

• 123 S San Mateo DrSan Mateo, CA 94401 (650) 343‑4200
• 1501 Trousdale DrBurlingame, CA 94010 (650) 696‑5400
• 1501 Trousdale Dr, Suite 215Burlingame, CA 94010 (415) 600‑6400
• 170 Alameda De Las PulgasRedwood City, CA 94062 (650) 369‑5811
• 1950 University Ave, Suite 160East Palo Alto, CA 94303 (650) 317‑8100

Group practices

Medicare enrollment lists Donald A. St Claire Jr. as a member of this group (CMS data updated October 2, 2026).

• Sutter Bay Medical Foundation3,829 clinicians in the group

Specialties

• Interventional Cardiologyprimary
• Cardiovascular Disease (Cardiology)also

Find other Interventional Cardiology doctors in California →

Other interventional cardiologists in San Mateo

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

• Erik T. Price, MD
• Steve S. Lee, MD
• Tomoya Hinohara, MD
• Bruce Benedick, MD
• Chidambaram Rammohan, MD
• David A. Kurzrock, MD

All interventional cardiologists in San Mateo →

Other clinicians in Sutter Bay Medical Foundation

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

• Chanjuan Zhong, MD
• Kimberly Dalal, MD
• Timothy P. Jannisse, PT
• Elyas Parsa, DO
• Umesh H. Gheewala, MD
• Derek Mori

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