Barry S. Landfield, MD

Medicare activity in 2024

Official CMS public-use data for Barry S. Landfield, 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. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)425 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)383 services
3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)108 services
4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)37 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%
• Diabetes38%
• Arthritis37%
• Anxiety22%
• Ischemic heart disease19%

Hospitals where Barry S. Landfield works

Medicare's Facility Affiliation Data lists Barry S. Landfield 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.

• Marinhealth Medical CenterGreenbrae, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050360
• Novato Community HospitalNovato, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050131

Practice locations

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

• 900 S Eliseo Dr, Suite 202Greenbrae, CA 94904 (415) 461‑3500

Specialties

• General Practiceprimary
• Family Practicealso

Find other General Practice doctors in California →

Other general practitioners in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

• Martin L. Rossman, MD
• John D. Andrew, MD
• Yin-Zu Wang, MD
• Tuan D. Le, MD
• Bradley D. Tourtlotte, MD
• Nandan Bhatt, MD
• Steven A. Tenenbaum, MD
• Julio N. Vasquez, MD

All general practitioners in California →

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