Alden Bahr, MD

Medicare activity in 2024

Official CMS public-use data for Alden Bahr, 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. 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)213 services
2. Established patient problem focused exam of visual system (92012)190 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)103 services
4. Established patient complete exam of visual system (92014)99 services
5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)91 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 pressure69%
• Arthritis35%
• Diabetes26%
• Chronic kidney disease23%
• Ischemic heart disease18%

Hospitals where Alden Bahr works

Medicare's Facility Affiliation Data lists Alden Bahr 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.

• Peninsula Medical CenterBurlingame, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050007

Practice locations

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

• 1720 El Camino Real, Suite 225Burlingame, CA 94010 (650) 697‑3200
• 901 Campus Dr, Suite 205Daly City, CA 94015 (650) 756‑2020

Group practices

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

• Peninsula Ophthalmology Group Inc8 clinicians in the group

Specialties

• General Practiceprimary
• Ophthalmologyalso

Find other General Practice doctors in California →

Other general practitioners in California

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

• Jean M. Allen, DO
• John Miller, MD
• Esteban S. Poni, MD
• Bruce Torkan, MD
• Chia Soo, MD
• Amishi S. Desai, MD
• Violeta M. Navasardian, MD
• Mike M. Rostami, MD

All general practitioners in California →

Other clinicians in Peninsula Ophthalmology Group Inc

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

• Edward Y. Koo, MD
• Cristina Partida, OD
• Angela Yang, OD
• Matthew S. Zore, MD
• Kenneth Chern, MD
• Xiaoyan Y. Zhang, 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