Aneema A. Van Groenou, MD

Medicare activity in 2024

Official CMS public-use data for Aneema A. Van Groenou, 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)111 services
2. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)87 services
3. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)30 services
4. Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) (87880)23 services
5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)23 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 pressure67%
• High cholesterol65%
• Arthritis42%
• Diabetes32%
• Anxiety24%
• Chronic kidney disease20%

Practice locations

Addresses where Aneema A. Van Groenou is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

• 12 Camino EncinasOrinda, CA 94563 (510) 204‑8180
• 20101 Lake Chabot RdCastro Valley, CA 94546 (510) 886‑3400
• 20103 Lake Chabot RdCastro Valley, CA 94546 (510) 727‑3256
• 2500 Milvia StBerkeley, CA 94704 (510) 204‑5600
• 3200 Kearney StFremont, CA 94538 (510) 490‑1222

Group practices

Medicare enrollment lists Aneema A. Van Groenou as a member of this group (CMS data updated October 2, 2026).

• Sutter Bay Medical Foundation3,829 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Orinda

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

• Grace Tarng, MD
• Joel Chiu, MD
• Patricio M. Chavez, MD
• Pamela S. Laesch, MD
• Altaf H. Ansari, MD
• Lindsay B. Walker, MD
• Ami Yamamoto, MD
• Joel S. Kahn, MD

All emergency medicine doctors in Orinda →

Other clinicians in Sutter Bay Medical Foundation

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

• Hae Jin Lim, NP
• Runi Chattopadhyay, MD
• Sarah A. Brill, DO
• Kirtikumar Desai, MD
• Paul C. Tang, MD
• Felix A. Chen, 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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
4. Medicare Care Compare — official Medicare tool to look up clinicians