Juana Gonzalez-Aguirre, MD

Medicare activity in 2024

Official CMS public-use data for Juana Gonzalez-Aguirre, 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)655 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)339 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)201 services
4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)158 services
5. Administration of influenza virus vaccine (G0008)55 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 pressure62%
• Arthritis44%
• Osteoporosis25%
• Anxiety21%
• Diabetes20%

Hospitals where Juana Gonzalez-Aguirre works

Medicare's Facility Affiliation Data lists Juana Gonzalez-Aguirre 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.

• Alta Bates Summit Medical CenterOakland, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050043
• Alta Bates Summit Medical Center - Alta Bates CampBerkeley, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050305
• John Muir Medical Center - Concord CampusConcord, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050496
• John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050180

Practice locations

Addresses where Juana Gonzalez-Aguirre is enrolled with Medicare (CMS data updated October 2, 2026).

• 2700 Grant St, Suite 200Concord, CA 94520 (925) 674‑0500

Group practices

Medicare enrollment lists Juana Gonzalez-Aguirre as a member of this group (CMS data updated October 2, 2026).

• John Muir Physician Network494 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Concord

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

• Delia A. Salgado Lejano, MD
• Melanie H. Lee, MD
• Syed Naqvi, MD
• Kamaldip S. Ghei, MD
• Ahmed Hasson, MD
• Timothy J. Wall, MD
• Vivekanand Jain, MD
• Jin M. Packard, MD

All internal medicine doctors in Concord →

Other clinicians in John Muir Physician Network

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

• Raul Romea, MD
• Hazel Mae A. Abraham, MD
• Rachelle T. Hanft, MD
• Tiffany L. McClure, MD
• Kristofer Wills, DO
• Jonathan Shaked, DO

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