Ramon Ryan Garcia, MD

Medicare activity in 2024

Official CMS public-use data for Ramon Ryan Garcia, 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 low level od decision making, if using time, 20 minutes or more (99213)645 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)178 services
3. Urinalysis, manual test (81002)94 services
4. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)89 services
5. Injection, ketorolac tromethamine, per 15 mg (J1885)56 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 cholesterol72%
• High blood pressure58%
• Arthritis42%
• Osteoporosis24%
• Depression22%
• Anxiety22%

Hospitals where Ramon Ryan Garcia works

Medicare's Facility Affiliation Data lists Ramon Ryan Garcia 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.

• 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 Ramon Ryan Garcia is enrolled with Medicare (CMS data updated October 2, 2026).

• 1450 Treat Blvd, Suite 160Walnut Creek, CA 94597 (925) 296‑9000
• 2700 Grant St, Suite 110Concord, CA 94520 (925) 674‑2500

Group practices

Medicare enrollment lists Ramon Ryan Garcia as a member of this group (CMS data updated October 2, 2026).

• John Muir Physician Network494 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in California →

Other family doctors in Walnut Creek

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

• Kishore V. Nath, MD
• Taejoon Ahn, MD
• Deborah Greer, MD
• Libre E. Johnson, MD
• Gurbind Jussa S. Sidhu, MD
• Alan L. Scott, MD
• Ann B. Lockhart, MD
• Dennis Wong, MD

All family doctors in Walnut Creek →

Other clinicians in John Muir Physician Network

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

• Yajuan Leonard, NP
• Shamroze Khan, DO
• Cinthia V. Rojas, NP
• Mark R. Avon, MD
• Michael G. Loudin, MD
• Deborah Greer, 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