Kevin Xunan, DO

Medicare activity in 2024

Official CMS public-use data for Kevin Xunan, 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)491 services
2. 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)209 services
3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)146 services
4. Injection of drug or substance under skin or into muscle (96372)65 services
5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)63 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%
• Arthritis38%
• Chronic kidney disease32%
• Diabetes31%
• Depression24%

Hospitals where Kevin Xunan works

Medicare's Facility Affiliation Data lists Kevin Xunan 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.

• NorthBay Medical CenterFairfield, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050367

Practice locations

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

• 101 Main StWinters, CA 95694 (707) 646‑5500
• 2470 Hilborn Rd, Suite 100and200Fairfield, CA 94534 (707) 646‑5500
• 421 Nut Tree RdVacaville, CA 95687 (707) 624‑7500

Group practices

Medicare enrollment lists Kevin Xunan as a member of these groups (CMS data updated October 2, 2026).

• NorthBay Physicians Surgery Center, LLC324 clinicians in the group
• NorthBay Health Medical Foundation213 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in California →

Other family doctors in Winters

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

• Irena M. Grauzinis, DO
• Douglas J. Freeman, MD
• Gian L. Pinot, MD
• Alina Hongsakaphadana, MD
• Virginia A. Leone, MD
• Rajdeep S. Kular, MD
• Angela Brennan, DO
• Renee Miranda, MD

All family doctors in Winters →

Other clinicians in NorthBay Physicians Surgery Center, LLC

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

• Allan S. Au, MD
• Rebecca L. Parker, NP
• Syed A. Ali, MD
• Douglas W. Hinton, PT
• William R. Fulton, DO
• Marlene H. Freeman, 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