Winston C. Vaughan, MD

Medicare activity in 2024

Official CMS public-use data for Winston C. Vaughan, 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. Diagnostic exam of nasal passages using an endoscope (31231)1,481 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)1,140 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)344 services
4. Ct scan of face without contrast (70486)86 services
5. Biopsy or removal of nasal polyp or tissue using an endoscope (31237)73 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 pressure63%
• Arthritis47%
• Asthma35%
• Ischemic heart disease25%
• Osteoporosis24%

Hospitals where Winston C. Vaughan works

Medicare's Facility Affiliation Data lists Winston C. Vaughan 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.

• El Camino HealthMountain View, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050308
• Stanford Health CareStanford, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050441

Practice locations

Addresses where Winston C. Vaughan is enrolled with Medicare (CMS data updated October 2, 2026).

• 1505 Saint Alphonsus WayAlamo, CA 94507 (925) 932‑6330
• 15899 Los Gatos Almaden Rd, Suite 12Los Gatos, CA 95032 (408) 358‑2663
• 2637 Shadelands DrWalnut Creek, CA 94598
• 3351 El Camino Real, Suite 200Atherton, CA 94027 (650) 399‑4630
• 365 Lennon LnWalnut Creek, CA 94598

Group practices

Medicare enrollment lists Winston C. Vaughan as a member of this group (CMS data updated October 2, 2026).

• Bass Medical Group291 clinicians in the group

Specialties

• Otolaryngologyprimary

Find other Otolaryngology doctors in California →

Other ENT doctors in Alamo

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

• Joshua K. Au, MD
• Christina L. Corey, MD
• Lloyd C. Ford, MD
• Randall K. Wenokur, MD
• Kyle R. Hannabass, MD
• Benjamin Loos, MD
• Michael Murray, MD
• Bassam Said, MD

All ENT doctors in Alamo →

Other clinicians in Bass Medical Group

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

• Luman H. Hughes Iii, MD
• Victoria Y. Yung, MD
• Christian Swinney, MD
• Kenneth C. Hsiao, MD
• Abhay M. Vaidya, MD
• David J. Jupina, 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