Donald K. Westbie, MD

Medicare activity in 2024

Official CMS public-use data for Donald K. Westbie, 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)715 services
2. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)113 services
3. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)33 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%
• Diabetes54%
• Arthritis43%
• Anxiety23%
• Chronic kidney disease23%

Hospitals where Donald K. Westbie works

Medicare's Facility Affiliation Data lists Donald K. Westbie 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.

• Adventist Health SonoraSonora, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 050335
• Mark Twain Medical CenterSan Andreas, CA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 051332

Practice locations

Addresses where Donald K. Westbie is enrolled with Medicare (CMS data updated October 2, 2026).

• 193 Fairview LnSonora, CA 95370 (209) 536‑5100

Group practices

Medicare enrollment lists Donald K. Westbie as a member of this group (CMS data updated October 2, 2026).

• Sonora Community Hospital133 clinicians in the group

Specialties

• Internal Medicineprimary
• Endocrinologyalso

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Sonora

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

• Manan A. Jhaveri, MD
• Robert Reina, MD
• Reiker J. Schultz, MD
• Kyi Kyi T. Win, MD
• Juliene Gentry, MD
• Jason R. Jeffery, MD
• Robert M. Matz, MD
• Christina Tsao, MD

All internal medicine doctors in Sonora →

Other clinicians in Sonora Community Hospital

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

• Mandeep Singh, MD
• Steven Shield, MD
• Keren Akakpo, PA
• Mark R. Gordon, MD
• Paramvir Singh, MD
• John P. Nelligan, 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