Donald P. Carter, MD

Medicare activity in 2024

Official CMS public-use data for Donald P. Carter, 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)1,517 services
2. Exam of ear using a microscope (92504)1,027 services
3. Test to assess middle ear function (92567)444 services
4. Comprehensive hearing and speech recognition test (92557)259 services
5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)145 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%
• Arthritis44%
• Diabetes36%
• Ischemic heart disease30%
• Chronic kidney disease23%

Hospitals where Donald P. Carter works

Medicare's Facility Affiliation Data lists Donald P. Carter 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.

• Mercy Medical CenterMerced, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050444

Practice locations

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

• 315 Mercy Ave, Suite 400Merced, CA 95340 (209) 564‑3700
• 3351 N M St, Suite 205Merced, CA 95348 (209) 724‑0501

Group practices

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

• Dignity Health Medical Foundation1,184 clinicians in the group

Specialties

• Otolaryngologyprimary

Find other Otolaryngology doctors in California →

Other ENT doctors in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

• Mark S. Spitzer, DO
• Mohamed Diop, MD
• Rowley S. Busino, MD
• Harrison W. Lin, MD
• Mia E. Miller, MD
• Omid B. Mehdizadeh, MD
• Jahangir Sharifi, MD
• Clifford Chew, MD

All ENT doctors in California →

Other clinicians in Dignity Health Medical Foundation

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

• Kalen P. Bonnett-Phillips, PA
• Henry C. Hsiao, MD
• Amrita Arora, MD
• Beth Wheeler, PA
• Collene W. Camill, PA
• James Deen, 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