Uldine L. Castel, MD

Medicare activity in 2024

Official CMS public-use data for Uldine L. Castel, 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)659 services
2. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)139 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)112 services
4. Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional (99211)85 services
5. Administration of influenza virus vaccine (G0008)43 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 pressure65%
• Arthritis45%
• Depression23%
• Osteoporosis22%
• Ischemic heart disease21%

Hospitals where Uldine L. Castel works

Medicare's Facility Affiliation Data lists Uldine L. Castel 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.

• Community Memorial Hospital - VenturaVentura, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050394

Practice locations

Addresses where Uldine L. Castel is enrolled with Medicare (CMS data updated October 2, 2026).

• 2240 E Gonzales Rd, Suite 160Oxnard, CA 93036 (805) 981‑5131
• 2500 S C StOxnard, CA 93033 (805) 981‑5221
• 300 Hillmont AveVentura, CA 93003
• 3555 Loma Vista Rd, Suite 110Ventura, CA 93003 (805) 653‑0303

Group practices

Medicare enrollment lists Uldine L. Castel as a member of these groups (CMS data updated October 2, 2026).

• County of Ventura344 clinicians in the group
• Primary Medical Group of Ventura County Inc41 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in California →

Other family doctors in Oxnard

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

• Anna Mikhailovsky, MD
• Marta Sarransingh, MD
• John R. Ford, MD
• Nabeel A. Saeed, MD
• Rosemary Flores, MD
• Helen E. Ashton, MD
• Kevin D. Nguyen, MD
• Timothy J. Horita, MD

All family doctors in Oxnard →

Other clinicians in County of Ventura

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

• Catherine A. Sendaydiego, MD
• Afshin Ahoubim, MD
• Nathalie Herrera, MD
• Sofia S. Pamplona, MD
• Eric A. Marks, MD
• Charlotte Healy, 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