Dorothy A. Deguzman, MD

Medicare activity in 2024

Official CMS public-use data for Dorothy A. Deguzman, 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)30 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)28 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 pressure72%
• High cholesterol59%
• Arthritis52%
• Diabetes41%

Hospitals where Dorothy A. Deguzman works

Medicare's Facility Affiliation Data lists Dorothy A. Deguzman 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.

• Ventura County Medical CenterVentura, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050159

Practice locations

Addresses where Dorothy A. Deguzman is enrolled with Medicare (CMS data updated October 2, 2026).

• 300 Hillmont AveVentura, CA 93003 (805) 654‑3306

Group practices

Medicare enrollment lists Dorothy A. Deguzman as a member of this group (CMS data updated October 2, 2026).

• County of Ventura344 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in California →

Other family doctors in Ventura

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

• Danielle Guyer, MD
• Eric T. Birdwell, MD
• Amy E. Jones, MD
• Miguel Cervantes, MD
• Charles Adams, MD
• Dean W. Smith, MD
• Veronica W. Butler, MD
• Samuel K. Phang, MD

All family doctors in Ventura →

Other clinicians in County of Ventura

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

• Danielle Guyer, MD
• Thuy Trang J. Nguyen, MD
• Amy E. Jones, MD
• Lorenz Choi, DO
• Seema Kazemi Raheel, MD
• Eveline Garbin

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