Our Services

Internal Medicine

Our board-certified internal medicine physicians specialize in maintaining and improving the health of adults. Offering expert care for a wide range of health concerns, our clinical excellence extends from disease prevention and wellness to the care and management of chronic conditions, such as heart disease, diabetes and arthritis.

We are committed to providing the finest evidence-based medicine, which ensures our patients receive the latest and most tested treatment options. Equally important, we take pride in caring for our patients for life—meeting each health need with comprehensive and compassionate care.

We provide expert primary care for adults, including:

  • Wellness and disease prevention
  • Health screenings, including cancer and cardiovascular screenings
  • Women's health, including comprehensive well woman exams
  • Illnesses, from common to complex
  • Care and management of common and chronic conditions, including: diabetes, heart disease, high blood pressure and asthma
  • Treatment of minor injuries
  • Geriatric care

View Our Locations

Internal Medicine

Meet Our Doctors

Vincent A. Covelli, DO (760) 381-7717
Infectious Disease

Mon - Fri: 8 a.m. - 5 p.m.

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Office :
St. Mary High Desert Medical Group
12550 Hesperia Rd., Suite 100
Victorville, CA 92395
Ziad El-Hajjaoui, MD (760) 241-6666
Internal Medicine (Board Certified)

Mon - Fri 8 a.m. to 5 p.m.

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Office :
St. Mary High Desert Medical Group
17095 Main St.
Hesperia, CA 92345
Zoheir El-Hajjaoui, MD (760) 241-6666
Internal Medicine

Mon 7 a.m. - 4 p.m., Tue 8 a.m. - 5 p.m., Wed 8 a.m. - 5 p.m., Thu 7 a.m. - 4 p.m., Fri 7 a.m. - 12 p.m.

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Office :
St. Mary High Desert Medical Group
12550 Hesperia Rd.
Suite 100
Victorville, CA 92392