- Providence Saint Johns Medical Foundation, 12555 W Jefferson Blvd, Ste 301, Los Angeles, CA 90066, (424) 443-5555
What Patients Say
Patients describe Dr Niles as attentive and respectful, and several say he listens carefully and makes them feel at ease. Many also praise the office environment and staff. One patient notes improvement in the medical assistant over time.
Listens carefully
60% of reviews
Several patients say he listens and makes them feel at ease.
Clean, welcoming office
40% of reviews
Some patients praise the office environment and describe it as immaculate.
Source: sjpp.org · Most recent review August 2026
About
Dr. Gabriel Stephan Niles is a family medicine doctor in Los Angeles, California, board certified in Family Medicine. He received his medical degree from USC Keck School of Medicine and completed his residency at Methodist Hospital of Sacramento.
Dr. Niles treats a wide range of conditions including allergies, anxiety, asthma, back pain, heart disease, hypertension and sleep disorders, along with chronic conditions such as diabetes, chronic obstructive pulmonary disease and dementia. His preventive services include routine adult exams, cancer screenings, adult vaccines and blood tests to evaluate cholesterol, hormone levels and metabolic health. He practices at Providence Saint Johns Medical Foundation, Associated Family Physicians and The Doctors of Saint John's, and speaks English and Spanish. Dr. Niles takes a holistic approach to medicine, integrating conventional therapies with natural and alternative methods, and emphasizes the importance of stress management, diet, exercise, sleep and healthy relationships in optimizing health.
Specialized Treatments
- Adult Screening Blood Tests (e.g. Metabolic Panel, Lipid Panel, Thyroid Tests)
- Blood/Immune System Disorders Screening
- Colon Cancer Screening
- Heart Disease Screening
- Lipid Disorder (e.g. Hyperlipidemia) Screening
- Routine Adult Exam
- Adult Vaccines (e.g. Tdap, Shingles, Pneumococcus, Flu)
- Breast Cancer Screening (e.g. Breast Exam, Mammogram)
- Diabetes Screening
- Hormone Disorders (e.g. Diabetes, Thyroid Disorders) Screening
- Prostate Cancer Screening (e.g. PSA Level)
Insurances Accepted
Most common in California
Others
Insurance coverage can vary by location and plan. Confirm directly with the provider's office when you schedule.