The Oncology Institute
Health & Medical · Oncology

The Oncology Institute

11550 Indian Hills Rd, Suite 360, Mission Hills, California, 91345

Google Maps Updated: 13 May 2026
Authenticity Score: 79/100
About

The Oncology Institute is highly valued for its skilled and compassionate doctors, who are often credited with saving lives. Patients feel well-supported by the medical team. However, there are significant and recurring complaints about the administrative staff, particularly regarding phone communication, scheduling, and billing. It is a place where the medical care is excellent, but the administrative experience can be very stressful.

Our Review Process
20
Most Relevant
10
Newest
20
Highest
18
Lowest

We analyze 68 Google Maps public reviews (Most relevant, Newest, Highest rating, Lowest rating) from every angle to find the real story so you know exactly what to expect. We use Artificial Intelligence to analyze these reviews and filter out spam to highlight only authentic feedback.

Performance Scores
Medical Expertise 94/100
Admin Efficiency 45/100
Pro Tip

If you are having trouble reaching the office, try visiting in person to resolve urgent scheduling or billing issues.

Oncology
Hematology
Pros & Cons

✓ What Works Well

  • Skilled and compassionate oncologists
  • Excellent medical outcomes
  • Supportive medical team

✗ Areas to Improve

  • Poor administrative communication
  • Difficulty reaching staff by phone
  • Billing and scheduling errors
Frequently Asked Questions
  • How do I schedule an appointment?
  • Why is it so hard to reach someone?
User Feedback

Dr. Sarkissian is amazing.

The phone system is a nightmare.

I trust my doctor completely.

Location Details
Street: 11550 Indian Hills Rd, Suite 360
Neighborhood: Mission Hills
State: California
Postcode: 91345
Country: United States
Location
11550 Indian Hills Rd Suite 360, Mission Hills, CA 91345
Quick Info
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