Testimonials & Reviews

James A. Nassiri, MD, MA

Pain Management Specialist & Anesthesiologist located in Beverly Hills, CA & Rancho Cucamonga, CA

24 total reviews

Dr. James A. Nassiri always appreciates feedback from his valued patients. To date, we’re thrilled to have collected 24 reviews with an average rating of 4.96 out of 5 stars. Please read what others are saying about Dr. James Nassiri below, and as always, we would love to collect your feedback.

CAndesha W.
Submitted 10/10/19
Great staff! Patient and attentive Doctor.
Lauren W.
Submitted 10/09/19
Dr. Massino is extremely knowledgeable but takes the time to get to know you as a patient, unlike some doctors who only spend a few minutes with patients. Would highly recommend and will be seeing him again.
Chad F.
Submitted 09/19/19
Everyone in this office from the front to the back are amazing!
Katayoun R.
Submitted 04/18/17
I work in the medical field, and I can honestly say that Dr. Nassiri is amazing. I booked an appointment easily using the online system, got a confirmation within minutes, and experienced one of a kind care and attention from his staff, from start to finish. Dr. Nassiri is kind, attentive, and really understood my issue - being that is was somewhat unusual and complicated. We came up with a great treatment plan, and I'm looking forward to my upcoming visits. To add to this, I had a minimally urgent situation after hours, and his answering service assistant was so caring and considerate, and the Dr was also available within minutes of my call - I've never experienced this with any other practitioner. Truly a great practice, doctor, and staff.


At Westside Pain Specialists, our goal is to provide every patient the opportunity to obtain the pain treatment they need. We are dedicated to partnering with you and your insurance. If you have any questions about the insurance policies we accept, please call our office to find out how we can partner with you and begin your healing process.

Blue Cross Blue Shield
Blue Cross Blue Shield of California PPO
United Healthcare
Well Point