
Pay Bill
You pick the way to pay.
Option 1. Pay on the OSS patient portal.
You can see the outstanding balance on the patient portal and pay that amount. You can also view your bills.
All MRI and CT exams performed starting May 1, 2025 must be submitted through this external websit e (click here).
Option 2. You get OSS bill in the mail and then you pay on the OSS Billing Site.
You look up your outstanding balance and then follow the directions on the paper bill.
Frequently Asked Questions
Who should I contact if I have a question about my bill?
Please contact the OSS Billing Team, specifically the Patient Accounts Coordinator at (818) 485-4113.
What should I do if I am having difficulty paying online or on time?
You should call the OSS Billing Team, specifically the Patient Accounts Coordinator at (818) 485-4113.
Who do I call if I need to pay my deposit for an upcoming surgery or procedure?
You should call the doctor's surgery coordinator to pay the deposit by credit card. Call OSS and then use you can use the coordinator's extension for faster service.
I need a copy of all the billing records for me or for a patient at OSS. Who can help with that?
You should contact Healthmark and you must make the request online. Click here. The Billing Department can only give you a copy of your most recent bill.
I don't need help with a bill necessarily, but need help with my authorization so I can get a specific health service at OSS. Who at OSS should I ask for?
- If you are seeking status on an HMO authorization for an orthopaedic, pain management or imaging appointment + you are a returning patient, then you can ask for Alma. The process to obtain authorization typically takes 2 weeks because OSS needs your HMO medical group to authorization the requested service.
- If you are new to OSS, then OSS WILL NOT be able to get you authorization. You must contact your referring doctor.
- If you are seeking status on PPO insurance authorization for an MRI, CT Scan or Bone Density Scan, ask for Olivia. This typically takes 1 week.
- If you are seeking insurance authorization for an upcoming surgery or procedure, contact the doctor's surgery or procedure coordinator.
- If you are asking for insurance verification for therapy services, ask for Susan.
- If you are asking for insurance authorization for therapy services, ask for Blanca.

Read What Our Patients Say
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“I was suffering from an excruciating lower back pain that prevented me from doing any movement, except for standing and walking. After getting an MRI I was told by my Orthopedic Surgeon I had a 7mm herniated disc on my L5, Physical Therapy would not help, and my only options were to either get an epidural injection for a temporary pain relive or another ... ”- Anashe M.
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“The care my 11-year old received from Omar Duenes at OSS was outstanding….as soon as Omar D. saw them (Xrays of wrist), he was able to determine that she broke her wrist. He was extremely professional, knowledgeable, and helpful. ”- DeAnna
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“So back in April I was involved in a nasty bike accident that left me with a severely broken arm. 10 days in the hospital and 4 surgeries later I'm released to start the slow process of recovery. By the time my last surgery had finished and healed, could barely move my wrist, turn my arm, open my hand, or use my fingers. I was told by my surgeon that I ... ”- Eric R.
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“Dr. Feldman has treated me on and off for over ten years. ... I love that OSS has everything he needs to diagnose in-house which makes it very easy. ”- Stacey L.
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“I think Orthopedic Surgery Specialists group is the best group for orthopedic surgery. Over the years, before OSS, I had two knee surgeries, a shoulder surgery, and a foot surgery with different doctors and at different facilities. So I have had a lot of orthopedic experience. I discovered OSS this summer after a MRI revealed I had a broken hip. Dr. ... ”- Janet L.
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“Kudos to Dr. Abby Merrin and PT Alexandria Tayo. They helped me overcome my hip issue and I am now able to walk and run pain free. They were personable, kind and compassionate. Dr. Merrin took the time to explain the benefits of each exercise and how It would help diminish my symptoms. I would recommend OSS to anyone that needs physical therapy. ”- Jo-Ann L.