Jon M. Onosaki, PAC
Yorba Linda, CA 92886
- Mission Heritage Medical Group and Affiliated Physicians
- St. Joseph Heritage Medical Group and Affiliated Physicians
- St. Jude Heritage Medical Group and Affiliated Physicians
St. Jude Heritage Yorba Linda - Orthopedic Surgery
4300 Rose Drive, Suite G, Yorba Linda, CA 92886
Insurances Accepted
This information provides an overview of accepted insurance plan types. Coverage may vary by specific plan. Please verify your with your insurance provider before visiting us for care.
- TriWest - Tricare
- United HealthCare PPO
- Providence Health Plan - Medicare Advantage
- Blue Shield of CA HMO - Trio
- Health Net - Medicare Advantage
- Anthem Blue Cross PPO
- SCAN Medicare Advantage
- Vivity by Anthem Blue Cross
- Aetna Medicare Advantage HMO
- Blue Shield of CA PPO
- Health Net HMO
- Anthem Blue Cross Medicare PPO
- Multiplan PPO
- Anthem Blue Cross Medicare Advantage
- HealthSmart (Interplan) PPO
- Cigna PPO
- Health Net PPO
- Aetna Medicare Advantage PPO
- Blue Shield of CA Medicare Advantage
- Blue Shield of CA HMO
- Coventry/First Health PPO
- Aetna HMO
- Aetna PPO
- Cigna HMO
- Anthem Blue Cross HMO
- US Family Health Plan - TriCare
- United Healthcare HMO
- No results found
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View More Providers
- National Commission on Certification of Physician Assistants, Physician Assistant
- National Commission on Certification of Physician Assistants, Orthopaedic Surgery
Community Reviews
At Providence, we're dedicated to providing you quality, personalized health care. We are constantly striving to optimize your experience.
As part of ensuring you have a positive experience with Providence, our online provider directory includes ratings and patient comments for select providers. More about our survey.
Great PA
Providence Patient
My provider is excellent, well versed, professional and polite. A great person
Providence Patient
I am overly satisfied with the professionalism, care and attention I received from Dr. Onoski on [date].He spent unrushed quality time explaining the procedure, any concerns I may have had and relaxed any anxiety I had. He engaged me in conversation as he administered the injections and before I knew it was over. I am very satisfied with my overall treatment and experience.
Providence Patient
Jon has always provided excellent care and guidance during my visits. Takes the time to answer all of my questions and concerns
Providence Patient
Great PA. Very understanding and helpful. Gave me important information about the steroid shot I was being given. Cautioned me about activity I should avoid. Very impressed with his care
Providence Patient
Very helpful very professional and I love this doctor Yin and Jon
Providence Patient
Very good
Providence Patient
I went to see Jon for a 10 day post-op checkup and he was able to answer all the questions I had. He even showed me the arthroscopy pictures of my knee. He said things were looking good. I just have to be patient! Tough to be patient sometimes, especially since I am athletic. I'm already itching to go do things but I have to slow down and really let my knee heal before doing things I love again.
Providence Patient
I appreciated Jon's thoughtful answers to my post surgery questions. And I especially am grateful for the prescription that helped me sleep better.
Providence Patient
It's always enjoyable when I visitJon Onasaki for a check up. He is very caring and knowledgable. He is a great PA ("sidekick") to Dr. Bob Yin.
Providence Patient
Good
Providence Patient
My care provider for this visit was extremely helpful and informative. I would highly recommend him.
Providence Patient
Dr Onosaki always does a great job
Providence Patient
Jon Onosaki is is an outstanding medical professional. He is responsive when I have issues outside of normal appointment times. When I am in his office, I feel like he genuinely cares about my health issues and is empathetic. His questions are poignant to best understand my health issues.
Providence Patient
Good
Providence Patient
Jon spent a LOT of time with me, answering detailed questions, and making sure I understood the answers he provided. He went above and beyond and made me feel confident I was making the best decision for my care. So thankful!!
Providence Patient
Jon is a very caring provider. He spends lot of time listening to my concerns and providers clear care plan. I never felt rushed and I was always seen on time. Jon demonstrated all the core values of Providence demonstrating Justice, Excellence, Empathy, Dignity, and Service. I will highly recommend him to all my friends and family in need for his services.
Providence Patient
I went for a post rotator surgery follow up. He was very nice and patient
Providence Patient
Thank you for caring care.
Providence Patient
Have used this office previously. Obviously good as I went back for more surgery.
Providence Patient
Jon is very professional and very caring. I appreciate his help very much.
Providence Patient
Jon answered questions and addressed new knee concern right away.
Providence Patient
Jon was very good at explaining what to expect during the healing period from left hip replacement surgery.
Providence Patient
Jon has always been exceptional at going over my results from surgery and my progression.
Providence Patient
Excellent care!
Providence Patient
Well run practice.
Providence Patient
This provider and this clinic have been very supportive and very professional. I am sincerely grateful for the experience that is always provided to me and that is reassuring.
Providence Patient
Excellent care and service!!!
Providence Patient
The office staff is very friendly and professional. The wait time is always minimal. The medical assistant puts me at ease during the check in. Jon, the PA, takes his time with explaining things and answering questions. I have recommended several others to this practice.
Providence Patient
Creates a comfortable environment. Receptive and respectful to all questions.
Providence Patient
I have a very good relationship with the provider.
Providence Patient
I have always had excellent care from all the doctors that I have seen at providence
Providence Patient
Very thorough explaining my situation with a fractured hip
Providence Patient
Jon was very aware that he had treated me several years with my knee issues. He calmly and thoroughly explained the gel injection procedure and what I could expect as well as how to properly care for it. He also suggested the possibility of an additional injection of cortisone , once this series If 3 consecutive gel shots were done, should he see a need. I very much appreciate his expertise and caring manner.
Providence Patient
Very pleased.
Providence Patient
Mr. Onosaki is the best healthcare professional I have ever been treated by.
Providence Patient
I had my hip replaced by Dr. Yin. Jon Onasika is his PA and Was very helpful.
Providence Patient
Jon has, in the past and the present, always been very thorough on post op information and observation of my recovery. Very happy with my visit with him. Very professional and personable.
Providence Patient
Excellent care from everyone at this practice
Providence Patient
Jon Onasaki is fanrastic
Providence Patient
Everything was good. Always showing concern & care for all my questions & needs.
Providence Patient
JON ONASAKI IS EXCEPTIONAL IN EVERY WAY. I CANNOT SAY ENOUGH POSITIVE THINGS ABOUT JON ONASAKI.
Providence Patient
This provider is highly competent, generous with time and information and genuinely caring. I'm grateful for all they have done for me.
Providence Patient
My health care provider was very caring letting me know before giving me the shot, he went though all steps he'll be taking while giving the shot
Providence Patient
Polite, friendly, good visual of my knee and knee problem. He suggested I need a brace. Provided at office and is really working well
Providence Patient
The provider I saw is excellent. He took time to discuss the progress I have made (from knee surgery), and also discussed my need and timing for my next knee surgery. He knows my medical history--but also always comments on things regarding my personal life that let me know he cares about the whole patient/person--just just the part that needs the treatment.
Providence Patient
Jon is fabulous! He takes the time to listen to concerns and addresses any questions or concerns.
Providence Patient
Jon is very detailed. We liked how he explained things
Providence Patient
This was a post op appointment after my hip replacement surgery. I was very satisfied with all involved.
Providence Patient
Jon Onosaki is very knowledgeable, attentive and caring, I have been very happy to have him as a guide through my knee replacement experience.
Providence Patient
Received excellent care
Providence Patient
My health care providers, Dr Bob Yin and Jon Onasaki PA, are excellent and I feel so lucky to have them.
Providence Patient
Very good follow up visit after knee replacement surgery a week before
Providence Patient
Thy best orthopedic Best doctors I have 2 my family going to them Highly recommended Very caring, helpful, and kind
Providence Patient
Every experience I have had with this provider prior to and after my surgery has been outstanding.
Providence Patient
I was feeling anxious about my recovery following the arthroplasty procedure, but Jon reassured me that everything was progressing well based on the x-ray results. He took the time to demonstrate a specific exercise and recommended that I incorporate it into my routine. He also let me know that if I had any lingering concerns, I shouldn't hesitate to call or message him.
Providence Patient
Dr Onosaki and Dr Bob Yin are great people who care about my health. Absolutely the best at what they do. Complete professionals
Providence Patient
We call Dr. Onosaki the fun doctor. He is so personable and very knowledgeable. I would recommend him highly.
Providence Patient
Dr. Yin's office along with PA Jon Onosaki are an asset to any organization and patients
Providence Patient
Jon & Dr. Yin are the best.
Providence Patient
I was put at ease during an uncomfortable procedure.
Providence Patient
Jon always provides excellent care and answers all my questions
Providence Patient
Procedure and follow up care as well as what to expect was thoroughly explained.
Providence Patient
They were all good and helpful
Providence Patient
The morning after my overnight hospital stay, Jon, took the time to personally check in on me. He made sure I was comfortable and took genuine care in addressing any lingering discomfort or concerns I might have had. The following day, Jon reached out again-this time with a thoughtful phone call-to see how I was healing and to discuss any potential side effects or worries I had about the medications. His attentiveness and compassion made a lasting impression and truly reassured me during the recovery process.During the scheduled appointment on [Date] 2025, Jon carefully examined the operated knee after removing the dressings. He said my recovery is going well and emphasized that if I have any questions or concerns before our next visit with him , I should feel free to call him at any time.
Providence Patient
John is a very caring and committed man
Providence Patient
Dr. Bob Yin and Jon Onosaki (PA) are the best. I always feel like I'm getting the best care.
Providence Patient
I had a vey good and productive experience with DR John
Providence Patient
This was a post-op visit. This is not my PCP, only my orthopedist.
Providence Patient
Jon is knowledgeable about my condition and answers all my questions.
Providence Patient
The providers are always friendly and helpful. They know my case. They are very encouraging.
Providence Patient
Really liked my doctor and the care.
Providence Patient
Excellent care provider! Was able to answer all my questions and problem-solved with me regarding an upcoming vacation.
Providence Patient
Very pleased with this clinician and the practice office.
Providence Patient
Jon Onasaki is an outstanding provider that has extreme expertise and experience. He patiently listens and thoroughly explains and answers all questions. I am referring some family members to him. Thank you Jon.
Providence Patient
Jon was very knowledgeable and explained my surgical result very clearly. His input going forward was also extremely helpful.
Providence Patient
During this first visit with Dr. Onosaki I found him to be knowledgeable with a wonderful bedside manner. I left the office feeling as if I had known him for a long time.
Providence Patient
Able to handle any questions concerning rehab
Providence Patient
Great experience. It's a bit of a drive
Providence Patient
Dr Yin and Jon Onasaki are the best! Incredibly professional, knowledgeable, thorough, and respect your time.
Providence Patient
Excellent care and service!
Providence Patient
Dr. Bae, my primary is awesome. He referred me to Dr. Yin for hip replacement surgery. He and PA Jon Onosaki, together saw me for on [Date] for my post-op visit.
Providence Patient
Grateful for the consciousness care I received here.
Providence Patient
The Doctor was very clear and helpful. I feel he's an excellent physician
Providence Patient
He is an excellent provider, very courteous, professional, and explains well and listens well
Providence Patient
John Onosaki was very professional and explained everything thoroughly. He did not rush through my appointment and listened to my questions or concerns.
Providence Patient
Great care from Jon and team.
Providence Patient
All was good!!
Providence Patient
Excellent experience for follow up for recent surgery.
Providence Patient
This was a post surgery follow up, the fourth since my surgery. I had a number of questions related to my current status and Jon listened and addressed the questions I had. There was no pressure to hurry up and finish, he was attentive and listened to what I had to say
Providence Patient
Doctor was patient, kind attentive. Bedside manner was excellent, any fear or anxiety I had disappeared after speaking to the doctor. Office staff was friendly and helpful. Because of the care l no longer fear Having the second knee replacement surgery. [Name(s)]
Providence Patient
Love the way Jon Onosaki listens to everything I have to say. He makes his assessment and tells me in terms I can understand.
Providence Patient
Great experience.
Providence Patient
Jon Onosaki is a caring PA who listens, offers suggestions, and is competent at what he does.He really takes an interest in my concerns.and never rushes through my appointments.He is an asset to the orthopedics department.
Providence Patient
And I Have Referred Several People!
Providence Patient
Outstanding service, knowledge and overall interaction
Providence Patient
I have sent over 25 people to this office for care in the last 2 years. Excellent Dr and PA!
Providence Patient
Excellent care and outcome of knee replacement
Providence Patient
Dr. Yin, and his PA, John Oisake are excellent providers, I would strongly recommend them.
Providence Patient
My appointment with Jon Onosaki PA was very thorough but best of all he was very pleasant with excellent bed side manner.
Providence Patient
Both Dr Yin and Onosaki are amazing
Providence Patient
Very thorough, personal and attentive. Dr.Yin examined my MRI together with me. He diagnosed and pointed out exactly where my supraspinatus torn was, why it needed surgery, consequences and benefits, as well as the expected recovery time. Jon Osaki has been very helpful throughout the recovery process. He gave specifics PT tips that helped to break my scar tissue and regain my range of motion 3 months ahead of schedule! Overall, Iam very pleased with my decision to choose Dr. Yin and Jon. I highly recommend them to others.
Providence Patient
Jon is an amazing PA. He is professional, humble, and an excellent clinician. Jon clearly explained what was going on with my hip and described my progress. Give Jon a raise!
Providence Patient
I love that John is always patient and seems very kind and caring on a personal level.
Providence Patient
All good
Providence Patient
This PA provider and primary orthopedist provider, Dr Yin, are outstanding In all areas of their practice, communication, demeanor, and collaboration.
Providence Patient
This office and their care is some of the best I have experienced. I'm thankful.
Providence Patient
Always good service
Providence Patient
Always excellent care provided
Providence Patient
Conditions and Procedures
- Abnormalities Of The Tarsal Bones
- Accessory Navicular
- Achilles Tendon Injury
- Achilles Tendonosis
- Acromioclavicular Joint Separation
- Ankle Dislocation
- Ankle Fracture
- Ankle Injury
- Ankle Tendon Tear
- Anterior Cruciate Ligament (Acl) Injury
- Arm Fracture
- Arm Injury
- Arthritis
- Arthritis Of Knee
- Bursitis
- Bursitis Of The Elbow
- Cartilage Injury
- Chronic Muscle Injury
- Chronic Tendon Injury
- Clavicle Fracture
- Compartment Syndrome
- Compound Fracture
- Dislocated Patella
- Distal Radial Fracture
- Elbow Bone Spur
- Elbow Dislocation
- Elbow Fracture
- Elbow Injury
- Elbow Sprain
- Epicondylitis
- Femur Fracture
- Fibula Fracture
- Foot Tendon Tear
- Forearm Fracture
- Frozen Joint
- Fundoplication
- Gluteal Injury
- Hamstring Injury
- Heterotopic Ossification
- Hip Abductor Tear
- Hip Arthritis
- Hip Dislocation
- Hip Fracture
- Hip Impingement
- Hip Injury
- Hip Osteoarthritis
- Humerus Fracture
- Iliotibial Band Friction Syndrome
- Joint Dislocation
- Joint Infection
- Joint Sprain
- Knee Dislocation
- Knee Fracture
- Knee Injury
- Knee Instability
- Lateral Epicondylitis
- Leg Fracture
- Leg Injury
- Leg Mass
- Ligament Injury
- Ligament Tear
- Medial Collateral Ligament Injury Of The Knee
- Medial Epicondylitis
- Meniscus Injury
- Meniscus Tear
- Monteggia Fracture
- Muscle Injury
- Muscle Strain
- Muscle Tears
- Non Displaced Fracture
- Non-Displaced Fracture Of Radius
- Nonunion Fracture
- Olecranon Bursitis
- Orthopedic Infections
- Osteochondral Lesions
- Osteochondral Lesions Of The Hand And Wrist
- Osteochondroma
- Osteonecrosis
- Osteonecrosis Of The Hip
- Overuse Injury
- Paratenonitis
- Patellofemoral Syndrome
- Pectoralis Major Tendon Injury
- Pelvic Fracture
- Prosthetic Joint Infection
- Proximal Ulnar Fracture
- Quadrangular Space Syndrome
- Quadriceps Injury
- Radial Fracture
- Radial Head Fracture
- Radial Pseudarthrosis
- Repetitive Stress Injury
- Rotator Cuff Disorders
- Rotator Cuff Injury
- Separated Shoulder
- Shoulder Dislocation
- Shoulder Injury
- Shoulder Instability
- Shoulder Strain
- Snapping Hip Syndrome
- Sports Related Injury
- Stress Fracture Of The Radius
- Stress Fractures
- Synovitis
- Tendinosis
- Tendon Injury
- Tenosynovitis
- Tibia Fracture
- Tibial Spine Fracture
- Tibial Tendonitis
- Ulnar Fracture
- Ulnar Nerve Compression
- Work Related Musculoskeletal Disorders
- Wrist Dislocation
Jon is professional and does a good job with patient education.
Providence Patient