Dr. Mark Jason, MD

Rheumatology  |  
Male  |  
Age 68
Insurances AcceptedSave
Dr. Mark Jason, MD
Dr. Mark Jason, MD is a rheumatology doctor who practices in Laguna Hills, CA. He is 68 years old and has been practicing for 40 years. Dr. Jason is affiliated with Saddleback Memorial Medical Center- Laguna Hills and Northridge Hospital Medical Center.

Arthritis Center Of Southern OC

25411 Cabot Rd Ste 112

Laguna Hills, CA 92653

Contact Information

(949) 364-5119

Dr. Mark Jason, MD

Dr. Mark Jason, MD

Accepted insurance

  • Aetna
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of California
  • Blue Shield of California
  • Cigna
  • Commercial Insurance Company
  • Humana
  • Molina Healthcare
  • MultiPlan
  • Optima Health
  • UnitedHealthCare

*Please verify this information when scheduling an appointment.

Learn about Dr. Jason

Dr. Jason's Experience

Dr. Jason's experience matches your search based on the following criteria:
  • Based on total number of patients treated over the last 12 months
  • Specializes in Rheumatology
  • Board certified in Internal Medicine and Rheumatology
  • No malpractice claims found
  • No sanctions found
  • No board actions found


  • Rheumatology

Board Certifications

  • Internal Medicine
    Accredited by: American Board of Internal Medicine*
  • Rheumatology
    Accredited by: American Board of Internal Medicine*

Conditions Treated

  • Arthritis
  • Autoimmune Diseases
  • Bone Disorders
  • Bursitis
  • Chronic Neck Pain
  • Degenerative Disc Disease
  • Enthesopathy of Hip (incl. Trochanteric Bursitis)
  • Enthesopathy of Knee (incl. Bursitis of Knee)
  • Fibromyalgia
  • Foot Conditions
  • Gout
  • Hammer Toe
  • Hand Conditions
  • Intervertebral Disc Disease
  • Joint Pain
  • Knee Disorders
  • Limb Pain
  • Low Back Pain
  • Lupus
  • Malaise and Fatigue
  • Osteoarthritis
  • Osteoarthritis of Ankle and Foot
  • Osteoarthritis of Hand or Wrist
  • Osteoarthritis of Hands
  • Osteoarthritis of Hip
  • Osteoarthritis of Knee
  • Osteoarthritis of Shoulder
  • Osteoarthritis of Spine
  • Osteopenia
  • Osteoporosis
  • Patellofemoral Pain Syndrome or Knee Pain
  • Polymyalgia Rheumatica (PMR)
  • Psoriatic Arthritis
  • Pulmonary Disease
  • Rheumatoid Arthritis
  • Shoulder Disorders
  • Sjögren's Syndrome
  • Spine Disorders
  • Temporal Arteritis
  • Trigger Finger
  • Vascular Disease
  • Vasculitis


Read More


  • Joint Drainage
  • Steroid Injection
  • Viscosupplementation With Hyaluronate

Background Check

0 Malpractice Claims

No malpractice history found for California.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • University Of Illinois College Of Medicine Chicago
    Medical School | Graduated 1977
  • Long Beach Va Hospital
    Internship Hospital | Completed 1978
  • Long Beach Va Hospital
    Residency Hospital | Completed 1980
  • University Calif Hospital
    Residency Hospital | Completed 1980
  • University Calif Hospital
    Fellowship Hospital | Completed 1982

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Jason has no media or publications listed.

Languages Spoken

  • English
  • Spanish

Memberships & Professional Affiliations

Dr. Jason does not have any memberships or affiliations listed. If you are Dr. Jason and would like to add memberships or affiliations, please update your profile.

Dr. Jason's Reviews

Likelihood of recommending Dr. Jason to family and friends
based on 30 total reviews (8 with comments)
Dr. Jason's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    10 to 15 minutes
Patient Comments (8)
Santa Ana, CA |
I would not recommend this doctor if he was the last rheumatologist on Earth. Horrible and very unprofessional. Uncompassionate and distracted by his own interests. Kept my X-rays and refused to mail them, because he was too cheap to pay for postage. Doesn't read MRIs, but lied to the insurance. He requested blood work and, again, told the insurance I was the one asking for it. He ordered a large amount of X-rays and said I WAS THE ONE that wanted ALL of them.
Lake Forest, CA |
I have read the other reviews left on this site and I must comment. Dr. Jason is an unusual person - think Dr. House from the TV. Yes, he can be gruff and even nasty. But the truth of the matter is this: there is no better diagnostician in Orange County. So if you want your hand held and your tears wiped, go somewhere else! But if you want answers to your problems and an accurate diagnosis, this is where you need to be!
Richmond, CA |
Not only is he terrible at his job but I would not recommend a sick person ever be around him. He clearly does not care about his patients and had nothing positive or hopeful to say to a scared 20 year old. He basically asked me to decide if I wanted kids right then and scolded me for having a chiropractor order a blood test before seeing a rheumatologist (why would I, if I didn't know I had RA). Wouldn't stop talking about himself and if he did it was to call me stupid and naive.
During the initial exam he never introduced himself and left the door wide open, which was adjacent to his clinic area. Patients could hear and see the entire office visit although there was nothing to see since he did absolutely no physical exam. He did order a lot of lab tests to narrow down the issue but was no more professional on my second and final visit.
in Rancho Santa Margarita, CA |
Dr. Jason is an extremely experienced Rheumatologist, very good at diagnosis and treatment of arthritis and other auto-immune diseases. His treatment has turned my severe arthritis problems into manageable issues for me, without him I'd be in a wheelchair. Highly recommended. He has a great staff and facilities too.
Dr Jason came In the room after I had waited patiently for 40 min. He said why can't you understand I was taking a dance class and he was trying to get tickets to JLo in Vegas. I am a sick patient who is PAYING to hear this? After that he told me I should stop complaining about my pain & watch him do the moon walk! I almost burst into tears. He has no regard for sick patients and I think he should be checked in the head.
in Irvine, CA |
Wow switched doctors and the better RA doctor couldn't believe the mg of predazon which may cause severe long term effects. This guy only plays piano and doesn't even talk to patients. I tell you he overmedicated my husband for three years and wow really the better RA doctor couldn't believe the amount of mg of predazone and said in his 30 years he's NEVER prescribed that much dosage. Stay away.
in Laguna Niguel, CA |
I was delivered the horrible news that I had HLA-B27 and was sitting in a gown with my butt hanging out, pondering if I should have children. I was left there by myself, when he came in the room and started laughing and taking calls for tickets for the Phantom of the Opera. He explained to me it was for charity. Nice, but not professional or considerate. I never went back.
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Now Accepting New Patients
Dr. Jason accepts 11 insurance carriers
  • Aetna
    Choice Plus POS II
  • Blue Cross Blue Shield
    Blue Card PPO
  • Blue Cross Blue Shield of California
    Advantage Preferred DirectAccess Plus PPO
    Blue Cross Blue Shield of California PPO
    Select Plus HMO
  • Blue Shield of California
    Access Plus Savenet
    Local Access Plus HMO
  • Cigna
    Cigna HMO
    Cigna PPO
    Open Access Plus
  • Commercial Insurance Company
  • Humana
  • Molina Healthcare
  • MultiPlan
    MultiPlan PPO
    PHCS Network PPO
  • Optima Health
  • UnitedHealthCare
    United Healthcare

*Please verify this information when scheduling an appointment.

Hospitals where Dr. Jason has admitting privileges

Northridge Hospital Medical Center
18300 Roscoe Blvd
Northridge, CA 91325
View Hospital Profile
Saddleback Memorial Medical Center- Laguna Hills
24451 Health Center Dr
Laguna Hills, CA 92653
View Hospital Profile

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