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Your Trusted Rheumatology Care Partner in Bellevue
Overlake Arthritis & Osteoporosis Center has been dedicated to advancing rheumatology care in the Pacific Northwest since its founding. Our board-certified rheumatologists bring decades of combined experience in treating arthritis, autoimmune diseases, and osteoporosis, combining clinical expertise with compassionate patient care. We maintain state-of-the-art facilities equipped for infusion therapy, on-site bone density screening, and cutting-edge clinical research. Our team emphasizes personalized treatment plans, patient education, and collaboration with specialists to ensure comprehensive care for complex conditions. With a focus on evidence-based practices and continuous innovation, we empower patients to actively participate in their healthcare journey.

Our commitment to excellence has earned recognition from leading medical organizations and consistent patient satisfaction. We maintain affiliations with top research institutions to provide access to emerging therapies through clinical trials. Our practice philosophy centers on listening to patients' needs while maintaining the highest standards of medical professionalism. Through years of dedicated service, we've built a reputation as a trusted partner in managing chronic rheumatologic conditions. Our multidisciplinary approach ensures patients receive coordinated care that addresses both symptoms and underlying disease processes.
Services
Infusion Therapy DEXA Scans Clinical Research Autoimmune Disease Management Osteoporosis Treatment
Highlights and features
  • Board-certified rheumatologists with 20+ years of combined experience
  • On-site infusion center with specialized nursing staff
  • Access to cutting-edge treatments through clinical research programs
  • Personalized one-on-one physician consultations for all patients
  • Comprehensive care coordination with other medical specialists
What people say
Exceptional nursing care Thorough physician consultations Personalized treatment plans Compassionate staff Effective treatment outcomes
Services
Infusion Therapy
Our state-of-the-art infusion center provides specialized intravenous treatments for rheumatologic conditions. Board-certified nurses administer therapies for rheumatoid arthritis, psoriatic arthritis, and other autoimmune diseases in comfortable, private treatment spaces. Each session includes continuous monitoring and patient education about treatment protocols and potential side effects.
DEXA Scans
Advanced dual-energy X-ray absorptiometry (DEXA) scans assess bone mineral density for osteoporosis diagnosis and monitoring. Our certified technicians perform painless, low-radiation scans of the spine and hips, with immediate results interpretation by rheumatologists to guide treatment decisions.
Clinical Research
Participate in cutting-edge clinical trials for new rheumatology treatments. Our research team offers access to investigational therapies for gout, lupus, and inflammatory arthritis through partnerships with leading pharmaceutical companies. Patients receive comprehensive monitoring and potential early access to innovative medications.
Autoimmune Disease Management
Comprehensive care for complex autoimmune conditions including lupus, vasculitis, and scleroderma. Our specialists develop personalized treatment plans combining medication management, lifestyle modifications, and regular disease activity monitoring to optimize patient outcomes and quality of life.
Osteoporosis Treatment
Multidisciplinary approach to osteoporosis care featuring risk assessment, bone density monitoring, and targeted therapies. Our program includes nutritional counseling, fall prevention strategies, and medication management to reduce fracture risk while maintaining patient independence.
People
Arinola Dada
Board-Certified Rheumatologist
Dr. Dada specializes in arthritis and autoimmune disease treatment with over 20 years of clinical experience. She founded OAOC to provide personalized rheumatology care and leads its clinical research program. Her expertise includes regenerative therapies and complex autoimmune conditions.
Deepa Gali
Rheumatologist
Dr. Gali focuses on autoimmune disease management with particular interest in inflammatory arthritis. She emphasizes patient education and holistic approaches to chronic disease management. Her clinical experience spans over a decade in Washington state.
Justin Putz
Board-Certified Rheumatologist
Dr. Putz specializes in gout management and connective tissue diseases. A former military medic, he brings precision medicine approaches to rheumatoid arthritis and spondyloarthropathy treatment. He emphasizes patient-centered care and early diagnosis.
Varsha Sridhar
Clinical Research Physician Manager
Dr. Sridhar leads OAOC's clinical research initiatives with expertise in study design and patient recruitment. Her public health background enhances trial implementation while maintaining patient safety and ethical standards in rheumatology research.
Tierra Anderson
Nurse Practitioner
Tierra provides rheumatology care with 15+ years of patient management experience. She specializes in chronic disease management and patient education, focusing on autoimmune conditions and osteoporosis care in the geriatric population.
Questions
What rheumatology services do you offer?
We provide infusion therapy, DEXA scans, autoimmune disease management, osteoporosis treatment, and clinical research participation opportunities.
Do you accept new patients?
Yes, we welcome new patients seeking specialized rheumatology care. Contact our office to schedule an initial consultation.
Are your physicians board-certified?
All our rheumatologists are board-certified with extensive experience in autoimmune and musculoskeletal disease management.
Can I participate in clinical trials?
Eligible patients may join our active clinical research programs offering access to investigational rheumatology treatments and therapies.
What insurance plans do you accept?
We work with most major insurance providers. Contact our billing department for specific coverage verification and assistance.
How do I schedule an appointment?
Call our main office at (425) 453-0766 or use our online request form to schedule a consultation with our rheumatology team.
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Reviews (7)
Mollie Binder
May 24, 2022 Report
I have been a patient of Dr. Ta's for three years for RA. He is wonderful; very compassionate, a great listener and great diagnostician. I feel very optimistic about maintaining an active and healthy life style! With the addition of Cayla Alexander, ARNP, my care team keeps getting better, and she truly listens to my concerns and is caring and responsive. A special shout out to nurse Felicia; she is great! dr. ta's
Deborah Murray
May 18, 2022 Report
I have been seeing Dr. Ta for a quite a few years now and I believe him to be very kind and knowledgeable. Due to Covid we have been having Zoom appointments but I did go into their new office yesterday and I found it to be a 100% improvement from the old office. Noticed new staff which was a huge improvement as well! After reading the other reviews, a few people complained of their waiting time.

I have never run across this. He has always been prompt with my appointments. But, after working in the medical field myself for over 45 years, I do know and understand that that isn't always the case everytime.
Michelle Marshall
May 14, 2022 Report
I have been so pleased with the care I have received at Overlake Arthritis and Osteoporisis Center. Dr. Dada is my primary doctor there, and she has been so helpful in managing my RA. She listens well, is up on the latest knowledge regarding treatments, and is caring. I have also seen Cayla Alexander, who is fabulous. She really takes the time to listen to patients' concerns and explains everything in good detail. Both Cayla and Dr. Dada have given me hope with my disease.
Cori Flanders
May 14, 2022 Report
Extremely professional and highly skilled care. I was treated with great respect and compassion from the moment I walked in the office. The staff's/doctor's demeanor put me at ease and they were all very thoughtful in providing top quality health care. I highly recommend this clinic.
Nicole Parks
Apr 22, 2022 Report
Dr. Dada and her staff are absolutely amazing! I have been going for almost a year and they have been helpful in dealing with my RA. Anytime I have needing anything, they are prompt at returning calls, setting appointments, and working with my insurance. Highly recommend Dr. Dada and her practice.
Mila C.
Mar 02, 2022 Report
I highly recommend Dr Ta to anyone who's looking for a rheumatologist. I am a longtime patient and have followed him through a couple of moves. He really takes time to listen about all my different issues that come with Lupus, and thoroughly addresses all of them. For me, living with lupus has been so much easier because I have him to rely on. He is also one of the nicest doctors you'll ever meet.
Christy Johnson
Feb 25, 2022 Report
I've seen Dr. Ta for a few years and he's been great in helping me manage my autoimmune disease. He's kind, caring and very knowledgeable. He was recommended to me when my first rheumatologist retired. I've met when she helped me with my infusion, Dr. Dada and she was just as great Dr Ta is on time and thorough.