Welcome to Orange County Rheumatology


Dr. Ananth

Started by Lalitha Ananth, MD, FACP in 1988, we are a medical clinic dedicated to the diagnosis and management of rheumatologic and immunologic diseases in adults and children. We specialize in rheumatoid arthritis, osteoarthritis, osteoporosis, lupus, fibromyalgia, scleroderma, Behcet’s syndrome and a wide array of systemic, inflammatory, and autoimmune diseases. Our staff physician, Dr. Lalitha Ananth, is certified by the American Board of Rheumatology and the American Board of Internal Medicine and well respected in the medical community. She completed her residency and fellowship training here in Southern California (for more information, see her Curriculum Vitae) and has been a proud resident of Orange County for over thirty years.

At Orange County Rheumatology, we work hard to offer you the excellent care you deserve. We are up to date on our medical knowledge and follow the methods of investigation and treatment endorsed by the American College of Rheumatology. Most importantly, we are committed to working with you to get the relief you deserve.

Orange County Rheumatology is conveniently located within the Fountain Valley Regional Hospital and Medical Center, also home to several laboratory facilities and the Fountain Valley Imaging Center. To make an appointment, call us at (714) 549-4081 or contact us by completing our online form.

To help you get the most out of your first visit, we ask that you complete the three forms under the Patient Resources tab. Our office believes that the best way to improve our patients’ quality of life is to have patients be integral members of the treatment team. Above all, Dr. Ananth strives to deliver high-quality, individualized care to her patients and we are honored to be a part of your care!

ACR Logo

The American College of Rheumatology is an organization of and for physicians, health care professionals, and scientists that advances rheumatology through programs of education, research, and advocacy. Above all, it fosters excellence in the care of people with rheumatic and musculoskeletal diseases.

Our Specialties

  • Rheumatoid arthritis
  • Ankylosing spondylitis
  • Gout
  • Systemic lupus erythematosis (SLE)
  • Osteoporosis
  • Osteoarthritis
  • Scleroderma
  • Behcet’s Syndrome
  • Fibromyalgia
  • Raynaud’s syndrome
  • Psoriatic arthritis
  • Vasculitis
  • Carpal Tunnel syndrome
  • Degenerative disc disease
What is a Rheumatologist?

A rheumatologist is a physician who is qualified by additional training and experience in the diagnosis and treatment of arthritis and other diseases of the joints, muscles and bones. Many rheumatologists conduct research to determine the cause and better treatments for these disabling and sometimes fatal diseases.

Rheumatologists treat arthritis, certain autoimmune diseases, musculoskeletal pain disorders and osteoporosis. There are more than 100 types of these diseases, including rheumatoid arthritis, osteoarthritis, gout, lupus, back pain, osteoporosis, fibromyalgia and tendonitis. Some of these are very serious diseases that can be difficult to diagnose and treat.