Dr. Ratiner trained at the Univ of CA San Francisco (UCSF). In 1999, he began a Rheumatology practice in the San Fernando Valley of Los Angeles. He is a Clinical Instructor of Rheumatology at UCLA. He is a frequent speaker at local hospitals to physicians and at community centers to patients on topics such as Osteoarthritis, Rheumatoid Arthritis, Gout, Osteoporosis, Lupus, and Fibromyalgia. Dr. Ratiner also has a special interest in PRP and Stem Cell therapy for the treatment of arthritis.

Medical School
  • Louisiana State University School of Medicine, New Orleans, LA
  • UCSF School of Medicine, San Francisco, CA
  • UCSF Medical Center at Mt. Zion, San Francisco, CA
  • UCSF School of Medicine, San Francisco, CA
  • English
  • Russian
  • Spanish


Rheumatology Therapeutics Medical Center
18376 Clark Street
Tarzana, CA 91356
(818) 996-4077
(818) 996-4069


  • Rheumatology (Board Certified)
  • Orthopedic Surgery (Board Certified)
  • Internal Medicine (Board Certified)
Clinical Interests
  • Chronic Pain
  • Osteoporosis
  • Massage Therapy
  • Arthritis
  • Lupus
  • Gout
  • Fibromyalgia
  • Osteoarthritis
  • Rheumatoid Arthritis
  • Stem Cell Therapy
  • Platelet-Rich Plasma Therapy


Insurances Accepted
  • Aetna PPO/POS/EPO
  • Affiliated Health Funds PPO
  • Anthem Blue Cross PPO/POS/EPO
  • Blue Cross/Blue Shield PPO
  • Blue Shield HMO Plus POS
  • Blue Shield PPO/POS/EPO
  • Cigna PPO/POS/EPO
  • CorVel Health PPO/EPO
  • Covered CA Anthem BC PPO/EPO
  • Covered CA Blue Shield PPO/EPO
  • Covered CA Health Net PPO
  • First Health Network PPO/EPO
  • Foundation Health Plan PPO/EPO/POS
  • Galaxy PPO
  • GWH-CIGNA (Great West) PPO, POS
  • Health Management Network PPO
  • Health Net PPO/EPO/POS
  • Health Payors Organization PPO
  • Humana ChoiceCare PPO
  • ILWU Blue Shield PPO
  • Interplan PPO/ EPO
  • LA Foundation Medical Care PPO/ EPO
  • MCS Patient Centered HC PPO
  • Medical Network Incorporated, PPO
  • Medicare
  • Medi-Medi (Medicare-Medi-Cal)
  • MultiPlan LTD PPO
  • National Provider Network PPO
  • Pacific Health Alliance PPO/ POS
  • Private Healthcare System PPO/POS
  • Prudential Healthcare
  • Secure Horizons POS
  • Three Rivers Provider Network PPO
  • Tricare PPO
  • TriWest PPO
  • United Healthcare PPO/POS/EPO
  • Universal Health Network PPO
  • Workers Compensation