Charles Calais, DO

Allergist & Immunologist - Internal Medicine

Dr. Charles Calais is an Allergist & Immunologist - Internal Medicine in San Antonio, TX with special training and skill in diagnosing and treating allergies and immunodeficiencies. As an Allergist & Immunologist - Internal Medicine, Charles Calais, DO performs tests and therapies to treat abnormal immune system reactions. Allergy & Immunology - Internal Medicine is the management of immune system disorders. Significant diseases and conditions treated by Allergists & Immunologists - Internal Medicine include allergic conjunctivitis, food allergies, atopic dermatitis, autoimmune disorders, and immune deficiency syndromes. Medical tests, procedures and therapies provided by Allergists & Immunologists - Internal Medicine include blood tests, immunizations, antihistamine and immunosuppression prescription medication, nutritional therapy, acupuncture, and botanical supplements.

An internist doctor of osteopathy that specializes in the treatment of allergy and immunologic disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Special Qualifications in the field of Allergy & Immunology.

• AARP Medicare

• Aetna [Aetna Health Inc. (a TX corp.)]

• Blue Cross Blue Shield of Texas

• Caprock HealthPlans

• CCMSI

• Cigna Healthcare [Cigna Health and Life Insurance Company]

• HealthSmart [HealthSmart Holdings, Inc.]

• Humana [Humana Health Plan of Texas, Inc.]

• Imagine Health

• Mail Handlers Benefit Plan (MHBP)

• Medicaid

• Medicare

• Molina Marketplace [Molina Healthcare of Texas, Inc.]

• Mutual of Omaha Insurance Company

• Novitas Solutions

• Optum [Optum, Inc.]

• Oscar Insurance Company of Texas

• Physicians Mutual Insurance Company

• Railroad Medicare

• Superior HealthPlan

• TriCare

• UnitedHealthcare [All Savers Insurance Company]

• UnitedHealthcare Insurance Company

• United Medical Resources (UMR)

• USAA [USAA Life General Agency]

• WebTPA

• WellMed [WellMed Medical Management Inc.]

• WellPoint