Our Services
Endocrinology
Nuclear Medicine
Endocrinology
Care for Hormone & Glandular Disorders
Endocrinology is the field of medicine that focuses on the endocrine system, the body’s system responsible for hormone production. This complex system influences everything from metabolism and digestion to mood and growth. Endocrinologists are specialized doctors who diagnose and treat a variety of conditions related to hormone imbalances, including diabetes, hyperthyroidism, and osteoporosis.
Conditions We Treat:
- Diabetes (Type 1 & 2)
- Hyperthyroidism
- Osteoporosis
- Adrenal disorders
- Pituitary disorders
- Cholesterol disorders
- And many others!
Diagnostic Testing & In-Clinic Procedures:
- Ultrasounds
- Fine needle aspiration
- Radioactive iodine (I-131) therapy
- DEXA bone density scans
- Continuous glucose monitoring studies
- Insulin pump management
- In-office lab blood draws
Learn more about endocrinology and our endocrine procedures →
Nuclear Medicine
Nuclear Imaging & Therapy
Nuclear medicine is a specialized area of radiology that uses a small amount of radioactive substances for the diagnosis and treatment of thyroid diseases and other endocrine and glandular conditions. This is done using safe and targeted radiotracers, which consist of radioactive materials combined with carrier molecules. ENMA is one of the few specialty clinics in San Antonio that provides on-site nuclear medicine treatment with a full-time nuclear medicine technologist.
Nuclear Medicine Treatment:
Radioactive iodine (I-131) therapy
Radioactive iodine I-131 therapy, often just called I-131 therapy, is a medical treatment commonly used for conditions like hyperthyroidism and thyroid cancer.
In this nuclear medicine procedure, a patient takes a small amount of a radioactive substance, known as a radiotracer, usually by swallowing a specially prepared dose from their doctor or nuclear medicine technologist. I-131 is a form of iodine that gives off radiation. This radiation is used to target and destroy the thyroid cells causing problems, such as those producing too much thyroid hormone, resulting in hyperthyroidism.
Essentially, this treatment helps to reduce the overactivity of the thyroid gland or treat cancer by carefully targeting and eliminating the unhealthy cells.
What to expect
- Referral or authorization required from your physician
- Preparation instructions provided in advance
- Follow-up visits after treatment
Questions about I-131 therapy?
Learn more about nuclear medicine and I-131 therapy →
We accept most major insurance plans
Including Aetna, Blue Cross, Humana, Medicare, Tricare, UHC, and more
Ready to schedule a visit?
Call us at (210) 233-5483 or request an appointment online.

