70 North Country Road, Suite 205
Port Jefferson, NY 11777


The professionals at Mather Endocrinology are pleased to offer today's best medicine to our patients. Our practice addresses general endocrinology, diabetes, thyroid disorders, cholesterol disorders, and hormone imbalance.

Our dedicated team of healthcare professionals and staff are committed to providing quality patient care by utilizing the latest in medical advances and technology. We offer comprehensive treatments to improve the quality of life for our patients.

What does an endocrinologist do?
The glands in a person's body release hormones. Endocrinologists treat people who suffer from hormonal imbalances, typically from glands in the endocrine system. The overall goal of treatment is to restore the normal balance of hormones found in a patient's body.

Some of the more common conditions treated by Mather Endocrinology include:

  • Adrenal disorders
  • Calcium/bone disorders
  • Cancers of the endocrine glands
  • Cholesterol (lipid) disorders
  • Diabetes; Pre-diabetes, Type 1 diabetes, Type 2 diabetes, gestational diabetes
  • Hypertension
  • Insulin pump and disease management
  • Menopause
  • Men and women's health
  • Metabolic syndrome
  • Hypertension
  • Osteopenia and osteoporosis
  • Over and underactive thyroid
  • Pituitary tumors
  • Thyroid diseases
  • Weight management

Meet our professionals photo:
Top row left to right; Mark Doublet, RD, CDE, NASM-CPT and Margaret Hofacker, BSN, RN, CDE.
Bottom row, left to right; Amrita Srivastava, MD, Ella Rosenbloom, MD and Kathryn Corbett-Shouler, RD, CDN.