The body has several hormone-secreting glands known as “endocrine” glands. These include the pancreas, thyroid, parathyroid, pineal, hypothalamus, adrenal glands, pituitary glands, and the ovaries and testes. Essen Medical Associates’ team of Board-Certified Endocrinologists is highly trained to evaluate and treat illnesses relating to these glands.

Our areas of expertise include:

  • Diabetes (Types 1, 2 and gestational)
  • Obesity and related issues
  • High cholesterol (Hyperlipidemia)
  • Osteoporosis and osteopenia, as well as vitamin D deficiency
  • Thyroid disorders
  • Pituitary and adrenal gland disorders
  • Metabolic and nutritional disorders
  • Reproductive gland disorders and infertility
  • Polycystic Ovary Syndrome and irregular menstrual cycle
  • Sexual development and sexual function disorders

Our Expert Team of Specialists Includes:

Alfonso A. Ortiz, M.D.
Internal Medicine & Endocrinology
(Bilingual Spanish/English)

Rudabah Hasan, M.D.
Board-Certified Endocrinologist

Dr. Valentine Burroughs.
Internal Medicine & Endocrinology
(Bilingual Spanish/English)​

Locations

  • 2015 Grand Concourse

    Dr. Rudabah Hasan
    Office Hours:
    Alternate Mondays 9:00 am - 1:00 pm


  • Alfonso Ortiz
    Monday 9:00 am - 5:00 pm
    Thursday 9:00 am - 1:00 pm

  • Dr. Valentine Burroughs
    Wednesday 9:00 am - 5:00 pm
  • 2445 Arthur Avenue

    Dr. Alfonso Ortiz
    Office Hours:
    Wednesday 9:00 am – 4:00 pm
    Friday 9:00 am – 5:00pm
    Alternate Saturdays 9:00 am - 12:00 pm

  • Dr. Valentine Burroughs
    Friday 9:00 am - 5:00 pm
  • 1181 Grand Concourse

    Dr. Alfonso Ortiz
    Office Hours:
    Tuesday 9:00 am - 5:00 pm

    Dr. Valentine Burroughs
    Tuesday 9:00 am - 5:00 pm
    Thursday 9:00 am - 5:00 pm