Address: 1705 S. Adams Street Tallahassee, FL 32301 View Map
Phone: (850) 224-7154

About Us

We are a general endocrinology clinic and have been serving the Tallahassee, Florida area for more than 20 years. Each of our three providers has more than 20 years of experience in treating endocrine disorders. We pride ourselves on providing quality, comprehensive care.

We treat patients with the entire spectrum of endocrine disorders - diabetes mellitus, hypertension, lipid disorders, obesity, disorders of the thyroid function, thyroid nodules and thyroid cancer, metabollic bone disease, reproductive disorders, parathyroid disease and other disorders of calcium metabolism, and pituitary disorders. Many of our patients have complex combinations of these and we manage each. We believe that this holistic approach yields the best clinical outcome.

Meet Our Team


Dr. Celeste B. Hart is a Tallahassee native. She received her undergraduate degree in mathematics from Princeton University and the MD degree from Howard University College of Medicine (HUCM).  Her subspecialty training in endocrinology was at the National Institutes of Health where she matriculated in the Diabetes Branch.

She served on the faculty at HUCM from 1986-1991 as graduate assistant professor of physiology and director of the Endocrinology Research Laboratory. 

In 1991 she began her practice here in Tallahassee where she also serves as a co-medical director of the Tallahassee Memorial Hospital Diabetes Center.

She is a member of the Endocrine Society, the American Association of Clinical Endocrinologists, the American Thyroid Association and the American Diabetes Association.  She also serves on the Florida Diabetes Advisory Council.

She enjoys mentoring pre medical students and is currently clinical coordinator for the Florida Alliance Scholars program which provides summer  clinical research opportunities for undergraduate students.

She is the proud mother of a son, Adam.

Dr. Luz Prieto-Sanchez
Dr. Luz Prieto-Sanchez was born in Colombia, received her Medical degree from The Pontifical-Xaveriana University in Bogota. She completed training in Internal Medicine in Colombia in 1981 and an Endocrinology fellowship at Jackson Memorial Hospital, Miami, Florida. She joined the University of Miami- Diabetes Research Institute in 2001 working as a faculty member with the Endocrinology, Diabetes and Metabolism Division until 2011 when she relocated to Tallahassee to begin private practice at North Florida Regional Thyroid Center.

As a faculty member of the Miller School of Medicine she served as director of the Endocrine Clinic at Jackson Memorial Hospital 2007-2011 and Director of In-patient Glycemic Control Program. Dr Prieto is a frequent lecturer and has participated in mentoring residents and fellows during her career. Dr. Prieto-Sanchez is a member of the Endocrine Society, American Diabetes Association and American Association of Clinical Endocrinologists.


Robin Byrd is an Advanced Registered Nurse Practitioner who received her undergraduate degree in nursing from Florida A & M University (FAMU).   She earned a Master's Degree in Family Health Nursing from Florida State University.  She is a Certified Diabetes Educator (CDE) and a Certified Nurse Practitioner in Advanced Diabetes Management.

She  has worked in various roles as a professional registered nurse with experience in inpatient diabetes management, inpatient psychiatric care, and oncology.  She has also served as an adjunct faculty member for the Florida A & M University school of nursing.

In 2002, she began her career as  a nurse practitioner with the North Florida Regional Thyroid Center.

She is a board member of the Florida A & M University school  of nursing and is member of the local Advanced Practice Council of nurse practitioners.

She is the proud mother of a son, Austin.


Conditions treated at this office:    

  • Hypothyroidism
  • Hyperthyroidism
  • Goiter and thyroid nodules
  • Thyroid Cancer
  • Primary and secondary Hyperparathyroidism
  • Diabetes
  • Gender Identity Disorder (by referral only)


  • TSH and FT4, Cortisol and PTH
  • Thyroid Ultrasound and Fine needle aspiration biopsy
  • Nuclear Medicine
  • Radioactive Iodine (RAI)treatment for Hyperthyroidism

Thyroid and Parathyroid Services

Our team offers expert comprehensive and efficient care for patients with thyroid and parathyroid diseases following state of the art evidence based protocols of treatment.

We provide specialized laboratory evaluation in house with quick results available same day, enabling doctors to timely implement treatment decisions.

The ultrasound and fine needle aspiration biopsy for thyroid and parathyroid disorders are performed personally by the doctor in house avoiding multiple steps and clinic visits for diagnosis process with great convenience for patients.
What we offer if you have osteoporosis

For patients with osteoporosis we offer a comprehensive assessment of your risk bone fractures due to osteoporosis.  We will evaluate the possibility of hormonal disorders, vitamin deficiencies and lifestyle matters that may impact this risk and examine ways in which medicines you are on and other health conditions you may have may be impacting the health of your bones.  If indicated, we will work with you to institute a program for fracture prevention.

What we offer patients with pituitary disorders

Patients who have problems which result from  abnormal function of the pituitary gland often suffer for years before an accurate diagnosis is made.  This is in part because pituitary disorders evolve very slowly.  In addition, laboratory tests of pituitary function can be difficult to interpret.  If your pituitary has tested abnormally on laboratory evaluation or has been found to have an abnormal appearance on a CT scan or MRI, consult us for a full evaluation before planning therapy.