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Callender, Glenda Grace, MD, FACS





Providing the best care to our patients and their companions requires communicating in a way everyone understands. Interpreter services are available 24 hours a day, 7 days a week, 365 days a year. All spoken languages are available, as well as American Sign Language (AS/L).

Accepting New Patients
  • Surgical Oncology
  • Endocrine Surgery

Areas of Expertise
Adrenal Disease, Minimally Invasive Parathyroidectomy, Parathyroid Disease, Thyroid Diseases, Thyroidectomy


MD Anderson Cancer Center
MD Anderson Cancer Center

University of Chicago Medical Center

Medical School
Harvard Medical School

University of Chicago Medical Center

Professional Organizations

  • New England Surgical Society, Member
  • International Association of Endocrine Surgeons, Member
  • American College of Surgeons, Fellow
  • American Association of Endocrine Surgeons, Member
  • Society of Surgical Oncology, Member


Verified Patient Reviews

5 out of 5 stars

*Dr. Callender was kind and friendly in explaining the treatment necessary for my thyroid nodule. Her professionalism yet personable delivery made me feel comfortable and safe in her care.

5 out of 5 stars

*Dr. Callender is very knowledgeable, professional, empathetic and truly a great surgeon.

5 out of 5 stars

*Dr. Callender was very thorough addressed all my concerns and answered all my questions. Told me I could call with any further questions.

5 out of 5 stars

Doctor was so helpful & I feel safe with her & her plan of action.

5 out of 5 stars

All of my questions were answered, the provider was warm and welcoming, so pleasant and knowledgeable. I did not feel rushed or not understanding the purpose and treatment

5 out of 5 stars

The doctor was great all the nurses were friendly.

5 out of 5 stars

*Dr. Callender was excellent in explaining every detail about my upcoming surgery. She was extremely thorough, friendly and kind. I am so happy she was recommended to me and that I am in good hands.

5 out of 5 stars

*Dr. Callender was very thorough with her explanations and provided satisfactory answers to all my inquires. Would highly recommend her without any reservations.

5 out of 5 stars

*Dr. Callender is a caring, personable, and friendly doctor. She is intelligent, extremely knowledgeable and confident! I feel she gave me lots of time to answer my questions, and is a wonderful doctor!

5 out of 5 stars

Amazing, caring & thorough doctor.

Other Reviews from Around the Web

5 out of 5 stars

The experience with this Dr's team was exceptional. From the signing in to actually seeing the Dr. They took their time to explain any questions that I had.

5 out of 5 stars

An amazing staff for a knowledgeable and caring doctor! On time and explained EVERYTHING and in a way i could understand..Highly recommend!!!


Dr. Glenda Callender is one of two fellowship-trained endocrine surgeons with the Hartford HealthCare Cancer Institute, working at St. Vincent’s Medical Center in Bridgeport.

Coming to Hartford HealthCare from Trinity Health of New England, Dr. Callender is a high-volume endocrine surgeon with more than 10 years’ experience.

Dr. Callender’s clinical areas of interest include: all types of thyroid surgery, particularly for advanced or recurrent thyroid cancers; parathyroid surgery including minimally-invasive parathyroidectomy and reoperative parathyroidectomy; and adrenal surgery for benign nodules or adrenal cancers, including posterior retroperitoneoscopic adrenalectomy.

She has also been very active in the field of academic surgery, previously serving as associate professor in the Department of Surgery at Yale University, where she was the director of endocrine surgical oncology clinical trials for six years. She is a widely-published and sought-after speaker in her field, and has participated in a variety of clinical research trials.

She earned her undergraduate degree from the University of Pennsylvania, where she was elected to Phi Beta Kappa, and her medical degree from Harvard Medical School. She completed internship and residency in general surgery at the University of Chicago Medical Center, where she served as administrative chief resident in her final year. She also completed fellowships in endocrine surgery and surgical oncology at MD Anderson Cancer Center in Houston, Texas, earning a clinical excellence award and mid-level providers’ appreciation award.

Dr. Callender’s research has included new treatments for thyroid cancer, endocrine surgical oncology outcomes and genetic studies of endocrine tumors.

She is board-certified by the American Board of Surgery, and is a member of the American College of Surgeons, American Association of Endocrine Surgeons, International Association of Endocrine Surgeons, Society of Surgical Oncology, and New England Surgical Society. She has served as a reviewer for articles submitted to a variety of professional journals, including World Journal of Surgery, Surgery, Journal of the American College of Surgeons and Annals of Surgical Oncology.



Aetna, Anthem, BCBS Medicare, CarePartners of Connecticut, Cigna Healthcare, Colonial Cooperative Care, Community Health Network of Connecticut, Inc., Connecticare, Connecticare Commercial, Connecticare Medicare, Corvel, Coventry, Essence Healthcare, Evercare, First Health Group Corp., Focus, Health Connecticut, Health Direct, Health New England, Healthy Connecticut, HMC/ Northeast Healthcare, Medspan Commercial, Medspan Medicare, Multiplan, Northeast Health Direct, One Health Plan/ Great-West Healthcare, Oxford Health Plans, Prime Health Services, Private Health Care Systems, Inc., Senior Whole Health, United Healthcare, WellCare of Connecticut, Inc.

This information is subject to change at any time. Please check with your insurance provider before scheduling your appointment or receiving services to confirm they are a participating member of the Hartford HealthCare network.