Back to Search

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

Hospitals and Organizations

  • Integrated Care Partners
  • Hartford HealthCare Medical Group
  • St Vincents Medical Center


MD Anderson Cancer Center ‐ Surgical Oncology

University of Chicago Medical Center ‐ General Surgery

Medical School
Harvard Medical School


Verified Patient Reviews

5 out of 5 stars

Very professional. Thank you!

5 out of 5 stars

She was very knowledgeable and took her time explaining procedures.

5 out of 5 stars

The Doctor was very easy to talk to. She showed empathy and understanding. I wasn't just another patient.

5 out of 5 stars

I honestly feel nothing could have made things any better than what I experienced.

5 out of 5 stars

Dr. Callender is not only an incredible surgeon, she is a wonderful person as well. She has a gift of making people feel so comfortable and confident that they are in the best hands. I certainly felt that way and can't say enough great words about her.

5 out of 5 stars

Dr Callendar did an excellent and thorough job explaining the pathology report, what each item/find meant in layman's terms and what I need to do moving forward.

5 out of 5 stars

If there was an "Excellent" option I would mark that category

5 out of 5 stars

Super thorough, very careful to go over everything, answered my questions, addressed a range of hypothetical situations - very clear!

5 out of 5 stars

Excellent, professional, kind, respectful and reassuring

5 out of 5 stars

They were very well prepared with my medical history and very thorough and efficient

5 out of 5 stars

I have been telling everyone about Dr. Callender and her practice!

5 out of 5 stars

Dr. Callender is very sweet, informed me of everything & very kindhearted. An amazing person!!!

5 out of 5 stars

Dr, Callender spent a lot of time to make sure I understood why she recommended surgery and answered my questions with information and clarity. It was a pleasure meeting her.

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.

Other Reviews from Around the Web

5 out of 5 stars

What began as a scary experience to have to undergo turned into a very pleasant one with Dr Callender. I found her to be very knowledgeable, thorough, clear, concise, confident, and kind. I would highly recommend her to be your surgeon. The complete office staff was on top of their game too which is so hard to find lately.

5 out of 5 stars

Upon being diagnosed with Hyperparathyroidism I was referred to Dr. Callender through physicians and friends. Surgery is the best treatment as I learned for this condition. I could not have received better care than I did from Dr. Callender who met my anxiety and trepidation with knowledge and compassion at every step of the way including holding my hand as I underwent the anesthesia for surgery...something I needed.

5 out of 5 stars

Extraordinary person and care

5 out of 5 stars

Dr. Calendar is a very knowledgeable doctor and a fabulous surgeon. She accurately diagnosed a thyroid/parathyroid disorder that several endocrinologists completely missed. Surgery didn't leave a scar whatsoever.

5 out of 5 stars

Dr. Callendar performed a highly successful surgery on me. She did a great job!


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

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.