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Endocrinology, Diabetes and Metabolism

Doctors + Care Team

The endocrinologists in the Division of Endocrinology, Diabetes and Metabolism at Tufts Medical Center in downtown Boston provide the highest standards of care for patients with endocrine disorders. 

Our team is made up of specialists who are dedicated to providing this exemplary care with compassion and expertise. Our Chief, Ronald M. Lechan, MD is consistently ranked as one of the Top Doctors in the country by U.S. News and World Report.

Doctors + Care Team

Ronald M. Lechan, MD, PhD
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Ronald M. Lechan, MD, PhD

Title(s): Chief, Division of Endocrinology, Diabetes and Metabolism; Director, Hypothalamic and Pituitary Disease Center; Professor, Tufts University School of Medicine
Department(s): Medicine, Endocrinology, Diabetes and Metabolism
Appt. Phone: 617-636-5689
Fax #: 617-636-4719

Hypothalamic disease, pituitary disease, disorders of the thyroid, adrenal disease, islet cell tumors

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Lisa Ceglia, MD
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Lisa Ceglia, MD

Title(s): Director, Metabolic Bone Diseases Clinic; Assistant Professor, Tufts University School of Medicine
Department(s): Medicine, Endocrinology, Diabetes and Metabolism
Appt. Phone: 617-636-5689
Fax #: 617-636-4719

Metabolic bone disease, nutrition, general endocrinology

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Michael L. Dansinger, MD, MS

Michael L. Dansinger, MD, MS

Title(s): Internist; Staff Member, Division of Endocrinology, Diabetes and Metabolism; Director, Lifestyle Coaching for Diabetes Weight Loss; Assistant Professor, Tufts University School of Medicine
Department(s): Medicine, Endocrinology, Diabetes and Metabolism
Appt. Phone: 617-636-5689
Fax #: 617-636-8107

Lifestyle management of diabetes, heart disease risk factors, obesity, internal medicine

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Bess F. Dawson-Hughes, MD

Bess F. Dawson-Hughes, MD

Title(s): Endocrinologist; Professor, Tufts University School of Medicine; Chief, Calcium and Bone Metabolism Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University
Department(s): Medicine, Endocrinology, Diabetes and Metabolism
Appt. Phone: 617-556-3066
Fax #:

Metabolic bone disease, calcium and vitamin D nutrition, prevention and treatment of osteoporosis

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Andrew S. Greenberg, MD

Andrew S. Greenberg, MD

Title(s): Endocrinologist; Dr. Robert and Veronica Atkins Professor in Metabolism and Nutrition, Tufts University School of Medicine
Department(s): Medicine, Clinical Nutrition, Endocrinology, Diabetes and Metabolism
Appt. Phone: 617-556-3144
Fax #: 617-556-3224

Obesity, lipid disorders, diabetes, general endocrinology

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Jacqueline T. Kung, MD

Jacqueline T. Kung, MD

Title(s): Director, Thyroid Disease Clinic; Endocrinologist; Assistant Professor, Tufts University School of Medicine
Department(s): Medicine, Endocrinology, Diabetes and Metabolism
Appt. Phone: 617-636-5689
Fax #: 617-636-8187

Thyroid disease, neck ultrasound, thyroid nodules, thyroid cancer, thyroid fine needle aspiration biopsy

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Anastassios G. Pittas, MD, MS

Anastassios G. Pittas, MD, MS

Title(s): Co-Director, Diabetes and Lipid Center; Professor, Tufts University School of Medicine
Department(s): Medicine, Endocrinology, Diabetes and Metabolism
Appt. Phone: 617-636-5689
Fax #: 617-636-4719

Endocrinology, diabetes, pre-diabetes, vitamin D deficiency

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Aruna A. Saraswat, MD

Aruna A. Saraswat, MD

Title(s): Endocrinologist; Assistant Professor, Tufts University School of Medicine
Department(s): Medicine, Endocrinology, Diabetes and Metabolism
Appt. Phone: 617-636-5689
Fax #: 617-636-4719

Thyroid disease, diabetes, general endocrinology

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Richard D. Siegel, MD
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Richard D. Siegel, MD

Title(s): Co-Director, Diabetes and Lipid Center; Endocrinologist; Associate Professor, Tufts University School of Medicine
Department(s): Medicine, Clinical Nutrition, Endocrinology, Diabetes and Metabolism
Appt. Phone: 617-636-5689
Fax #: 617-636-4719

Diabetes, obesity, inpatient and outpatient diabetes, general endocrinology

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Care Team

Mary Wenners, NP
Paula Dabenigno, RN, CDE

Adjunct Staff and Researchers

Roberto Toni, MD, PhD
Csaba Fekete, MD, PhD
Jeffrey Tatro, PhD 


Call Us
617-636-5689