3 Best Endocrinologists in Sioux Falls, SD

Expert-recommended Top 3 Endocrinologists in Sioux Falls, South Dakota. All of our endocrinologists actually face a rigorous 50-Point Inspection, which includes customer reviews, history, complaints, ratings, satisfaction, trust, cost and general excellence. You deserve only the best!

10+ YEARS IN TBR

RICHARD CRAWFORD, MD

AVERA ENDOCRINOLOGY & DIABETES DAWLEY FARM
1600 South Highline Avenue, Suite 310,
Sioux Falls, SD 57110 Directions

Since 1991

Specialty:

Addison's Disease Secondary Adrenal Insufficiency Triple A Syndrome Type 1 Diabetes (T1D) Type 2 Diabetes (T2D) Adrenocorticotropic Hormone (ACTH) Deficiency Pediatric Adrenal Insufficiency Diabetic Neuropathy Familial Glucocorticoid Deficiency Glucocorticoid Resistance Graves' Disease Hyperthyroidism Hypoaldosteronism Hypothyroidism Maturity Onset Diabetes of the Young Obesity in Children Osteoporosis Postmenopausal Osteoporosis Prolactinoma Thyroid Nodule Thyroid Storm Vitamin D Deficiency

" Dr. Richard Crawford earned his degree from the University of Illinois, Chicago, and completed his residency in internal medicine at the University of Minnesota Hospitals & Clinics, followed by a fellowship in endocrinology at the University of Washington. Dr. Richard specializes in treating a range of diabetes, hormonal, and thyroid disorders, and he is affiliated with several healthcare systems, including Lakes Regional Healthcare, Avera St. Luke's, Brookings Health System, Avera Queen of Peace, and Avera McKennan Hospital & University Health Center. Dr. Richard Crawford practices at Avera Medical Group Endocrinology & Diabetes in Dawley Farm and is currently accepting new patients.

2026 Highlights: Dr. Richard Crawford's clinical experience and focus on personalized care help patients effectively manage complex endocrine conditions and improve their overall health. "

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License #8339

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Brandon Allard, MD - Sioux Falls, SD Endocrinologists - Doctor Portrait Image
Brandon Allard, MD - Sioux Falls, SD Endocrinologists - Clinic Logo
11+ YEARS IN TBR
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BRANDON ALLARD, MD

SANFORD DIABETES & THYROID CLINIC
1305 West 18th Street,
Sioux Falls, SD 57117 Directions

Since 1997

Specialty:

Adrenal Disease Pituitary Disease Thyroid Disease Metabolic Bone Disease and Osteoporosis Hyperlipidemia Diabetes Physical Exams Laboratory and Diagnostic Testing Medication Prescribing DEXA Scan Interpretation Insulin Pump and Glucose Meter Data Interpretation Continuous Glucose Monitor Interpretation

" Dr. Brandon Allard, a board-certified endocrinologist and metabolism specialist, is widely recognized as one of the best practitioners in Sioux Falls, South Dakota. He completed his medical education at the University of Minnesota Medical School and his residency in internal medicine at Abbott Northwestern Hospital. Dr. Brandon's area of expertise includes endocrinology, metabolism, and internal medicine. To ensure that his patients receive appropriate medical care, Dr. Brandon first obtains their medical history, performs physical exams, and interprets lab and diagnostic tests before prescribing any medication. Dr. Brandon Allard currently practices at Sanford Diabetes & Thyroid Clinic in Sioux Falls.

2026 Highlights: Dr. Brandon Allard takes a thorough, patient-centered approach, reviewing medical histories, conducting physical examinations, and evaluating laboratory and diagnostic results to develop appropriate treatment plans. "

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License #5394

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(605) 328-8700

Mon-Thu: 8am - 5pm
Fri: 8am - 12pm
Sat & Sun: Closed

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Charles A. Longo III, MD - Sioux Falls, SD Endocrinologists - Doctor Portrait Image
Charles A. Longo III, MD - Sioux Falls, SD Endocrinologists - Hospital Logo
3+ YEARS IN TBR

CHARLES A. LONGO III, MD

AVERA MEDICAL GROUP ENDOCRINOLOGY & DIABETES DAWLEY FARM
1600 South Highline Avenue, Suite 310,
Sioux Falls, SD 57110 Directions

Since 2005

Specialty:

Hyperparathyroidism Osteitis Fibrosa Parathyroid Hyperplasia Type 1 Diabetes (T1D) Type 2 Diabetes (T2D) Acromegaly Addison's Disease Adrenal Cancer Pediatric Adrenal Insufficiency Anaplastic Thyroid Cancer Follicular Thyroid Cancer Gigantism Graves' Disease Growth Hormone Deficiency (GHD) Hereditary Paraganglioma-Pheochromocytoma Syndrome Hypogonadism Hypogonadotropic Hypogonadism Hypopituitarism Hypothyroidism Isolated Hypogonadotropic Hypogonadism Kallmann Syndrome Maturity Onset Diabetes of the Young Medullary Thyroid Carcinoma Obesity in Children Panhypopituitarism Papillary Thyroid Cancer

" Charles A. Longo III earned his medical degree from the University of Iowa College of Medicine, Iowa City, and subsequently completed his Fellowship at the University of Nebraska Medical Center, along with his residency in Internal Medicine at the Des Moines Internal Medicine Residency Program. He is also certified by the American Board of Internal Medicine, American Board of Internal Medicine. Endocrinology, Diabetes & Metabolism. With more than 18 years of experience in the medical field, he is associated with prestigious medical facilities such as Avera Gregory Hospital, Avera McKennan Hospital and University Health Center, and is open to new patients. One of his commendable qualities is his dedication to staying abreast of the latest scientific advancements in his field to provide optimal treatment and post-treatment care for his patients.

2026 Highlights: Charles A. Longo III has been serving in the field of medicine for over 21 years. He provides comprehensive care for patients with diabetes, hormonal disorders, and metabolic conditions. "

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License #5192

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