


Dr. Charles Longo III, MD
Dr. Charles Longo III, MD is a diabetes & metabolism endocrinologist in Sioux Falls, SD and has over 15 years of experience in the medical field. Dr. Longo III has extensive experience in Fertility Related Endocrine Disorders, Thyroid Disorders, and Diabetes & Glucose Monitoring. He graduated from University of Iowa in 2005. He is affiliated with medical facilities such as Avera McKennan Hospital and University Health Center and Avera Sacred Heart Hospital. He is accepting new patients and telehealth appointments.
Practice
1315 S Cliff Ave Ste 3000 Sioux Falls, SD 57105Make an Appointment
Hospital Highlight
Dr. Longo III is affiliated with Avera McKennan Hospital and University Health Center Sioux Falls, a highly rated and top awarded hospital for endocrinology, diabetes & metabolism.
At a Glance
- Areas of ExpertiseDr. Longo III specializes in the areas of Diabetes, Metabolism & Endocrinology & Internal Medicine. • See board certifications
- Explains Conditions Well
- Offers TelehealthThis doctor offers telehealth appointments. Call the office to schedule an appointment.
- Practices at Top Hospital

Our customers save an overage of $145 on prescriptions
Experience Check
Search for experience in a specific area
Insurance Check
Search for your insurance carrier and choose your plan type
Dr. Longo III's Reviews
Likelihood to recommend Dr. Longo III
5 star | 67% | 67% |
4 star | 33% | 33% |
3 star | 0% | 0% |
2 star | 0% | 0% |
1 star | 0% | 0% |
Overall Patient Satisfaction
Likelihood of recommending Dr. Longo III to family and friends is 4.6666665 out of 5
About Me
biography
Dr. Charles Longo III, MD is a diabetes & metabolism endocrinologist in Sioux Falls, SD and has over 15 years of experience in the medical field. Dr. Longo III has extensive experience in Fertility Related Endocrine Disorders, Thyroid Disorders,...read moreEndocrinology, Diabetes & Metabolism
Internal Medicine
*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
University Of Iowa
Medical School, 2005
Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.
Learn more about medical license public record checkFocus on Thyroid Eye Disease
Locations
Practice
Practice
Practice
Affiliated Hospitals
- View all patient feedback
How patients felt about the care they received at this hospital.
90%Patients said they were given information about recovering at home2% higher than the national average
87%Patients said that nurses always listened to them and explained things well5% higher than the national average
- Recipient of 11
hospital awardsAmerica’s 100 Best Hospitals for Critical Care Award™ (2025)
Superior clinical outcomes in treating pulmonary embolism, respiratory system failure, sepsis, and diabetic emergencies
View all awardsAmerica's 250 Best Hospitals Award™ (2025, 2024)
Superior clinical outcomes in treating pulmonary embolism, respiratory system failure, sepsis, and diabetic emergencies
View all patient feedbackHow patients felt about the care they received at this hospital.
89%Patients said they were given information about recovering at home5% higher than the national average
78%Patients said that nurses always listened to them and explained things well3% higher than the national average
- Recipient of 1
hospital awardView all awardsOutstanding Patient Experience Award™ (2023)
Top in the nation for overall patient experience based on nine measures related to doctor and nurse communication, hospital cleanliness and noise levels, and medication and post-discharge care instructions
View all patient feedbackHow patients felt about the care they received at this hospital.
88%Patients said they were given information about recovering at home4% higher than the national average
79%Patients said that doctors always listened to them and explained things well3% higher than the national average
Compare Providers
Providers shown based on Dr. Longo III's location and specialty. Show more Diabetes, Metabolism & Endocrinologists.
Leave a review
How was your experience with Dr. Longo III?