Summary

Dr. Grant Sievertsen has practiced endocrinology, diabetes & metabolism and internal medicine for 52 years, treating type 2 diabetes mellitus, hypertension, and diabetes type 2 in children and teens. He also performs blood tests, thyroid function panels, and thyroid-stimulating hormone (TSH) tests.

Dr. Sievertsen completed his residency at Michael Reese Hospital Medical Center and earned his medical degree from the Perelman School of Medicine at the University of Pennsylvania. He is affiliated with UChicago Medicine AdventHealth Hinsdale and Advocate Good Samaritan Hospital, and sees patients in Hinsdale and Downers Grove, Illinois. He speaks English and Spanish. Patients on Vitals rate Dr. Sievertsen 4.11 out of 5.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.1
  • 52 years of experience
  • speaks English, Spanish
  • Michael Reese Hospital Medical Center
  • 25 written reviews
  • 2 specialties
  • 12 areas of expertise
  • 2 hospital affiliations
  • 5 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Flexible scheduling

Office Locations

Dr. Grant Dean Sievertsen has 5 locations

Duly Health and Care

40 S Clay StHinsdale, IL 60521

Advocate Good Samaritan Hospital

3815 Highland AveDowners Grove, IL 60515

Clay Internal Medicine

40 S Clay St Ste 210Hinsdale, IL 60521
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 7:00 pm
Fri8:00 am - 4:00 pm
Sat8:00 am - 12:00 pm
SunClosed

Duly Health And Care Medical Group Hinsdale

40 S Clay St Ste 210Hinsdale, IL 60521
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 7:00 pm
Fri8:00 am - 4:00 pm
Sat8:00 am - 12:00 pm
SunClosed

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Dr. Grant Dean Sievertsen JR., MDDr. Oluwatomi Oluwagbemisola AsemotaDr. Rabab Zehra Jafri, MDSharon C Miller, MD
Endocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & Metabolism
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.1 
1 
5 
4.7 
52 Years of Experience 12 Years of Experience 16 Years of Experience 29 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English, Spanish Speaks English Speaks English, Hindi, Urdu Speaks English
Hinsdale , ILChicago , ILChicago , ILWest Palm Beach , FL
Med School: Perelman School Of Medicine At University Of Pennsylvania Med School: University Of Ibadan College Of Medicine Med School: Aga Khan University Medical College Med School: University of Cincinnati College of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Grant Dean Sievertsen

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Grant Dean Sievertsen has the following 2 specialties

Specialty Expertise

Dr. Grant Dean Sievertsen has the following 12 areas of expertise

  • Acromegaly
  • Addison Disease
  • Cushing Disease
  • Diabetes
  • Fatigue
  • Gland Issues
  • Hormones
  • Hyperthyroidism
  • Hypopituitarism
  • Hypothyroidism
  • Internal Medicine
  • Metabolic Disorders

Certifications, License, & Education

52 Years Experience

Dr. Grant Dean Sievertsen holds an expired medical license in the state of Illinois.

Medical License

PositionStateYearStatus
Medical DoctorIllinois2026Expired

Education & Training

Residency

Completed their residency at Michael Reese Hospital Medical Center.

Medical School

Graduated from Perelman School Of Medicine At University Of Pennsylvania in 1974.

NPI Number

Dr. Sievertsen's NPI number is 1134197619.

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Frequently Asked Questions

Is Dr. Grant Sievertsen accepting new patients?
Dr. Grant Sievertsen is accepting new patients on Vitals. View Dr. Grant Sievertsen's profile on Vitals to make an appointment.
Does Dr. Grant Sievertsen accept my insurance?
You can see the insurance plans that Dr. Grant Sievertsen accepts on their Vitals profile.
Where is Dr. Grant Sievertsen's office located?
Dr. Grant Sievertsen's office is located at 40 S Clay St, Hinsdale, IL, 60521.
What languages does Dr. Grant Sievertsen speak?
Dr. Grant Sievertsen speaks English and Spanish.
Which hospitals is Dr. Grant Sievertsen affiliated with?
Dr. Grant Sievertsen is affiliated with Uchicago Medicine Adventhealth Hinsdale and Advocate Good Samaritan Hospital.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

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