3 Best Endocrinologists in Elgin, IL

Expert-recommended Top 3 Endocrinologists in Elgin, Illinois. 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!

Amer Rahman, MD - Elgin, IL Endocrinologists
10+ YEARS IN TBR
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AMER RAHMAN, MD

ASSOCIATES IN ENDOCRINOLOGY, INC.
2400 Big Timber Lane, Suite 200B,
Elgin, IL 60124 Directions

Since 1983

Specialty:

Acromegaly Hypopituitarism Diabetes Osteoporosis Lipid Disorders Pituitary Disorders Adrenal Disorders Obesity Addison Cushing Disease Type 1 Diabetes Type 2 Diabetes Gestational Diabetes Metabolic Health Steroid Induced Diabetes

"Dr. Amer Rahman obtained his medical degree from King Edward Medical College and his residency from the Pakistan Institute of Medical Services and Cook County Hospital. He has over 45 years of experience in the field of endocrinology. He is fluent in Urdu and Punjabi. Dr. Amer Rahman is board-certified in Endocrinology, Diabetes, and Metabolism by the American Board of Internal Medicine. He currently practices at Associates in Endocrinology, Inc. and holds affiliations with Advocate Sherman Hospital, Northwestern Medicine Central DuPage Hospital, Northwestern Medicine McHenry Hospital, and Presence Saint Joseph Hospital. The clinic is a faith-based nonprofit health system.

2026 Update: Associates In Endocrinology is devoted to addressing your specific health needs, with an emphasis on personalized care to help you achieve optimal health."

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License #1114978087

Contact:

(847) 697-0770

By Appointment

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Karthik Subbu, MD - Elgin, IL Endocrinologists
Karthik Subbu, MD - Elgin, IL Endocrinologists
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KARTHIK SUBBU, MD

NORTHWESTERN MEDICINE ENDOCRINOLOGY
1600 North Randall Road, Suite 225,
Elgin, IL 60123 Directions

Since 2018

Specialty:

Adrenal Disorders Diabetes Osteoporosis Parathyroid Disease Pituitary Disorders Thyroid Disease Type 1 Diabetes Gestational Diabetes Type 2 Diabetes Diabetes Mellitus

"Dr. Karthik Subbu obtained his medical degree from Eastern Virginia Medical School in 2018 and his residency from Indiana University School of Medicine in 2021. He earned his fellowships at the University of North Carolina Hospitals in 2023. He is board-certified in Endocrinology, Diabetes & Metabolism, and Internal Medicine by the American Board of Internal Medicine. He is fluent in English and Tamil. He specializes in Endocrinology and holds affiliations with Northwestern Medicine Regional Medical Group, Northwestern Medicine Physician Network, and Delnor Hospital. Dr. Karthik Subbu currently practices at Northwestern Medicine Endocrinology Elgin and warmly welcomes new patients.

2026 Update: Northwestern Medicine Endocrinology aimed to determine how widespread the issue of uncontrolled hypertension is among patients seen in specialty clinics."

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License #1760974950

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Tiffany A. Karas, MD - Elgin, IL Endocrinologists
Tiffany A. Karas, MD - Elgin, IL Endocrinologists
10+ YEARS IN TBR
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TIFFANY A. KARAS, MD

NORTHWESTERN MEDICINE REGIONAL MEDICAL GROUP
1600 North Randall Road, Suite 225,
Elgin, IL 60123 Directions

Since 2000

Specialty:

Hyperthyroidism Addison Disease Diabetes Gland Issues Hypopituitarism Cushing Disease Hormones Acromegaly Hypothyroidism Steroid-Induced Diabetes Adrenal Disorders Growth and Development

"Dr. Tiffany A. Karas obtained her medical degree from Southern Illinois University School of Medicine and her residency and fellowship from Loyola University Medical Center. She holds board certification in Endocrinology, Diabetes & Metabolism from the American Board of Internal Medicine. She has over 25 years of experience in the medical field and holds affiliations with Northwestern Medicine Regional Medical Group, Northwestern Medicine Physician Network, and Delnor Hospital. Dr. Tiffany A. Karas specializes in endocrinology and currently practices at Northwestern Medicine Endocrinology Elgin. Northwestern Medicine's five hospitals ranked among “America’s Best,” including Northwestern Memorial Hospital, the No. 1 hospital in Illinois for 13 straight years. They improve the health of the patients and communities by delivering a broad range of services with leading medicine and compassion.

2026 Update: Dr. Karas's office accepts new patients and has telehealth appointments."

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License #1013993336

Contact:

(630) 208-6775

By Appointment

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