Dr. Sathya Subbiah, MD | Mattoon, IL | Endocrinology

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Dr. Sathya Subbiah specializes in endocrinology, diabetes, and metabolism, focusing on hormone-related conditions and blood sugar management. She earned her medical degree from Madurai Medical College in India and completed her residency at the University of Illinois at Urbana-Champaign. Dr. Subbiah furthered her training with a fellowship at the University of Illinois, Chicago, where she developed expertise in treating complex endocrine disorders. She holds board certification in internal medicine from the American Board of Internal Medicine and speaks English.

Dr. Subbiah practices at OSF Heart of Mary Medical Center and sees patients in Mattoon, Illinois. She treats patients with type 2 diabetes and helps manage high blood sugar in children. Her expertise includes handling hyperglycemic emergencies when blood sugar levels become dangerously high. Dr. Subbiah performs continuous glucose monitoring to help patients track their blood sugar patterns and conducts thyroid hormone tests …to evaluate thyroid function. Patients give her an average rating of 4.3 out of 5 stars.

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4.3

9 Ratings
28 insurance plans accepted
speaks English
University of Illinois, Chicago, IL
7 written reviews
1 specialty
16 areas of expertise
2 board certifications
1 hospital affiliation
1 office location
Female

9 ratings & reviews

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Showing 1 to 7 of 7 reviews

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Didn't introduce herself

March 24th, 2026 | Source: Partner

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Good

March 10th, 2026 | Source: Partner

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Very good

September 25th, 2025 | Source: Partner

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Dr Subbiah was excellent spent a lot time with me as this was my first appointment with a new physician that wasn't a part of my cancer diagnosis and treatment. I was able to pull up my medical records through my previous provider's EMR and she navigated through it and she was able to get most of my information. There was some information she wasn't able to find and her office has been working very hard to get that data and have been religious in their follow up. Sure puts a patient at ease knowing that the physician is going to that length to get what she needs to provide me with the best possible care. She is definitely a keeper!!!

September 25th, 2025 | Source: Partner

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Very well pleased

May 1st, 2025 | Source: Partner

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Had been told for three year my goiter had not increased in size after viewing my sonograms. Found that it had been growing via ct scan for something unrelated. When I returned for my annual visit a month later she did not order ct scan to see how much it was growing, she just ordered my routine sonogram. Had to request a ct. Goiter was huge and needed removed by a skilled surgeon in Chicago. If I had known all along it was growing that much I would have had it out longer ago.

January 9th, 2019

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Seriously, PLEASE AVOID AT ALL COSTS. I would not at all be surprised if Dr. Subbiah accidentally or negligently maimed or injured someone one day. Sadly, she is the only Tier 1 endocrinologist in the network within an hour drive one-way. I have always thought endocrinology is complex & difficult, but this doctor makes no sense whatsoever even by her own standards & definitions. She ignores valuable medical history & is wholly unable / maybe unwilling to construct a differential diagnosis. In addition, she does completely illogical things (not adhering to valuable medical standards & guidelines) that waste your & your insurance company's money -- for example, ordering a specific blood test to be drawn first thing in the morning that even the lab tech and general medical opinion agree should only be performed later in the day. Honestly, I have respect for anyone who can endure Med School, but this is clearly a sadly mistaken career path.

March 26th, 2016

SBL Family Medical Center

200 Richmond Ave EMattoon, IL 61938

Tel: (217) 234-7000

Mon8:00 am - 5:00 pm

Tue8:00 am - 5:00 pm

Wed8:00 am - 5:00 pm

Thu8:00 am - 5:00 pm

Fri8:00 am - 5:00 pm

SatClosed

SunClosed


Dr. Sathya Subbiah, MD	Dr. Rabab Zehra Jafri, MD	Dr. Safa Hammami	Dr. Oluwatomi Oluwagbemisola Asemota
Endocrinology, Diabetes & Metabolism	Endocrinology, Diabetes & Metabolism	Endocrinology, Diabetes & Metabolism	Endocrinology, Diabetes & Metabolism
	Accepts New Patients	Accepts New Patients	Accepts New Patients
4.3 (9 Ratings)	5 (3 Ratings)	0 (0 Ratings)	0 (0 Ratings)
	16 Years of Experience	11 Years of Experience	12 Years of Experience
No Virtual Visit Option	Virtual Visit Available	Virtual Visit Available	Virtual Visit Available
Speaks English	Speaks English, Hindi, Urdu		Speaks English
Mattoon , IL	CHICAGO , IL	CHICAGO , IL	CHICAGO , IL
Med School: Madurai Medical College, India (Medical Education)	Med School: Aga Khan University Medical College	Med School: Jordan University Of Science And Technology Faculty Of Medicine	Med School: University Of Ibadan College Of Medicine
Current Profile	View Profile	View Profile	View Profile

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Endocrinology, Diabetes & Metabolism

Acromegaly
Addison Disease
Adrenal Gland Diseases
Cushing Disease
Diabetes
Diabetes Mellitus, Type 1
Diabetes, Type 2
Fatigue
Gland Issues
Hormones
Hyperthyroidism
Hypopituitarism
Hypothyroidism
Menopause
Polycystic Ovary Syndrome (PCOS)
Pregnancy Complications

BOARD CERTIFICATIONS

American Board of Internal Medicine

Internal medicine

MEDICAL LICENSE

Medical Doctor, Illinois, 2026, Active

EDUCATION & TRAINING

Fellowship

University of Illinois, Chicago, IL

Residency

University of Illinois at Urbana-Champaign, Urbana, IL

Medical School

Madurai Medical College, India (Medical Education)

Dr. Kingsley Uchenna Onyemere, MD
Endocrinology, Diabetes & Metabolism
38 Years Exp | Champaign, IL
(2)
Hannah Dukeman, APRN
Endocrinology, Diabetes & Metabolism
| Mattoon, IL
(10)
Dr. Owaise Mohammed Yusuf Mansuri, MD
Endocrinology, Diabetes & Metabolism
19 Years Exp | Champaign, IL
(4)

Does Dr. Sathya Subbiah accept my insurance?: You can see the insurance plans that Dr. Sathya Subbiah accepts on their Vitals profile.
Where is Dr. Sathya Subbiah's office located?: Dr. Sathya Subbiah's office is located at 200 Richmond Ave E, Mattoon, IL, 61938.
Is Dr. Sathya Subbiah accepting new patients?: Dr. Sathya Subbiah has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. Sathya Subbiah?: You can find contact information for Dr. Sathya Subbiah here on Vitals.
Does Dr. Sathya Subbiah accept virtual/telehealth appointments?: Dr. Sathya Subbiah has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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