Dr. Theofanis Mitsinikos, DO | Stony Brook, NY | Endocrinology

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Dr. Theofanis Mitsinikos is an endocrinologist specializing in diabetes and metabolism, with additional training in internal medicine. He earned his medical degree from New York Institute of Technology College of Osteopathic Medicine and brings 23 years of experience to his practice. Dr. Mitsinikos provides care in English for patients with complex hormonal and metabolic conditions.

Dr. Mitsinikos practices at multiple locations throughout Stony Brook and Smithtown, New York, with affiliations at Saint Catherine of Siena Medical Center and Saint Johns Episcopal Hospital South Shore. He focuses on treating patients with hypothyroidism and Type 2 diabetes, including children and teenagers with diabetes. His diagnostic approach includes comprehensive blood work such as complete blood counts and metabolic panels to monitor patient health. Patients rate Dr. Mitsinikos 4.0 out of 5 stars for his care.

AI-generated from data on this provider profile.

accepting new patients
4

16 Ratings
23 years of experience
56 insurance plans accepted
speaks English
New York Institute Of Technology College Of Osteopathic Medicine
6 written reviews
2 specialties
17 areas of expertise
2 board certifications
2 hospital affiliations
3 office locations
Male

16 ratings & reviews

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Showing 1 to 6 of 6 reviews

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Took 6 months to see me. I had to cancel on first appoint the last minute because I became extremely ill at that time. I expressed pain on my lower quarter back. I was concerned about if it was my kidney. I told him how I had a history of kidney stones and the last sonogram showed a slight anomaly on my renal gland. That was about 15 years ago and he told me go find the report and then come back. Why he didn’t want a new sonogram is what really caused me to believe he didn’t really listen to my history and didn’t seem to care. After seeing him I felt my friends had more to say than he.

September 13th, 2019

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Every time I go for blood work it seems like he order more than when I donate! Very knowledgeable, very thorough and easy to talk to. I feel very confident in his diagnosis and recommendations.

March 30th, 2019

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Dr.Mitsinikos listens to Dr. Mitsinikos. I tried several times to get him to increase my meds but he refused. Finally after feeling like crap for so long I went elsewhere and found a doctor who would listen. I,m feeling much better as a result. I have no patience for a doctor who won,t listen. After 32 years with thyroid issues I know what my body needs.

March 5th, 2019

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Have been see him a few years Doctor and MA are excellent. Make you very comfortable and cares. As a RN for 38 year and now sick I'm not finding that. I'm very comfortable with his professionalism.. Office staff is also very helpful.

May 30th, 2018

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Dr Mitsinikos is thorough and knowledgeable! He made me feel comfortable and is easy to talk to.

February 25th, 2016

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He help u 100% listen to his patient and asks question

February 20th, 2016

Sound Endocrinology Pllc

2500 Nesconset Hwy Bldg 3CStony Brook, NY 11790

Tel: (631) 751-2400

Mon8:00 am - 5:00 pm

Tue9:00 am - 7:00 pm

Wed8:00 am - 5:00 pm

Thu8:00 am - 4:00 pm

Fri8:00 am - 4:00 pm

SatClosed

SunClosed

Stony Brook University Hospital

101 Nicolls RdStony Brook, NY 11794

Tel: (631) 689-8333

Saint Catherine Of Siena Medical Center

50 Route 25aSmithtown, NY 11787

Tel: (631) 862-3000


Dr. Theofanis Mitsinikos, DO	Dr. Gabrielle Paula Grinstein, MD	Dr. Dmitry Konsky, DO	Dr. Erin Mauricia Dainer, MD
Endocrinology, Diabetes & Metabolism	Endocrinology, Diabetes & Metabolism	Hospital Medicine	Psychiatry
Accepts New Patients	Accepts New Patients		Accepts New Patients
4 (16 Ratings)	4.9 (16 Ratings)	5 (2 Ratings)	5 (2 Ratings)
23 Years of Experience	32 Years of Experience	26 Years of Experience	16 Years of Experience
No Virtual Visit Option	Virtual Visit Available	No Virtual Visit Option	No Virtual Visit Option
Speaks English	Speaks English, Spanish
Stony Brook , NY	New York , NY	Oceanside , NY	Port Jefferson , NY
Med School: New York Institute Of Technology College Of Osteopathic Medicine	Med School: Universidad De Buenos Aires	Med School: New York Institute Of Technology College Of Osteopathic Medicine	Med School: Medical College Of Georgia At Augusta University
Current Profile	View Profile	View Profile	View Profile

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Acromegaly
Addison Disease
Cushing Disease
Diabetes
Diabetes (Types I & II)
Diabetes Mellitus, Type 1
Diabetes, Type 2
Fatigue
Gland Issues
Hormones
Hyperthyroidism
Hypopituitarism
Hypothyroidism
Internal Medicine
Pituitary Diseases
Thyroid Diseases
Weight Loss

MEDICAL LICENSE

Doctor Of Osteopathy, New York, 2026, Active

EDUCATION & TRAINING

Medical School

New York Institute Of Technology College Of Osteopathic MedicineGraduated in 2003

Diane M Grassi
Nurse Practitioner
| Manhasset, NY
(0)
Joan Marjorie Hainsley-Jones
Nurse Practitioner
| STONY BROOK, NY
(0)
Dr. Davida Yaffa Goltz, MD
Vascular Neurology
12 Years Exp | Plainview, NY
(0)
Dr. Robert Ai-Fung Chow, MD
Infectious Disease
14 Years Exp | Bay Shore, NY
(0)
Dr. Abdul Qadeer
Hospital Medicine
20 Years Exp | Stony Brook, NY
(0)
Dr. Tejas Patel, MD
Psychiatry
16 Years Exp | Stony Brook, NY
(0)
Dr. Christopher Rene Tanchez, DO
Hospital Medicine
| Port Jefferson, NY
(0)
Dr. Samuel Fenner, MD
Anesthesiology
39 Years Exp | New York, NY
(0)
Dr. Scott Alan Horowitz, MD
Infectious Disease
26 Years Exp | Smithtown, NY
(6)
Dr. Anthony George Maratea, MD
Anesthesiology
40 Years Exp | MELVILLE, NY
(0)

Which hospitals is Dr. Theofanis Mitsinikos affiliated with?: Dr. Theofanis Mitsinikos is affiliated with Saint Catherine Of Siena Medical Center and Saint Johns Episcopal Hospital South Shore.
Does Dr. Theofanis Mitsinikos accept my insurance?: You can see the insurance plans that Dr. Theofanis Mitsinikos accepts on their Vitals profile.
What languages does Dr. Theofanis Mitsinikos speak?: Dr. Theofanis Mitsinikos speaks English.
Is Dr. Theofanis Mitsinikos accepting new patients?: Dr. Theofanis Mitsinikos is accepting new patients on Vitals. View Dr. Theofanis Mitsinikos's profile on Vitals to make an appointment.
Where is Dr. Theofanis Mitsinikos's office located?: Dr. Theofanis Mitsinikos's office is located at 2500 Nesconset Hwy Bldg 3C, Stony Brook, NY, 11790.

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