Highlights
Age Groups Seen
- Child
- Adolescent
- Adult
Languages
- English
Gender
MaleEducation & Board Certifications
Education
- Residency: Bronx-Lebanon Hospital Center, 2001
- Internship: Bronx-Lebanon Hospital Center, 1998
- Medical Education: University of Bucharest, 1996
Research & Publications
See publications for this provider. (Disclaimer: This search is powered by PubMed, a service of the U.S. National Library of Medicine. PubMed is a third-party website with no affiliation with Cleveland Clinic.)
Industry Relationships
Cleveland Clinic physicians and scientists collaborate with industry to advance medical breakthroughs. These partnerships help commercialize discoveries for public benefit while maintaining scientific integrity. To ensure transparency and minimize potential bias, Cleveland Clinic reviews these relationships and publicly discloses when physicians/scientists receive significant compensation for consulting, serve in fiduciary roles, receive royalties, or hold equity interests related to their work. We manage potential conflicts through approval processes, annual reporting, and targeted management plans.
As of 2026-01-02, Dr. Siscu has reported no financial relationship with industry that is applicable to this listing.
In general, patients should feel free to contact their doctor about any of the relationships and how the relationships are overseen by Cleveland Clinic. To learn more about Cleveland Clinic's policies on collaborations with industry and innovation management, go to our Integrity in Innovation page.
Public Health Service-Reportable Financial Conflicts of Interest. Cleveland Clinic scientists and physicians engage in basic, translational and clinical research activities, working to solve health problems, enhance patient care and improve quality of life for patients. Interactions with industry are essential to bringing the researchers' discoveries to the public, but can present the potential for conflicts of interest related to their research activities. Click here to view a listing of instances where Cleveland Clinic has identified a Public Health Service (PHS)-Reportable Financial Conflict of Interest and has put measures in place to ensure that, to the extent possible, the design, conduct and reporting of the research is free from bias.
* Cleveland Clinic physicians and scientists subscribe to the guidance presented in the PhRMA Code on Interactions with Healthcare Professionals and the AdvaMed Code of Ethics on Interactions with Health Care Professionals. As such, gifts of substantial value are generally prohibited.
Insurances Accepted
Ratings & Reviews
4.9 out of 5
432 ratings, 63 reviewsThe Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
- 5 out of 5 starsReviewed on 3/24/2026
Dr. Siscu is always respectful and sensitive to my care. The.only issue that I had was the extensive wait time before I met with Dr. Siscu.
- 5 out of 5 starsReviewed on 3/24/2026
Dr. Siscu is a wonderful physician! Very caring and a very attentive listener. I always feel heard and I always feel as if I am allowed to be a participant in my healthcare decisions! He''s great!
- 5 out of 5 starsReviewed on 3/24/2026
Not phone calls, but MyChart Messages - Dr. Siscu, or a member of his staff, ALWAYS replies to my messages in a very timely manner.
- 5 out of 5 starsReviewed on 3/24/2026
Outstanding provider who exemplifies patient care with his listening, understanding, and genuine care- treats me as his patient as an individual- shows kindness and empathy
- 5 out of 5 starsReviewed on 3/24/2026
Dr Siscu is a good listener and makes good suggestions for my care
- 5 out of 5 starsReviewed on 3/24/2026
I ALWAYS do recommend Dr. Siscu, especially on social media where people are always asking about doctor ideas, etc.
- 5 out of 5 starsReviewed on 3/24/2026
Dr. Siscu is an example of what and how each provider at the clinic embraces their patients and their practices
- 5 out of 5 starsReviewed on 3/24/2026
Dr Siscu is the best doctor I''ve ever had!!!
- 5 out of 5 starsReviewed on 3/13/2026
Dr Siscu is great!
- 5 out of 5 starsReviewed on 2/27/2026
I''ve never had a bad experience with medical practitioners or assistants. Dr. Siscu is an excellent doctor.
- 5 out of 5 starsReviewed on 2/27/2026
Happy with Cleveland Clinic and Dr. Siscu and associates
- 5 out of 5 starsReviewed on 2/27/2026
Dr. Siscu is always professional, he shows concern and care, asks questions, answers my questions.
- 5 out of 5 starsReviewed on 2/24/2026
Been searching for this Doctor my whole life and I feel like he was heaven sent.
- 5 out of 5 starsReviewed on 2/16/2026
Love Dr Siscu ..he listens
- 5 out of 5 starsReviewed on 2/6/2026
I've had several follow up messages from both Dr Siscu and his staff. Excellent coordination.
- 5 out of 5 starsReviewed on 2/6/2026
Because of previous neck surgery, Dr Siscu ordered a neck xray. I consider that an example of thorough care. The result of the xray has changed the direction of my care
- 5 out of 5 starsReviewed on 1/15/2026
Great doctor!
- 5 out of 5 starsReviewed on 12/29/2025
My Dr. Always listen carefully to what I'm saying
- 5 out of 5 starsReviewed on 12/29/2025
Both the doctor and the nurse practitioner listened carefully to my questions. They answered all of them.
- 5 out of 5 starsReviewed on 12/29/2025
Always a good experience with Dr. Siscu.
- 5 out of 5 starsReviewed on 12/29/2025
Dr Siscu is easy to talk to and listens well to my issues. He is a good Dr. And a good person.
- 5 out of 5 starsReviewed on 12/29/2025
I have recommended him to family previously
- 5 out of 5 starsReviewed on 12/29/2025
Dr. Siscu has always done a great job
- 5 out of 5 starsReviewed on 12/9/2025
Dr. Siscu is always a good listener and I can tell he cares by the questions he asks. He has been clear about prescribing medications and their potential side effects to help me make a more informed decision.
- 5 out of 5 starsReviewed on 11/24/2025
Dr Siscu is very considerate , caring, checking my records . Making suggestions going forward. Very professional . Making suggestions on my health.
- 5 out of 5 starsReviewed on 11/24/2025
Dr. Siscu is excellent
- 5 out of 5 starsReviewed on 11/18/2025
Dr. Siscu is in the top 2-3 doctors I have had in my entire life. I am 75.
- 5 out of 5 starsReviewed on 11/11/2025
Dr. Siscu is the best!
- 5 out of 5 starsReviewed on 10/29/2025
Dr Siscu and I always talk about my test results and the next step in my care. HE'S A GREAT DOCTOR
- 5 out of 5 starsReviewed on 10/29/2025
I have the best Dr in the world at Cleveland clinic
- 5 out of 5 starsReviewed on 10/29/2025
Hes a very good Doctor
- 5 out of 5 starsReviewed on 10/6/2025
A great Doctor
- 5 out of 5 starsReviewed on 9/26/2025
Been seeing Dr for 13 years. Wonderful Doctor
- 5 out of 5 starsReviewed on 9/26/2025
Dr Siscu provides great care by listening well and communicating clearly
- 5 out of 5 starsReviewed on 9/23/2025
Really like the doctor and PA
- 5 out of 5 starsReviewed on 9/23/2025
Dr. Siscu is an excellent doctor and his staff is very helpful.
- 5 out of 5 starsReviewed on 9/16/2025
Doctor and Nurse were great!
- 5 out of 5 starsReviewed on 9/16/2025
What an awesome Dr. , Been looking my whole life for this guy!
- 5 out of 5 starsReviewed on 9/16/2025
Really like Dr. Siscu, look forward to seeing him, always feel good about myself after the visit, he genuinely cares and really helps me come up with a plan to improve my well-being.
- 5 out of 5 starsReviewed on 8/19/2025
Dr. Siscu listen to me all the time. He's a very good Dr
- 5 out of 5 starsReviewed on 8/19/2025
No staff works together to care for me only the Dr does.
- 5 out of 5 starsReviewed on 8/19/2025
Dr. Siscu was very informative and patient with me. He listened to me and offered great feedback for my healthcare concerns.
- 5 out of 5 starsReviewed on 8/12/2025
Dr. Siscu is very kind, knowledgable, able to communicate well, caring, professional,respectful.
- 5 out of 5 starsReviewed on 8/12/2025
I was very pleased Dr Siscu was able to accommodate me on a very short notice.
- 5 out of 5 starsReviewed on 8/12/2025
Always an excellent Experience with Dr. Siscu.
- 5 out of 5 starsReviewed on 8/12/2025
Dr. Siscu is a good Dr who actually cares about you as a person and will talk to you about anything and answer questions
- 5 out of 5 starsReviewed on 7/22/2025
Dr.Siscu has always been very kind, respectful and thorough. I had not seen him directly in awhile and he was still the same. He listened and was very positive about all my reached goals and achievements and was able to assist me with ones I'm still working towards.
- 5 out of 5 starsReviewed on 7/15/2025
Dr. Siscu is an outstanding healthcare provider.
- 5 out of 5 starsReviewed on 6/24/2025
Dr. Siscu understood my symptoms and listened to my description of what had transpired during my episode. As a result he asked me to stop taking a particular medication, which I no longer needed since my condition had changed. He will evaluate this again at our next appointment in three months.
- 5 out of 5 starsReviewed on 6/24/2025
I have very high opinion of the doctors that treat me, Overall I would say excellent A1.
- 5 out of 5 starsReviewed on 6/24/2025
Appreciate the time Dr. Siscu gave me. He really shows care and concern!
- 5 out of 5 starsReviewed on 6/17/2025
He is a great doctor. He is caring, knowledgeable, He evaluates all medications and health problems, even if not related with the visit.
- 5 out of 5 starsReviewed on 6/17/2025
Dr Siscu is very personable, I would rate him as the most caring doctor I've ever had
- 5 out of 5 starsReviewed on 6/9/2025
My Dr has the best team of Dr that I would love to recommend to other patients. Cleveland clinic is the best.
- 5 out of 5 starsReviewed on 6/9/2025
Dr. Siscu always treats his patients like he would if we were members of his own family.He excels in each area above mentioned.
- 5 out of 5 starsReviewed on 6/9/2025
Wonderful doctor my family is glad we have him as a doctor
- 5 out of 5 starsReviewed on 5/27/2025
Dr. Siscu is an excellent, informed, caring, provider. I believe he does an outstanding job with my medical care.
- 5 out of 5 starsReviewed on 5/27/2025
Enjoy meeting with the doctor and sharing concerns.
- 5 out of 5 starsReviewed on 5/20/2025
The Dr and I discussed my situation. He prescribed medication, a course of treatment and scheduled a follow up visit in a few days.
- 5 out of 5 starsReviewed on 5/13/2025
Dr Siscu is a great doctor. My real issue is high blood pressure. We talk several minutes about it and how to try to bring in down. He listens and we discuss life. I am very happy to have him.
- 5 out of 5 starsReviewed on 5/6/2025
Dr Siscu is very knowledgeable and easy to talk to. Very caring and helpful.
- 5 out of 5 starsReviewed on 5/6/2025
Dr. Siscu has always been patient centered, kind and caring.
- 5 out of 5 starsReviewed on 4/29/2025
I am only going to say that Dr. Siscu spent quality time with me, answered my concerns and gave me good advice. These surveys are cumbersome and I have been told my numerous staff that they never see the results.