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Nannan Thirumavalavan, MD

Nannan Thirumavalavan, MD



119 Ratings 19 Reviews



Accepting New Patients

Primary Location

UH Cleveland Medical Center
11100 Euclid Ave
Cleveland, OH 44106

Schedule an Appointment

Seeing New Patients As Soon As: Monday, Jul 18


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Nannan Thirumavalavan, MD, is a fellowship-trained urologist who specializes in male infertility, microsurgery, sexual dysfunction and men’s health. He is an expert in penile implants and microsurgical vasectomy reversals, and is University Hospitals’ Chief of Male Reproductive and Sexual Health, as well as Assistant Professor of Urology at Case Western Reserve University School of Medicine.

Dr. Thirumavalavan grew up in central New Jersey. He graduated cum laude from Boston University College of Arts and Sciences for his undergraduate degree and then went on to complete medical school at Boston University School of Medicine. Subsequently, he completed his Internship in general surgery and residency in urology at Boston Medical Center. He then completed a National Institutes of Health-sponsored fellowship in Male Reproductive Medicine and Surgery at Baylor College of Medicine in Houston.

Dr. Thirumavalavan has earned numerous awards in his career, including the AUA Men’s Health Traveling Fellowship in 2014, the NIH Travel award in 2018 for the American Society of Andrology, and the Society for Male Reproduction and Urology Traveling Scholarship in 2018. He teaches and mentors resident urologists and medical students.

Most importantly, Dr. Thirumavalavan prides himself on providing compassionate, thoughtful care for his patients. He is comfortable discussing sensitive topics such as infertility and erectile dysfunction. With his gentle manner he takes the time to listen to his patients, and works with them to create a treatment plan that best suits their needs.

In his spare time, Dr. Thirumavalavan enjoys spending time with his wife and young daughter. He enjoys playing golf and is an avid lacrosse fan, being a former collegiate player and youth coach.

View Provider’s Blog


  • Ejaculatory Dysfunction
  • Erectile Dysfunction (ED)
  • Infertility
  • Low Libido
  • Low Testosterone
  • Men's Health
  • Microsurgery
  • Penile Implant
  • Penile Prosthesis
  • Peyronie's Disease (PD)
  • Sexual Dysfunction
  • Sperm Extraction
  • Varicocele
  • Varicocele Repair
  • Vasectomy
  • Vasectomy Reversal


Watch to find out more about this University Hospitals provider.

Languages Spoken

English, Tamil

Office Locations

UH Cleveland Medical Center

11100 Euclid Ave
Cleveland OH, 44106

UH Ahuja Medical Center

1000 Auburn Dr
Beachwood OH, 44122

UH Brainard Medical Bldg

29001 Cedar Rd
Lyndhurst OH, 44124

UH Hudson Health Center

5778 Darrow Rd
Hudson OH, 44236

Patient Experience Reviews

4.8 out of 5

119 Ratings

Patient Comments (19)

Reviewed On 6/1/2022
Dr. T was really fantastic

Reviewed On 6/1/2022

Reviewed On 6/1/2022
Dr. T is one heck of a great dude and very respectful of what you have to say. You can tell when someone has found the right spot where he is supposed to be in life!

Reviewed On 6/1/2022
Provider was excellent. ***

Reviewed On 4/1/2022
I felt at ease with him. This was my first visit with him, so it was mainly questions and answer's to assess for my next appointment.

Reviewed On 4/1/2022
Dr T provided excellent care

Reviewed On 3/1/2022
I requested this doctor.very impressed!

Reviewed On 3/1/2022
Dr. Thirumavalavan was phenomenal, he took the time to get to know me and my situation before providing care and making sure I understood the decision and treatment path selected.

Reviewed On 1/1/2022
Dr T was fantastic. His nurse *** was also great.

Reviewed On 12/1/2021
Outstanding experience

Reviewed On 12/1/2021
Excellent physician very knowledgeable is eligible very concerned about his patient's health, And answers all your questions with knowledgeable information

Reviewed On 11/1/2021
Very professional

Reviewed On 11/1/2021
I am so happy I got to see this doctor! So far he has been very helpful!!

Reviewed On 10/1/2021
Provider prescribed medication, which I understood but also scheduled a follow-up with a surgeon without explanation, following a brief examination. This left me feeling anxious, confused, and worried. Subsequently, the surgeon has discussed surgical options prior to running diagnostic tests. I will not be returning to either of these providers.

Reviewed On 10/1/2021
Dr. "T" is a great guy who has obvious care for my well being. I feel very comfortable and safe in his care. Every visit has been the same; very professional, very personable, and very caring,

Reviewed On 10/1/2021
Excellent care, very attentive and professional, would highly recommend.

Reviewed On 9/1/2021
Excellent manner for patients

Reviewed On 8/1/2021
the best Dr.

Reviewed On 8/1/2021
good care

Board Certifications

  • Urology - American Board of Urology


Fellowship | Male Reproductive Medicine and Microsurgery
Male Reproductive Medicine and Microsurgery - Baylor College Of Medicine (2017 - 2019)

Residency | Urology
Urology - Boston Medical Center (2012 - 2017)

Internship | General Surgery
General Surgery - Boston Medical Center (2011 - 2012)

Medical Education
Boston University School Of Medicine (2011)

Boston University College Of Arts And Sciences (2008)

Industry Relationships

University Hospitals is committed to transparency in our interactions with industry partners, such as pharmaceutical, biotech, or medical device companies. At UH, we disclose practitioner and their family members’ ownership and intellectual property rights that are or in the process of being commercialized. In addition, we disclose payments to employed practitioners of $5,000 or more from companies with which the practitioners interact as part of their professional activities. These practitioner-industry relationships assist in developing new drugs, devices and therapies and in providing medical education aimed at improving quality of care and enhancing clinical outcomes. At the same time, UH understands that these relationships may create a conflict of interest. In providing this information, UH desires to assist patients in talking with their practitioners about industry relationships and how those relationships may impact their medical care.

UH practitioners seek advance approval for certain new industry relationships. In addition, practitioners report their industry relationships and activities, as well as those of their immediate family members, to the UH Office of Outside Interests annually. We review these reports and implement management plans, as appropriate, to address conflicts of interest that may arise in connection with medical research, clinical care and purchasing decisions.

View UH’s policy (PDF) on practitioner-industry relationships.

As of December 31, 2016, Nannan Thirumavalavan did not disclose any Outside Relationships with Industry.