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Dr. Natan Bar-Chama, MD

Bio

Dr. Natan Bar-Chama is the Director of the Center of Male Reproductive Health at RMA of New York. Dr. Bar-Chama is a board certified urologist who received his medical degree with special distinction for research in male infertility and also completed his urology residency at the Albert Einstein College of Medicine. In 1993, Dr. Bar-Chama was awarded the prestigious New York Academy of Medicine F.C. Valentine Fellowship and received subspecialty training in male reproductive medicine and surgery at the Baylor College of Medicine in Houston, Texas.

Dr. Bar-Chama is the Director of Male Reproductive Medicine and Surgery, and an Associate Professor in the Departments of Urology, Obstetrics, Gynecology and Reproductive Sciences at Icahn School of Medicine at Mount Sinai. His subspecialty clinical practice is exclusively dedicated to male reproductive medicine and microsurgical reconstruction for the treatment of male-factor infertility (vasectomy reversal, varicocelectomy, testicular and epididymal sperm retrieval, and vasectomy).

Dr. Bar-Chama's research (over $3 million in grants) and publications have focused on male infertility and erectile dysfunction. In 1998, he received the Pfizer Scholars in Urology Award for leadership, innovation, and outstanding achievement in urological science. Since 2005, Dr. Bar-Chama has been listed each year as one of the "Best Doctors in New York" by New York Magazine. Dr. Bar-Chama serves on the Board of Directors for the Society for Male Reproduction and Urology (SMRU), of the American Urological Association (AUA) (to be president in 2012), The Society of Male Reproductive Urology (SMRU) of the American Society of Reproductive Medicine (ASRM) and The American Fertility Association.



Specialties:

  • urology

Affiliation:

  • The Mount Sinai Medical Center, Icahn School of Medicine at Mount Sinai

Location:

Activity

  • Sharecare News
    Sharecare News posted a story about Urology:
    Tweaking Dietary Fat Mix Might Boost Prostate Cancer Survival

    MONDAY, June 10 (HealthDay News) -- Men with prostate cancer may boost their survival chances if they replace animal fats and carbohydrates in their diet with healthy fats such as olive oils, nuts and avocados, new research suggests.

    Men who substituted 10 percent of their daily calories ...Full Article

  • Nicole Lester
    Nicole Lester is now following Natan Bar-Chama, MD
  • Sharecare News
    Sharecare News posted a story about Urology:
    Screening Debate Typifies Prostate Cancer Uncertainties

    FRIDAY, Aug. 10 (HealthDay News) -- Though prostate cancer makes the news a lot, much of the information seems conflicting or inconclusive, leaving men with few absolute answers.

    Which treatment is most effective? Which has the fewest side effects? And who might benefit most from screenin...Full Article

  • Natan Bar-Chama, MD
    Natan Bar-Chama, MD of The Mount Sinai Medical Center answered:
    What physiological processes does testosterone play a part in?
    Testosterone plays a role in these physiological processes:
    • building proteins;
    • erections;
    • bone formation;
    • lipid metabolism;
    • carbohydrate metabolism;
    • liver function;
    • prostate gland growth;
    • production of blood cells in bone marrow.
     Full Post
  • Natan Bar-Chama, MD
    Natan Bar-Chama, MD of The Mount Sinai Medical Center answered:
    What are the causes of osteoporosis in men?
    The causes of bone loss in men often relate to genetic, environmental, hormonal, and disease-specific related factors. Since osteoporosis in men may correlate to an underlying physical disorder, men should seek a careful clinical evaluation. We find a surprisingly large number of men with...  Full Post
  • Natan Bar-Chama, MD
    Natan Bar-Chama, MD of The Mount Sinai Medical Center answered:
    How are men medically treated for osteoporosis?

    Medical treatment of osteoporosis includes:

    Calcium—keeps bones strong. Calcium intake should be around 1200-1500mg per day in men over 70, and 1000 mg per day in other men.

    Vitamin D—helps the body absorb calcium. Individuals should receive 600-800IU per day.

    Anti-osteoporotic medications,

    ...  Full Post
  • Natan Bar-Chama, MD
    Natan Bar-Chama, MD of The Mount Sinai Medical Center answered:
    What are the symptoms of acute bacterial prostatitis?
    Acute Bacterial Prostatitis is an uncommon and dangerous bacterial infection of the prostate gland with the following symptoms:
    • fever;
    • chills;
    • pain and burning upon urination;
    • pelvic pain;
    • painful ejaculation;
    • tender, swollen prostate.
     Full Post
  • Natan Bar-Chama, MD
    Natan Bar-Chama, MD of The Mount Sinai Medical Center answered:
    What are the diagnostic tools used for erectile dysfunction?
    These diagnostic tools include:
    • nocturnal penile tumescence monitoring—this a test that measures the rigidity of an erection with sensing probes placed against the sides of the penis;
    • duplex doppler ultrasound—evaluates blood flow as it moves through vessels;
    • somatosensory evoked potential
    ...  Full Post
  • Natan Bar-Chama, MD
    Natan Bar-Chama, MD of The Mount Sinai Medical Center answered:
    What are the symptoms of a drop in testosterone in men?
    Testosterone regulates the structure of all body proteins and insures the development and integrity of the genitals (penis and testicles) in males. The adult testicles normally produce about 7-10 mg of testosterone daily. A deficiency in testosterone can cause:
    • erectile dysfunction;
    • less
    ...  Full Post
  • Natan Bar-Chama, MD
    Natan Bar-Chama, MD of The Mount Sinai Medical Center answered:
    What are the regions of the prostate gland?
    The prostate gland has four distinct regions:
    1. anterior fibromuscular stroma—anchoring point of the urethral sphincter that controls urination: it does not have any glands and therefore cancer or enlargement does not develop here;
    2. peripheral zone—almost all prostate cancers start here;
    3. central zo
    ...  Full Post
  • Natan Bar-Chama, MD
    Natan Bar-Chama, MD of The Mount Sinai Medical Center answered:
    What are the symptoms of erectile dysfunction (erection problems)?
    Erectile dysfunction (ED) is characterized by the inability to:
    • achieve an erection;
    • maintain an erection;
    • penetrate your partner.
    When a man experiences ED on a regular basis, the symptoms may interfere with his self-image as well as his and his partner's sexual life. A wide range of treatments...  Full Post
  • Natan Bar-Chama, MD
    Natan Bar-Chama, MD of The Mount Sinai Medical Center answered:
    What are the symptoms of chronic bacterial prostatitis?
    These are the symptoms you should watch for:
    • persistent aching pain in lower back, prostate or genital area - the nerves that carry pain sensation from the prostate do not localize the source of pain very precisely, and therefore it may be difficult to describe exactly where the pain is
    ...  Full Post
  • Natan Bar-Chama, MD
    Natan Bar-Chama, MD of The Mount Sinai Medical Center answered:
    What causes erectile dysfunction?
    Common diseases that cause ED include:
    • diabetes—causes nerve and artery damage;
    • thyroid disorders—affect hormone production, in men this relates to their testosterone levels;
    • hypercholesterolemia—fosters atherosclerosis, blood vessel decay, and causes erectile dysfunction through its influence
    ...  Full Post
  • Natan Bar-Chama, MD
    Natan Bar-Chama, MD of The Mount Sinai Medical Center answered:
    What are the treatments for erectile dysfunction?
    Treatment options include:
    • oral medications—PDE-5 inhibitors commonly referred to as Viagra®, Levitra®, or Cialis®; improve blood flow to the penis;
    • nutritional (natural) supplements that can enhance erectile dysfunction, sometimes in conjunction with other methods;
    • vacuum erection devices&
    ...  Full Post
  • Natan Bar-Chama, MD
    Natan Bar-Chama, MD of The Mount Sinai Medical Center answered:
    What are the symptoms of osteoporosis?
    Initial symptoms of osteoporosis include:
    • height loss;
    • kyphosis;
    • fracture;
    • symptomatic back pain;
    • low weight;
    • frailty;
    • fractures;
    • poor sense of balance;
    • reduced grip strength.
     Full Post