About Us

Rubin Frenkel, MD, is a top-ranked obstetrician and gynecologist at Bay OB-GYN, PC, in New York City. He has more than 25 years of experience helping women of all ages enjoy optimal health and wellness at every stage of life. With practices in Sheepshead Bay, Brooklyn, and on the Upper East Side of Manhattan, Dr. Frenkel offers an array of the best, advanced treatment options.

At Bay OB-GYN, PC, Dr. Frenkel provides family planning services, a complete array of contraceptive and birth control options, routine gynecological exams, diagnosis and treatment for heavy bleeding and other forms of abnormal bleeding, and care for women approaching menopause. He can also diagnose and treat issues like fibroids, endometriosis, and polycystic ovary syndrome (PCOS). As a board-certified OB-GYN, he is skilled in state-of-the-art gynecological surgery techniques, including laparoscopy and other minimally-invasive techniques for the safe and effective treatment of gynecological issues.

Dr. Frenkel earned his medical degree at Kuban State Medical College in Krasnodar, Russia, followed by residencies in obstetrics and gynecology at both Beth Israel Medical Center and Interfaith Medical Center, and an internship at Flushing Hospital Medical Center. Bay OB-GYN, PC, has been accredited by the Joint Commission as an outpatient surgery center based on the practice's commitment to the highest standards of safety.

He is dedicated to offering all patients the guidance and information they need to make the most educated and informed decisions about their care options. Every course of treatment is carefully planned to provide each woman with the care she needs based on her medical needs, personal preferences, and other factors to help ensure the best outcome possible.

Dr. Frenkel speaks English, Spanish, Russian and Yiddish, and both practices accept most major forms of medical insurance.

Our practice is committed to providing state of the art healthcare that is comprehensive, holistic and patient-friendly. Our many years of experience combined with modern practice management techniques and a warm, personable staff afford our patients tremendous benefits in times of wellness and illness, throughout the phases of women's lives. With our flexibility, and appreciation for the human condition, we have no doubt that you will find our practice top notch.

Accepted Insurances

Please contact the office if your insurance is not listed or if you have any questions regarding payment options!

BlueCross BlueShield
Emblem Health
Fidelis Care (NY)
Health First
Oxford Health
The Empire Plan
United Healthcare

We Offer In-Office Procedures!

Our facility is accredited by the AAAASF, an organization that certifies healthcare institutions with the highest standards of care in the country, as an Office Based Surgical facility to perform an outpatient procedures with general anesthesia. We take pride in you entrusting your health with us and we look forward to living up to your expectations.

Cosmetic surgery can help in enhancing and restoring!

Cosmetic surgery can help in enhancing and restoring your looks. It can also help in adding more spice to your life. You may want to improve your looks, you may have a birth defect, or bring positive changes. Your cosmetic obgyn in New York expert can...

Preventative approach to medical care!

We believe in the preventative approach to medical care and use patient education as a way to improve the health choices of the women who come to us for care. We enjoy every aspect of our practice, whether it is delivering a new baby...


Words from our patients

  • Google

    "Have been going to Dr. Frenkel for at least 8 years, had 2 sons with him and still feel and felt comfortable at his office - great doctor, easy going and to the point."

    Maja L.
  • Google

    "Absolutely LOVE Dr.Frenkel. I have been under his care for 2 pregnancies and highly recommend him. He is very organized and his office is always clean."

    Jacqueline K.
  • Google

    "I loved being doctor Rubin’s patient. He is caring, knowledgeable, responsible and nice experienced."

    Aliya Z.
  • Google

    "Extremely satisfied with a doctor & staff. everybody makes you feel welcomed . Check ups always hassle free, quick & painless."

    Inna K.
  • Google

    "Very knowledgeable and willing to go the extra mile for patients, answer their questions, and entertain their fears and concerns. Highly recommended!"

    Yana V.
  • Google

    "I only know Dr. Frenkel for 25 years. He saved my life twice. Professional, compassionate and trustful."

    Graf L.
Our Locations

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