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Rani B. Fritz, PhD, DO

  • Specialty: Reproductive Endocrinology and Infertility
  • Languages: English, Hebrew
  • Phone: 631-246-9100
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About Me

I pursued a career in medicine because I was fascinated by the complexity of the human body and appreciated making a positive and lasting impact on people’s lives. I chose my specialty of reproductive endocrinology and infertility because I was intrigued by the complex physiology and science. Today, I continue to find satisfaction in helping couples and individuals achieve their desire to build families.

I see a variety of patients, including same-sex couples and women or couples electing for egg donation, surrogacy, or both. I also see women attempting to preserve their fertility through embryo or egg freezing. Additionally, I provide preimplantation genetic diagnosis to women and couples who are at risk for transmitting a genetic disease to their offspring.

I perform surgical and medical treatments necessary to help patients achieve their fertility goals, including in vitro fertilization (IVF) and intrauterine insemination (IUI). I also perform minimally invasive surgeries, such as hysteroscopies and laparoscopies to treat infertility, including the removal of fibroids, ovarian cysts, uterine polyps, and tubal surgeries.

We tailor our treatment and management for each individual and couple based on their unique medical and social circumstances. Our dedicated medical team cumulatively has more than a century of experience and practices in a compassionate, professional, and nonjudgmental manner.

I have been and continue to be involved in research pertaining to the health of the placenta, male fertility, and reproductive aging and fertility preservation.

I am a member of the American College of Obstetrics and Gynecology and the American Society for Reproductive Medicine.

Conditions and Treatments

  • ectopic pregnancy
  • infertility in women
  • endometriosis
  • male infertility
  • fertility
  • polycystic ovary syndrome
  • fibroid tumor
  • recurrent miscarriage
  • oocyte recovery
  • fertility preservation
  • ovulation induction
  • egg donation
  • preimplantation diagnosis
  • artificial insemination
  • hysteroscopy
  • in vitro fertilization
  • surrogate mothers
  • egg freezing


  • Clinical Assistant Professor, Department of Obstetrics and Gynecology
Board Certifications
  • American Board of Obstetrics & Gynecology - Obstetrics & Gynecology, 2011
Education and Training
  • Fellowship, Montefiore Medical Center, Reproductive Endocrinology and Infertility, 2018
  • PhD from Wayne State University, 2015
  • Residency, St. Luke's-Roosevelt Hospital Center, Obstetrics & Gynecology, 2009
  • DO from New York Institute Of Tech, 2005

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Insurance Plans Accepted

This provider accepts the following insurance plans.

  • Aetna
    • Aetna HMO
    • Aetna Indemnity
    • Aetna Medicare
    • Aetna POS
    • Aetna PPO/EPO
  • Cigna
    • Cigna EPO/POS
    • Cigna PPO
  • Empire Blue Cross Blue Shield
    • Empire Blue Cross Blue Shield EPO
    • Empire Blue Cross Blue Shield HMO
    • Empire Blue Cross Blue Shield Indemnity
    • Empire Blue Cross Blue Shield MediBlue
    • Empire Blue Cross Blue Shield POS
    • Empire Blue Cross Blue Shield PPO
    • Empire Blue Cross Blue Shield Pathways, Enhanced
  • GHI
    • GHI CBP
    • GHI HMO
View All Accepted Plans This list of insurances changes regularly, and insurance plans listed may not be accepted at all office locations for this provider. Before your appointment, please confirm with your insurance company that this provider accepts your insurance.

Locations and Appointments

NYU Langone Reproductive Specialists of New York

2500 Nesconset Highway, Building 23B
Stony Brook, NY 11790

NYU Langone Reproductive Specialists of New York

16 Court Street, 27th Floor
Brooklyn, NY 11241

NYU Langone Reproductive Specialists of New York

1111 Montauk Highway, Suite 204
West Islip, NY 11795


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