Publications:152
Accepting New Patients
Mount Sinai DoctorsTreats Adults
Accepting New PatientsJoshua D Safer, MD
Endocrine, Diabetes and Bone Diseases (Endocrinology)
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About Me
Joshua D. Safer, MD, FACP, FACE is the Executive Director of the Mount Sinai Center for Transgender Medicine and Surgery (CTMS) and Professor of Medicine at the Icahn School of Medicine at Mount Sinai.
Dr. Safer was the inaugural president of the United States Professional Association for Transgender Health (USPATH), is a current member of the board for the World Association for Transgender Health (WPATH) and serves on the Global Education Initiative committee for WPATH. Dr. Safer is a co-author of the Endocrine Society guidelines for the medical care of transgender people, the WPATH guidelines for the medical care of transgender people and the gender affirming hormone treatment sections in UpToDate.
Dr. Safer earned his medical degree from the University of Wisconsin. He completed his internal medicine residency at Mount Sinai Beth Israel and his endocrinology fellowship at Beth Israel Deaconess Medical Center in Boston. Dr. Safer has authored or co-authored over 150 peer-reviewed publications including the most recent reviews of transgender medicine in both the New England Journal and Annals of Internal Medicine.
In the News:
- Dr. Safer shares his thoughts on transient surgery and how him and his team are trying to share the new knowledge they obtain.
- Dr. Safer joins Katie Couric to discuss the biggest barriers that transgender face to obtain medical care.
- The Daily News shares the story of a transgender woman’s journey of beating breast cancer, with Dr. Safer weighing in on the carcinogenic dangers that implants bring.
- Dr. Safer weighs in on the court case that highlights misconceptions surrounding pediatric transgender care.
- Dr. Safer shares his opinion on the matter of sex-change operations yielding long-term mental health benefits for Transgender people.
- Dr. Safer discusses the barriers that transgender adults face when seekinggender-confirmation surgery, specifically overweight and obesity issues.
- Dr. Safer stresses the necessity of education in order to provide long-lasting meaningful change in the care for transgender individuals, with Medical Xpress and MedPage Today.
- Dr. Safer provides his experience with trans youth and the assistance of gender-affirming hormones.
- Dr. Safer shares his thoughts on how exceptional and knowledgeable transgender care access is tied to less suicidality.
- Hear Dr. Safer’s opinion on whether suppressing puberty is the right course when a child questions their gender.
- Dr. Safer comments on the study showing transgender men yielding eggs, babies, even after testosterone.
- Dr. Safer weighs in on and debunks the seven myths about trans health care.
- Dr. Safer discusses the controversial pubertal blocker legislation that may bring unintended consequences for children.
- Dr. Safer comments on the fact that many trans youth avoid revealing gender identity to doctors.
- Dr. Safer spoke to the New York Post about the re-opening of elective surgeries at the Center for Transgender Medicine.
- Dr. Safer weighs in on the Trump administration’s new ruling that would roll back antidiscrimination protections for transgender individuals set forth under the Affordable Care Act.
- Dr. Safer discusses the benefit of having supportive parents whenit comes to transgender healthcare.
- Dr. Safer comments on the necessity of respectful treatment when it comes to transgender patients.
Language
Position
Hospital Affiliations
- Mount Sinai Beth Israel
- Mount Sinai Morningside
- Mount Sinai Brooklyn
- Mount Sinai Queens
- The Mount Sinai Hospital
- New York Eye and Ear Infirmary of Mount Sinai
- Mount Sinai West
About Me
Joshua D. Safer, MD, FACP, FACE is the Executive Director of the Mount Sinai Center for Transgender Medicine and Surgery (CTMS) and Professor of Medicine at the Icahn School of Medicine at Mount Sinai.
Dr. Safer was the inaugural president of the United States Professional Association for Transgender Health (USPATH), is a current member of the board for the World Association for Transgender Health (WPATH) and serves on the Global Education Initiative committee for WPATH. Dr. Safer is a co-author of the Endocrine Society guidelines for the medical care of transgender people, the WPATH guidelines for the medical care of transgender people and the gender affirming hormone treatment sections in UpToDate.
Dr. Safer earned his medical degree from the University of Wisconsin. He completed his internal medicine residency at Mount Sinai Beth Israel and his endocrinology fellowship at Beth Israel Deaconess Medical Center in Boston. Dr. Safer has authored or co-authored over 150 peer-reviewed publications including the most recent reviews of transgender medicine in both the New England Journal and Annals of Internal Medicine.
In the News:
- Dr. Safer shares his thoughts on transient surgery and how him and his team are trying to share the new knowledge they obtain.
- Dr. Safer joins Katie Couric to discuss the biggest barriers that transgender face to obtain medical care.
- The Daily News shares the story of a transgender woman’s journey of beating breast cancer, with Dr. Safer weighing in on the carcinogenic dangers that implants bring.
- Dr. Safer weighs in on the court case that highlights misconceptions surrounding pediatric transgender care.
- Dr. Safer shares his opinion on the matter of sex-change operations yielding long-term mental health benefits for Transgender people.
- Dr. Safer discusses the barriers that transgender adults face when seekinggender-confirmation surgery, specifically overweight and obesity issues.
- Dr. Safer stresses the necessity of education in order to provide long-lasting meaningful change in the care for transgender individuals, with Medical Xpress and MedPage Today.
- Dr. Safer provides his experience with trans youth and the assistance of gender-affirming hormones.
- Dr. Safer shares his thoughts on how exceptional and knowledgeable transgender care access is tied to less suicidality.
- Hear Dr. Safer’s opinion on whether suppressing puberty is the right course when a child questions their gender.
- Dr. Safer comments on the study showing transgender men yielding eggs, babies, even after testosterone.
- Dr. Safer weighs in on and debunks the seven myths about trans health care.
- Dr. Safer discusses the controversial pubertal blocker legislation that may bring unintended consequences for children.
- Dr. Safer comments on the fact that many trans youth avoid revealing gender identity to doctors.
- Dr. Safer spoke to the New York Post about the re-opening of elective surgeries at the Center for Transgender Medicine.
- Dr. Safer weighs in on the Trump administration’s new ruling that would roll back antidiscrimination protections for transgender individuals set forth under the Affordable Care Act.
- Dr. Safer discusses the benefit of having supportive parents whenit comes to transgender healthcare.
- Dr. Safer comments on the necessity of respectful treatment when it comes to transgender patients.
Language
Position
Hospital Affiliations
- Mount Sinai Beth Israel
- Mount Sinai Morningside
- Mount Sinai Brooklyn
- Mount Sinai Queens
- The Mount Sinai Hospital
- New York Eye and Ear Infirmary of Mount Sinai
- Mount Sinai West
Clinical Focus
- Gender Affirming Care
- Transgender Medicine
Education
MD, uwiogn
Fellowship, Endocrinology, Diabetes and Metabolism
Beth Israel Deaconess Medical Center
Certifications
American Board of Internal Medicine
Locations
Insurance Information
Accepted insurance may vary by the doctor’s office location. Please contact the office directly to obtain the most up-to-date insurance information.
Patients with Cigna Medicare Advantage or Humana Medicare Advantage insurance: Please read this important message before booking to find out if out-of-network costs may apply to your next visit.
- Physician Office275 Seventh Avenue, 12th floor, New York, NY, 10001
Physicians who provide services at hospitals and facilities in the Mount Sinai Health System might not participate in the same health plans as those Mount Sinai hospitals and facilities (even if the physicians are employed or contracted by those hospitals or facilities).
Information regarding insurance participation and billing by this physician may be found on this page, and can also be obtained by contacting this provider directly. Because physicians insurance participation can change, the insurance information on this page may not always be up-to-date. Please contact this physician directly to obtain the most up-to-date insurance information.
Insurance and health plan networks that the various Mount Sinai Health System hospitals and facilities participate in can be found on the Mount Sinai Health System website.
Publications
Selected Publications
- Further Data Against the Use of Cyproterone Acetate in Gender-Affirming Hormone Therapy Regimens. Daniel J. Slack, Joshua D. Safer. Journal of Clinical Endocrinology and Metabolism
- Sexual Health Outcomes in Sexual Minority and Heterosexual Men After Prostate Radiation Therapy. Daniel R. Dickstein, Thodori Kapouranis, Keith Sigel, Christopher W. Wheldon, Eva Nvepu, Noelle Marie Javier, Robert Stewart, Matthew Galsky, John Sfakianos, Joshua D. Safer, Richard Stock, Karyn Goodman, B. R.Simon Rosser, Kathryn E. Flynn, Deborah C. Marshall. International Journal of Radiation Oncology Biology Physics
- Gender-affirming chest surgery decisions in response to hypothetical BRCA1/2 genetic testing. Taylor I. Gray, Joshua D. Safer, Leah Zaretsky. Journal of Genetic Counseling
Patient Experience Star Ratings and Comments
The Patient Experience Star Rating reflects our patients’ perception of how well their Mount Sinai provider communicated with them during an office visit. The Star Rating is based on patient responses to three questions on a patient experience survey, a standardized questionnaire sent to verified patients and distributed by a third party vendor, Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score.
Industry Relationships
Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device, biotechnology companies, and other outside entities to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their outside financial relationships.
Below are financial relationships with industry reported by Dr. Safer during 2024 and/or 2025. Please note that this information may differ from information posted on corporate sites due to timing or classification differences.
Board Service
- WPATH/USPATH
Consulting or Other Professional Services Examples include, but are not limited to, committee participation, data safety monitoring board (DSMB) membership
- World Athletics and other non-profit sports associations
- American Civil Liberties Union (ACLU) and other non-profit legal associations sharing projects
Editorial Services
- UpToDate
Mount Sinai's faculty policies relating to faculty collaboration with industry are posted on our website. Patients may wish to ask their physician about the activities they perform for companies.
Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device, biotechnology companies, and other outside entities to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their outside financial relationships.
Below are financial relationships with industry reported by Dr. Safer during 2024 and/or 2025. Please note that this information may differ from information posted on corporate sites due to timing or classification differences.
Board Service
- WPATH/USPATH
Consulting or Other Professional Services Examples include, but are not limited to, committee participation, data safety monitoring board (DSMB) membership
- World Athletics and other non-profit sports associations
- American Civil Liberties Union (ACLU) and other non-profit legal associations sharing projects
Editorial Services
- UpToDate
Mount Sinai's faculty policies relating to faculty collaboration with industry are posted on our website. Patients may wish to ask their physician about the activities they perform for companies.