Jonas Leibowitz, MD
Verified listingAbout Jonas Leibowitz, MD
What is Jonas Leibowitz, MD?
Jonas Leibowitz, MD is an endocrinology practice at 770 McLean Ave., #B in Yonkers, NY 10704. Dr. Leibowitz has practiced endocrinology in Yonkers for more than 20 years and is the practice's prescriber. He completed his internship and residency at The Mount Sinai Medical Center.
Its main work is endocrine care: thyroid, PCOS, osteoporosis, adrenal and pituitary disorders, and type 1 and type 2 diabetes. It also offers weight loss and testosterone deficiency care. It does not list peptide or longevity services.
The weight loss program begins with a custom plan. In its own words: "As he monitors your progress through regular exams and occasional lab work, he adjusts your weight loss plan." For testosterone deficiency, its page lists gonadotropin injections, testosterone pellets, testosterone injections and testosterone patches among possible plans.
Office hours are Monday and Tuesday 8:00 am to 5:00 pm, Wednesday 8:00 am to 2:30 pm, Thursday 9:00 am to 6:00 pm and Friday 8:00 am to 1:00 pm. It is closed on weekends. It offers telehealth, and it notes that telemedicine appointments can be scheduled from 4 pm to 8 pm by calling the office.
What does it cost?
It does not publish prices, a consultation fee or financing terms, and it does not say whether medication is included in any price. It accepts most major insurance plans. Its insurance list includes Aetna, Blue Cross Blue Shield, Cigna, Medicare, MVP, Tricare and Self Pay, among others, so self pay is listed as a way to pay. Lab work is run occasionally, and testosterone testing can involve several morning blood draws, so ask what each one costs.
What should you ask before you book?
Ask who writes and renews each prescription. Dr. Leibowitz is the only prescriber listed, so ask whether he handles every refill and what each follow-up visit costs.
Ask which weight loss medication you would take. It does not name the weight loss medications it prescribes, so ask for the name, whether it is brand-name or compounded, and whether the monthly price includes it.
Ask about telehealth too. It does not list which states its virtual visits cover, so confirm where you must be located for one. Finally, ask what it bills as self pay, what your plan would cover, and how cancellation works, since it does not publish cancellation terms.
Who is it a good fit for?
This is a good fit if you want an endocrinologist in Yonkers, can book in person during office hours or by telehealth, and want the medication name and total monthly cost in writing before you commit. It is not the match if you are looking for peptide or longevity care, which it does not list. Call 914-650-2806 and put the questions above to the office first.
Sources: jonasleibowitzmd.com, jonasleibowitzmd.com/services/weight-loss, jonasleibowitzmd.com/services/testosterone-deficiency, jonasleibowitzmd.com/services, jonasleibowitzmd.com/services/adrenal-and-pituitary-disorders
Services Offered
What we confirmed
Read off Jonas Leibowitz, MD’s own website on 2026-10-23. These are their words, not ours.
- ✓Hormone therapy — listed on their site as “"testosterone replacement therapy" (plan)” source
We have not yet collected published prices or prescriber credentials for this clinic. When we do, they will appear here with a link to the page they came from — or a note saying the clinic publishes none, which is itself worth knowing. Call them for a price in the meantime.
Hours
Monday 8:00 am - 5:00 pm 8:00 am to 5:00 pm Tuesday 8:00 am - 5:00 pm 8:00 am to 5:00 pm Wednesday 8:00 am - 2:30 pm 8:00 am to 2:30 pm Thursday 9:00 am - 6:00 pm 9:00 am to 6:00 pm Friday 8:00 am - 1:00 pm 8:00 am to 1:00 pm Saturday Closed Closed Sunday Closed Closed