Internal Medicine / Geriatrics
Dr. Sofya Kleyn specializes in both conventional and alternative therapies for a wide range of medical conditions, focusing on preventing and reversing disease before it becomes chronic. She integrates lifestyle interventions with emerging alternative treatments to support healing while minimizing unnecessary risks. She has 33 years of experience and sees patients in English, Russian, and Spanish.
Internal Medicine, Geriatrics, Functional Medicine
Dr. Ilya Kleyn integrates traditional internal medicine with functional and alternative therapies. He emphasizes balanced nutrition, liver detoxification, and natural healing to manage conditions like high cholesterol, diabetes, and obesity through individualized, non-invasive treatments. He has 33 years of experience and sees patients in English, Spanish, Russian, and Turkish.
Family Medicine / Osteopathy
Dr. Leonid Tafler is a board-certified family medicine physician and osteopath with 28 years of experience. He is known for his expertise in managing muscle spasms and providing comprehensive family care. He sees patients in English and Russian.
Physician Assistant
Doris Yu is a compassionate and skilled Physician Assistant with a Master of Science in Physician Assistant Studies from 
We accept most major medical insurance plans, including Medicare — call to confirm yours.
We're in network with most major New York plans, including UnitedHealthcare/Oxford, Aetna, EmblemHealth (GHI/HIP), Empire BlueCross BlueShield, Cigna, Molina Healthcare (Affinity), Fidelis Care, MetroPlus, 1199SEIU, Oscar Health, MVP Health Care, Humana, VNS Health, Wellcare, Elderplan and VillageCareMAX. Call (212) 571-5000 before your visit and we'll confirm your specific plan.
Yes. Dr. Sofya Kleyn and Dr. Ilya Kleyn both offer telehealth visits for patients who prefer to be seen remotely.
Our providers speak English, Russian, Spanish, Chinese, and Turkish, so care is available in the language you're most comfortable with.
We're at 225 Broadway, Suite 910, on the ninth floor in Lower Manhattan's Financial District, a short walk from the Fulton St and World Trade Center subway stations.
Our office is open Monday through Friday, 9:00 AM to 5:00 PM, and closed Saturday and Sunday.
Call us at (212) 571-5000 or use the Book Appointment button on our website to schedule a visit.
We welcome new patients. Whether you need a referral depends on your plan — many let you book directly with a primary care physician, while some HMO and Medicare Advantage plans require one for specialty care. Call (212) 571-5000 and we'll check what your plan requires.
Please bring a photo ID, your insurance card, a list of the medications you take, and any recent test results or records from another provider. Arriving a few minutes early gives us time to finish your paperwork.
We fit in same-day and walk-in visits whenever the schedule allows. Call (212) 571-5000 before you come in and we'll tell you the soonest time we can see you.
Yes. Our Allergy Care program includes skin testing, blood testing, and elimination diets to identify and manage food and seasonal allergies.
Our IV Therapy / Vitamin IV Drip service delivers vitamins, minerals, and antioxidants directly into the bloodstream to help hydrate, energize, detoxify, or support immunity. Ask your provider whether it's a good fit for your goals.
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