Colen MD Plastic Surgery is a family of plastic surgeons based in New York City and Hackensack, New Jersey. Dr. Helen Colen, Dr. Stephen Colen, and Dr. Kari Colen bring a unique set of skills and years of experience to our patients. Our Manhattan office is right off of Park Avenue and has a fully accredited (AAAASF-certified) state-of-the-art surgical facility. Colen MD's New Jersey location is part of a larger hospital system and is centrally located for all of our Northern NJ patients.