Our Clinicians & Staff

Inessa Grinblat, M.D.

Dr. Grinblat has extensive experience in internal medicine, acute and chronic patient care. Her experience also includes research in coronary artery disease and diabetes. She completed her residency in Internal Medicine at Lenox Hill Hospital in New York and is licensed in New Jersey.

Igor Priven, M.D.

Dr. Priven is a board certified endocrinologist. He completed his endocrinology fellowship at Mount Sinai School of Medicine in New York, with additional training at the Mayo Clinic. He is the only endocrinologist in Middlesex/Monmouth counties designated as a “Thyroid specialist” by the American Thyroid Association (www.thyroid.org). He performs and interprets thyroid ultrasonography and ultrasound-guided fine needle aspiration of thyroid nodules as well as Bone Density (DEXA) scans for osteoporosis evaluation. Dr. Priven also specializes in diabetes evaluation and management. He is a member of The American Thyroid Association and Endocrine Society. Dr. Priven always makes sure that patients are well educated about their diagnosis and treatment plan, and always puts patients at ease.

Albert Sun, M.D.

Dr. Sun attended the Medical University of South Carolina, where he received his medical degree. He completed his residencies at Tufts New England Medical Center and Yale-affiliated Griffin Hospital. He completed a fellowship in endocrinology at the University of California, Irvine Medical Center. Dr. Sun is certified by the American Board of Internal Medicine in internal medicine, endocrinology, diabetes, and metabolism. He is also certified by the American Board of Preventive Medicine in public health and general preventive medicine. Dr. Sun speaks English and Mandarin.

Jacqueline Vaynkof, M.D.

Dr. Vaynkof is a board certified physician who received her undergraduate degree from New York University and earned her medical degree from SUNY Downstate College of Medicine. She completed her residency and fellowship training in Endocrinology, Diabetes, and Metabolism at Hofstra Northwell School of Medicine at North Shore-Long Island Jewish Medical Center where she served as chief fellow. Dr. Vaynkof is a member of the American Association of Clinical Endocrinologists (AACE). Her clinical areas of expertise are diagnosis and management of thyroid disorders, performing thyroid ultrasounds in office, evaluation and care of Type 1 and Type 2 Diabetes including management of insulin pumps and continuous glucose monitors, as well as of other endocrine problems such as osteoporosis, parathyroid disease, PCOS, adrenal and pituitary diseases. Dr. Vaynkof speaks English and Russian.

Joseph Schafer, D.C.

Dr. Schafer is certified by the National Board of Chiropractic Examiners. He is a graduate of New York Chiropractic College, completing his internship at the NYCC Syracuse Health Center. He was chosen for and completed an Orthopedic rotation with Syracuse Orthopedic Associates. He has extensive experience in diagnosis, treatment and management of sports and other traumatic injuries. Additional training includes pediatric chiropractic procedures. He is also certified in Wellness Management. He is licensed in New Jersey.

Simon Becker, DPM

Dr. Becker is Board Certified by the American Board of Lower Extremity Surgery and the American Association of Wound Care Surgeons and has been providing care to patients in New Jersey for over 20 years. Dr. Becker received his medical degree from Pennsylvania College of Podiatric Medicine and a B.S. in biology from Wilkes University. He completed his podiatric surgical residency at North Detroit General Hospital: Emphasis on trauma and reconstructive surgery of the foot and ankle. Dr. Becker has been a guest lecturer at Novartis Pharmaceutical and Bradley Pharmaceutical, where he also served as research consultant. He has been a guest speaker at the AED Health Education Conference and has served as a member of the Finish Line Medical Team for NY and Philadelphia marathons, as well as a teaching assistant in gross anatomy and lower extremity anatomy. In addition to his extensive credentials and years of experience, Dr. Becker is committed to providing a comprehensive level of compassionate care and state-of-the-art diagnostic and treatment options to patients of all ages and stages of life.

Sergey Grachev, MD, FACS

Dr. Grachev is certified by the American Board of Surgery and a Fellow of the American College of Surgeons. He is trained in the da Vinci Surgical System and has performed well over one hundred procedures using this state of the art, minimally invasive robotic technology. Dr. Grachev was a visiting fellow and international scholar at the Cleveland Clinic Foundation in Cleveland, Ohio. He completed a general surgery residency at Vanderbilt Medical Center in Nashville, TN, Metropolitan Group Hospitals in Chicago and was chief resident at the University of Illinois College of Medicine. He uses advanced surgical techniques, new technologies, and novel approaches to current problems in the field of traditional open general surgery and minimally invasive surgery.

Elena Ostrovsky, MS, RDN,CDN

Elena received her Bachelor’s and Master’s degrees in Food Service and Nutrition, with a concentration in Nutrition and Wellness, from Hunter College City University of New York. She completed her internship program at Beth Israel Medical Center in New York. Elena has worked in acute care hospital settings including Columbia University Presbyterian Medical Center, Downstate Medical Center, and Staten Island University Medical Center as a surgical, renal and ICU dietitian. She also has extensive experience in the private practice setting, counseling patients on topics relating to the management of diabetes, and other disorders. Elena also has experience in organizing and teaching Cardiovascular group classes for patients with CHF and post Coronary Artery Bypass Surgery as well as Weight Loss classes for morbidly obese patients. She has also worked as a nutrition consultant and run wellness programs for nursing home facilities and home care providers.

Office Staff

Roberta Bustamante, LPN – Clinical Manager

Carol Granese – Medical Lab Supervisor

Padma Patel – Medical Lab Technologist

Michael Magera – Massage Therapist/Physical Therapy Aide

Inna Fikhman – Medical Assistant

Michelle Rivera – Medical Assistant

Irina Zeltser – Ultrasound Technician

Barbara Balogh – Phlebotomist

Olga Tselichev – Front Desk Supervisor

Annie Cologna – Front Desk

Alexa Wolsky – Front Desk

Sonya Priven – Billing Assistant

Nataliya Voznyuk – Administrative Assistant

Natalia Gulyaeva – Billing Assistant