Our Doctors

Experienced medical professionals who provide patient-centered care and who listen closely when you speak.


Thomas A. Schwartzer

MD, Ph.D

Dr. Schwartzer is a Board-Certified Internist and one of our founding partners. His special interests include chronic disease management, clinical nutrition, personalized medicine, and the provision of comprehensive care across the adult life spectrum.

Dr. Schwartzer received his undergraduate training at Thomas A. Edison College and Rutgers University. He obtained a Master’s degree at Wagner College in Medical Bacteriology and Ph.D. at UMDNJ-Rutgers University in Immunology/Virology. He studied Medicine at UMDNJ-Robert Wood Johnson Medical School and completed his residency training at St. Peter’s University Hospital.

He has published over 35 medical research papers and has been an Associate Professor of Medicine at Robert Wood Johnson Medical School, and Clinical Assistant Professor in Medicine at Drexel Medical School. He is a member of the American College of Physicians and the American Board of Medicine.


Tariq A. Rizvi


Dr. Rizvi is a Board-Certified Internist and co-founder of CJIMA. He earned his Bachelor of Medicine and Bachelor of Surgery at Dow Medical College in Pakistan and completed his residency in Internal Medicine at St. Peter’s Medical Center in New Brunswick, New Jersey.

He has been a hospitalist and emergency department physician and acted as a consultant to an important World Health Organization survey. He co-authored a periodical published in the American College of Physicians Residents Abstracts Competition in 1983 and currently teaches at Drexel University.

Dr. Rizvi is a member of the Board of Vascular Quality Assurance at St. Peter’s University Hospital in New Brunswick, New Jersey, and is also a Delegate to the Medical Society of New Jersey from Middlesex County and on the Board of Trustees of the Middlesex County Medical Society. He speaks English and Urdu.


Deepak K. Jain


Dr. Jain is a Board-Certified Internist and clinical assistant professor of Drexel Medical School. He received his Bachelor of Science degree from Stony Brook University and medical education at Saint George’s Medical School. He completed his residency at Robert Wood Johnson University Hospital. Dr. Jain speaks English and Hindi.


Christina Wang-Epstein

MD, Ph.D

Dr. Wang-Epstein is Board-Certified Internist and has been with our practice since 2007 and is Board-Certified in Internal Medicine. She received her medical degree from Beijing Medical University in China and her Ph.D. in Anatomy and Cell Biology from the State University of New York, Health Science Center at Brooklyn.

Dr. Wang-Epstein completed her internship at Englewood Hospital and Medical Center and her residency at Jersey City Medical Center which are both affiliated with Mount Sinai School of Medicine. Dr. Wang-Epstein is fluent in both Mandarin and English.


Abigail Lore


Dr. Lore is a Board-Certified Internist and graduate of Drexel University’s College of Medicine. Born and raised in Bridgewater, NJ, she is excited to start new relationships with patients that will last for many years.

Dr. Lore received her Bachelor of Science from Fairleigh Dickinson University in Madison, NJ, and then received her Medical degree from Ross University Medical School. Dr. Lore’s interests outside of medicine include lacrosse and running and she was a member of the Fairleigh Dickinson University women’s lacrosse team and continues to play in alumni games each year. She is also an avid runner and often participates in local races.


Amy Sirkin


Ms. Sirkin is an experienced Adult Nurse Practitioner certified by the AANP. She received her Master’s and Doctorate degrees from the University of Medicine and Dentistry-New Jersey. She has been a Nurse Practitioner with CJIMA since 2004.

Amy previously worked as adjunct faculty in the University of Medicine and Dentistry-NJ nurse practitioner program from 1999-2010 and as a Nurse Practitioner at Saint Peter’s University Hospital in the departments of Cardiology and Internal Medicine.


Adriana Ackerman


Ms. Ackerman is an Advanced Practice Nurse in Adult Health with a BSN from Wagner College. She also earned her MSN as an Adult Nurse Practitioner from Seton Hall University in 2006.

Adriana has practiced as an APN at CJIMA since 2006 and is affiliated with St. Peter’s University Hospital and Willow Creek Rehabilitation and Care Center. She lives in Somerset County with her husband and two sons and enjoys spending time with her family, organic gardening, cooking, and volunteering at her son’s school.


Mary Elizabeth Schwartzer


Ms. Schwartzer holds a Bachelor’s Degree in Nutritional Sciences from Rutgers University. She completed her dietetic internship at the University of Medicine and Dentistry-New Jersey, where she was trained in clinical and community dietetics.

Mary Elizabeth is a member of the Academy of Nutrition and Dietetics, the New Jersey Dietetic Association, Nutrition Entrepreneurs Dietetics Practice Group, and the Medical Nutrition Practice Group. As a Registered Dietitian, Mary Elizabeth provides individual nutrition counseling to help patients identify and meet their nutrition goals.

She works closely with our medical team to provide medical nutrition therapy for the treatment and prevention of disease, management of medical conditions, and promotion of overall health and wellness.

Our doctors have a shared objective

It is to provide compassionate, comprehensive, and personalized care to all our patients that exceeds other clinics and hospitals in not only treating diseases, but also preventing and diagnosing them.