Our Staff
Lon Goldberg, D.O., F.A.C.E.P. – Medical Director

- Residency trained in Emergency Medicine, Columbia University.
- Board Certified, Emergency Medicine.
- Fellow of the American College of Emergency Physicians.
- 19 years of clinical experience in Emergency Medicine.
- 14 years administrative experience.
- Certified Medical Review Officer.
Alexander Krishtul, M.D.
- Residency trained in Family Medicine at Somerset Medical Center.
- Board Certified in Family Medicine.
- Post-Doctoral Fellow at Mount Sinai School of Medicine, NYC.
- Breast cancer research at Sloan-Kettering Cancer Center, NYC.
- Received “Letter of Recognition for Excellence in Care” from the President of the Medical and Dental Staff at Somerset Medical Center.
- Dr. Krishtul is proficient in Spanish and Russian.
Kevin Berg, M.D.
Dr. Berg earned his Medical Degree from Ross University School of Medicine and is currently the Chief Resident in Family Medicine at the University of Medicine and Dentistry of NJ-Robert Wood Johnson Medical School-Centra State Medical Center program. During the summer of 2010, Dr. Berg will further his education in a Geriatrics Fellowship program.
Sasha Steinlight, M.D.
Dr. Steinlight has earned her Medical Degree from the University of Medicine and Dentistry of NJ-NJ Medical School. She has completed her residency for Family Medicine at the University of Pennsylvania Family Medicine and Community Medicine. In addition, she has recently completed a Sports Medicine Fellowship at the University of Medicine and Dentistry of NJ-Robert Wood Johnson Medical School.
Michael Gerstmann, M.D.
Dr. Gerstmann has earned his Medical Degree from the University Of New Mexico School Of Medicine in 1993. He completed his Family Medicine Residency in Asheville, North Carolina and is Board Certified by the American Board of Family Medicine. He received his Bachelors degree from St. John’s College in Annapolis Maryland.
He has worked for many years in both Primary Care and in Emergency Medicine. In 1999, Dr. Gerstmann was named Westcare Physician of the year.
Dr. Gerstmann’s scope of practice includes: comprehensive healthcare for the individual and families, disease prevention, and evidence based medicine. In his spare time he enjoys listening to audio books, eating chocolate, instilling a love of science and nature in his children, and trying to outsmart the squirrels in his yard.

