Neurologist, Chiropractor, Physical Therapist

Meet the Team

Are you having a difficult time finding a physician that truly cares about your health?

At Crystal Ray Medical, our patients are our number one priority. We have a fully committed staff of doctors who have been practicing and studying medicine for years, all specializing in a variety of medical fields.

Learn more about them below

Dr. Igor Cohen

Neurologist/Pain Management

Dr. Igor Cohen brings over 25 years of expertise in clinical neurology, neurophysiology, and pain management. He specializes in performing and interpreting a broad range of diagnostic tests, including EMG/NCS, EEG, SSEP, BAER, VNG, and CD/TCD. Dr. Cohen is also highly skilled in therapeutic pain management techniques, including the use of Botox injections. Known for his personalized approach, dedication, and compassion, he has earned the trust of thousands of patients across the tri-state area.

Dr. Mark Kostin

IM for Workers' Compensation

Dr. Mark Kostin is an experienced Internal Medicine physician with over 30 years of practice. Based in the Rego Park office, he focuses on the wellness, preventive care, and treatment of workers’ compensation patients. Dr. Kostin is known for his patient-centered approach, clinical expertise, and dedication to providing high-quality, individualized care.

Elmira Samkova, L.Ac

Acupuncturist

Elmira Samkova holds a Master of Science degree in Acupuncture and Oriental Medicine. With over 20 years of experience, she combines her formal training with a deep passion for helping others. Elmira is committed to a natural, non-invasive approach to healing, delivering care that reflects both her expertise and compassion.

Brian Bak, D.C.

Chiropractor

Brian Bak is a skilled chiropractor specializing in the treatment of neck and back conditions. He is dedicated to helping patients restore mobility, reduce pain, and improve overall function through personalized, non-invasive care. With a patient-centered approach, Brian focuses on delivering effective, evidence-based treatments to support long-term wellness.

Nelson Castro, D.C.

Chiropractor

Dr. Nelson W. Castro brings 24 years of experience in a multidisciplinary clinical setting. In 2014, he was recognized as Astoria’s Best Chiropractor for his outstanding care. He is a strong advocate for spinal decompression and manipulation under anesthesia as effective treatments for chronic disc conditions.