Buxmont Pulmonary & Sleep Medicine, P.C.

(215) 361-4423

By Appointment
Mon - Fri, 8:00 A.M. - 6:00 P.M.

Our Team

Rubina Haider


Dr. Rubina Haidar is a well-respected physician in our community. She is highly regarded by her colleagues and admired by thousands of her patients. She trained at the prestigious Baylor College of Medicine in Houston. She was fortunate to train with world-famous Dr. Max Hirshkowitz, who is one of the iconic pioneers in the field of Sleep Medicine. She is board certified in Pulmonary Medicine and Sleep Medicine by the American Board of Internal Medicine. Read More...

Sarah Rizvi, M.D.

Sarah Rizvi, MD

Dr. Sarah Rizvi is a Board Certified physician who specializes in both adult and pediatric Sleep Medicine. She completed her residency training with a departmental distinction in Sleep Medicine at UT Southwestern, which ranks among the top 20 medical schools in the nation. From there, she went on to complete fellowship training at National Jewish Health (University of Colorado), a world leader in innovative research. She believes strongly in patient centered and compassionate care.

Lawton Delisser, M.D.


Dr. Delisser is boarded in Sleep Medicine by the American Board of Sleep Medicine. He has over 20 years of experience in treating sleep disorders. His interests include sleep apnea, insomnia, and disorders of excessive daytime sleepiness. Dr. Delisser specializes in adult and pediatric sleep services.

Diana Lengel, CRNP