Dr. Douglas P. Sieminski, D.O., is board-certified in Family Practice through the American Board of Osteopathic Family Physicians. He earned his medical degree from New York College of Osteopathic Medicine in 2003 and completed his residency at Union Hospital in 2006, where he served as Chief Resident.
Dr. Douglas P. Sieminski, D.O., is board-certified in Family Practice through the American Board of Osteopathic Family Physicians. He earned his medical degree from New York College of Osteopathic Medicine in 2003 and completed his residency at Union Hospital in 2006, where he served as Chief Resident.
The reviews listed below were collected independently of Skylands Medical Group Andover through rater8. Each review represents an authentic and verified patient experience.
Absolute professional
Sep-2025
My primary was unavailable so Dr. Sieminski stepped up and not only agreed to see me same day, via Telehealth, but called me 3 hours earlier. He was able to diagnose and prescribe within minutes allowing me to quickly start the healing process. I’m very grateful for his professionalism and concern.
Sep-2025
Best doctor ever very kind patient and understanding
Sep-2025
Top Doc! Grateful
Sep-2025
Got an appointment same day I needed it to treat poison ivy! Very short waiting time. Dr Sieminski is always a pleasure to deal with and explains each situation thoroughly.
Aug-2025
He is simply the best at what he does!
Aug-2025
Dr Sieminski is an exceptional and caring dr
Aug-2025
Dr. Sieminski is pleasant & listens to your medical needs & concerns!
Aug-2025
Excellent Doctor!! Timing is right on point.
Aug-2025
Always though and concern for my health.
Aug-2025
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Skylands Medical Group Andover
33 Newton-Sparta Road Suite 1 Newton, NJ 07860
Dr. Douglas P. Sieminski, D.O., graduated from New York College of Osteopathic Medicine, Old Westbury, New York, in May 2003. He completed his residency training in Family Practice in June 2006 at Union Hospital (Affiliate of St. Barnabas Health Care System), Union, New Jersey, where he was the Chief Resident from 2004 to 2006. He also completed his internship at Union Hospital in June 2004. Dr. Sieminski attended Drew University, Madison, New Jersey, where he received a Bachelor of Arts Degree in Biology in May 1999.
Dr. Sieminski is Board Certified in Family Practice through the American Board of Osteopathic Family Physicians. He is a member of the American Osteopathic Association, American College of Osteopathic Family Practitioners, and New Jersey Association of Osteopathic Physicians and Surgeons.
Absolute professional
My primary was unavailable so Dr. Sieminski stepped up and not only agreed to see me same day, via Telehealth, but called me 3 hours earlier. He was able to diagnose and prescribe within minutes allowing me to quickly start the healing process. I’m very grateful for his professionalism and concern.
Best doctor ever very kind patient and understanding
Top Doc! Grateful
Got an appointment same day I needed it to treat poison ivy! Very short waiting time. Dr Sieminski is always a pleasure to deal with and explains each situation thoroughly.
He is simply the best at what he does!
Dr Sieminski is an exceptional and caring dr
Dr. Sieminski is pleasant & listens to your medical needs & concerns!
Excellent Doctor!! Timing is right on point.
Always though and concern for my health.