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.
Great Doctor
(2 days ago)
Jul-2026
Great doctor
(1 week ago)
Jul-2026
I am very happy with Dr. Sieminski. He has a great bed-side manner, but also takes my health seriously.
(1 week ago)
Jul-2026
Dr Sieminski is a great doctor for me. He is very knowledgeable, but more importantly to me is that he listens to my problems and helps me with solutions. I really appreciate that.
(2 weeks ago)
Jun-2026
Dr. Sieminski is one of the best. He is very thorough, caring, and very patient and explaining the diagnosis and he plan to recovery. Best primary care physician I know.
(2 weeks ago)
Jun-2026
He’s always patient and very knowledgeable. I highly recommend him
(2 weeks ago)
Jun-2026
Always very friendly and very helpful and very understanding of what needs to be addressed concerning my well being.
Everyone there are very friendly and very helpful.
(2 weeks ago)
Jun-2026
Dr. Sieminski is great to deal with and gets to the point which I like and works with whatever you need.
(3 weeks ago)
Jun-2026
Nice friendly doctor.
(3 weeks ago)
Jun-2026
Great Dr. , very attentive and understanding of your concerns
(1 month ago)
Jun-2026
Read More
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.
See other doctors in Skylands Medical Group Andover
Great Doctor
Great doctor
I am very happy with Dr. Sieminski. He has a great bed-side manner, but also takes my health seriously.
Dr Sieminski is a great doctor for me. He is very knowledgeable, but more importantly to me is that he listens to my problems and helps me with solutions. I really appreciate that.
Dr. Sieminski is one of the best. He is very thorough, caring, and very patient and explaining the diagnosis and he plan to recovery. Best primary care physician I know.
He’s always patient and very knowledgeable. I highly recommend him
Always very friendly and very helpful and very understanding of what needs to be addressed concerning my well being. Everyone there are very friendly and very helpful.
Dr. Sieminski is great to deal with and gets to the point which I like and works with whatever you need.
Nice friendly doctor.
Great Dr. , very attentive and understanding of your concerns