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.
I would like the doctor to spend more time with the patient.
(2 days ago)
Jan-2026
Very thorough and good listener.
(2 weeks ago)
Jan-2026
Outstanding Doctor! Always provides the best remedy!
(3 weeks ago)
Jan-2026
Wonderful doctor to deal with, listens to patients questions and needs.
(3 weeks ago)
Jan-2026
My PCP for many years. Dr. Sieminski always got it right. Pleasure to work with him!
(3 weeks ago)
Jan-2026
Dr SIMINSKI is always very friendly and professional.
(3 weeks ago)
Jan-2026
Rude and not caring. Refused to send needed paperwork via email. Called me at the wrong time a hour earlier and interrupted my therapy appointment.
(3 weeks ago)
Jan-2026
In the words of Tina Turner, “simply the best”.
(1 month ago)
Dec-2025
Long time patient and find him to be very attentive, caring and kind.
(1 month ago)
Dec-2025
He's always here for me.
(1 month ago)
Dec-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.
I would like the doctor to spend more time with the patient.
Very thorough and good listener.
Outstanding Doctor! Always provides the best remedy!
Wonderful doctor to deal with, listens to patients questions and needs.
My PCP for many years. Dr. Sieminski always got it right. Pleasure to work with him!
Dr SIMINSKI is always very friendly and professional.
Rude and not caring. Refused to send needed paperwork via email. Called me at the wrong time a hour earlier and interrupted my therapy appointment.
In the words of Tina Turner, “simply the best”.
Long time patient and find him to be very attentive, caring and kind.
He's always here for me.