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.
Friendly, courteous and efficient!
Rated 5 out of 5 stars
(3 days ago)
Oct-2026
Dr. Sieminski takes his time, is always very thorough and answers all questions.
Rated 5 out of 5 stars
(5 days ago)
Oct-2026
I am extremely blessed to be under the care of such an amazing doctor. He is the best.
Rated 5 out of 5 stars
(1 week ago)
Oct-2026
Compassion, understanding always there to listen
Rated 5 out of 5 stars
(1 week ago)
Oct-2026
The best doctor.
Rated 5 out of 5 stars
(2 weeks ago)
Oct-2026
The BEST
Rated 5 out of 5 stars
(2 weeks ago)
Sep-2026
Dr. Sieminski Is a Terrific Doctor and has a Wonderful Personality. I can ask him anything and he Always has a Knowledgeable and Caring Response. Thanks 🙏 Dr. Sieminski !
Rated 5 out of 5 stars
(2 weeks ago)
Sep-2026
Always a pleasure to visit with Dr. Sieminski
Rated 5 out of 5 stars
(3 weeks ago)
Sep-2026
Dr. Was professional and caring and making sure his patient gets the proper care
Rated 5 out of 5 stars
(3 weeks ago)
Sep-2026
Dr Sieminski is very caring doctor. He takes his time and listen to you and help you.
Rated 5 out of 5 stars
(1 month ago)
Sep-2026
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
Friendly, courteous and efficient!
Dr. Sieminski takes his time, is always very thorough and answers all questions.
I am extremely blessed to be under the care of such an amazing doctor. He is the best.
Compassion, understanding always there to listen
The best doctor.
The BEST
Dr. Sieminski Is a Terrific Doctor and has a Wonderful Personality. I can ask him anything and he Always has a Knowledgeable and Caring Response. Thanks 🙏 Dr. Sieminski !
Always a pleasure to visit with Dr. Sieminski
Dr. Was professional and caring and making sure his patient gets the proper care
Dr Sieminski is very caring doctor. He takes his time and listen to you and help you.