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.
Fantastic Dr. who really takes time to listen and puts me at ease each time I need help with my health issues .
(6 days ago)
Dec-2025
Very thorough, very kind. Takes the time to listen.
(1 week ago)
Dec-2025
He is an excellent Doctor
(1 week ago)
Dec-2025
He’s so easy to talk to & very knowledgeable and he’s available when I need to see him. His staff is always polite and helpful, they are a pleasure to deal with.
(1 week ago)
Dec-2025
Thank you, Dr. Sieminski and many thanks to Tammy. She persisted in getting me the appointment I needed to see a consulting doc. Her dedication to getting the job done was admirable!
(1 week ago)
Dec-2025
I never feel rushed and always feel heard. Always keeping me on track with my Healthcare. Thank you!
(1 week ago)
Dec-2025
Love Dr sieminski. Awesome Dr
(2 weeks ago)
Dec-2025
He takes his time with his patients.
(2 weeks ago)
Dec-2025
Flu Shot
(3 weeks ago)
Nov-2025
Professional, polite, considerate. Always direct clear communication
(3 weeks ago)
Nov-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.
Fantastic Dr. who really takes time to listen and puts me at ease each time I need help with my health issues .
Very thorough, very kind. Takes the time to listen.
He is an excellent Doctor
He’s so easy to talk to & very knowledgeable and he’s available when I need to see him. His staff is always polite and helpful, they are a pleasure to deal with.
Thank you, Dr. Sieminski and many thanks to Tammy. She persisted in getting me the appointment I needed to see a consulting doc. Her dedication to getting the job done was admirable!
I never feel rushed and always feel heard. Always keeping me on track with my Healthcare. Thank you!
Love Dr sieminski. Awesome Dr
He takes his time with his patients.
Flu Shot
Professional, polite, considerate. Always direct clear communication