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.
Very knowledgeable, patient, and caring.
(5 days ago)
Aug-2026
He’s the gold standard
(1 week ago)
Aug-2026
Has provided excellent care for me for 10-12 years! Love that guy!
(1 week ago)
Aug-2026
The best Doctor I’ve ever had! Great attention to detail, really listens, he covers all the bases of possibilities, and his treatment always takes care of my ailments.
(1 week ago)
Aug-2026
He’s very easy to talk to & answers all my questions. Follows up with all my test results.
(2 weeks ago)
Aug-2026
I have a very good appointment with Doctor Sieminski. I had 3 different ailments that I was concerned about and he had answers for all three issues. I was in and out ( including a blood test).
(2 weeks ago)
Aug-2026
Listen to your need very carefully and provide you the best solution i been seeing this doctor more than fifteen years he is the best
(2 weeks ago)
Aug-2026
Always a pleasure to see Dr Sieminsky he is great!!
(2 weeks ago)
Aug-2026
Fantastic Doctor
(2 weeks ago)
Aug-2026
Caring and always looking out for his patients ...everyone should be so lucky to have Dr S as their doc
(2 weeks ago)
Aug-2026
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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.
See other doctors in Skylands Medical Group Andover
Very knowledgeable, patient, and caring.
He’s the gold standard
Has provided excellent care for me for 10-12 years! Love that guy!
The best Doctor I’ve ever had! Great attention to detail, really listens, he covers all the bases of possibilities, and his treatment always takes care of my ailments.
He’s very easy to talk to & answers all my questions. Follows up with all my test results.
I have a very good appointment with Doctor Sieminski. I had 3 different ailments that I was concerned about and he had answers for all three issues. I was in and out ( including a blood test).
Listen to your need very carefully and provide you the best solution i been seeing this doctor more than fifteen years he is the best
Always a pleasure to see Dr Sieminsky he is great!!
Fantastic Doctor
Caring and always looking out for his patients ...everyone should be so lucky to have Dr S as their doc