
Douglas P Sieminski, DO
Family Medicine
Highlights
Age Groups Seen
- Adolescent 12-21
- Adult 21-65
- Older Adult >65
Languages
- English
Gender
MaleAbout Douglas P Sieminski
Professional Statement
Locations
- 33 Newton Sparta Road, Suite 1, Newton, NJ 07860
- Get Directions
- phone: 973-383-2244
- fax: 973-383-0448
Expertise
Education
- Residency: St. Barnabas Health System Union Hospital, Family Practice, 2006
- Internship: St. Barnabas Health System Union Hospital, Family Practice, 2004
- Medical School: New York College of Osteopathic Medicine of New York Institute of Technology, No Value Specified, 2003
Board Certifications
- Family Medicine/OMT: American Osteopathic Board of Family Physicians, 2006
Insurance
- Aetna
- Amerihealth
- Cigna
- Claritev
- Clover
- Consumer Health Network
- First MCO
- Horizon Blue Cross Blue Shield
- Humana
- Humana Military
- Magnacare
- Medicare
- Oxford (UHC)
- Prime Healthcare
- Qualcare - Oscar
- RR Medicare
- United Healthcare
- US Family Health Plan
Ratings & Reviews
4.9 out of 5
590 ratings, 124 reviewsThe Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
- 5 out of 5 starsReviewed on 4/1/2026
Dr Sieminski is a very caring doctor. He listens to the patient and doesn’t rush the visit.
- 5 out of 5 starsReviewed on 4/1/2026
Always a pleasure to see Dr. sieminski
- 5 out of 5 starsReviewed on 4/1/2026
The best
- 5 out of 5 starsReviewed on 4/1/2026
Easy to talk to, always calm. Very informative & caring.
- 5 out of 5 starsReviewed on 4/1/2026
Dr Sieminski is really great! Very smart and competent, as well as kind and caring. Highly recommend him��
- 5 out of 5 starsReviewed on 4/1/2026
Excellent doctor! Beyond comparison! Great listener and very caring!
- 5 out of 5 starsReviewed on 4/1/2026
He great because he listens to his patients
- 5 out of 5 starsReviewed on 4/1/2026
Thank You
- 5 out of 5 starsReviewed on 4/1/2026
Friendly, professional and helpful staff. Dr. Sieminski listened to me and let me ask questions about my bloodwork. He went over all the results that I was interested in knowing. Bright, clean and well organized office. Would recommend Dr. Sieminski and his office to anytime.
- 5 out of 5 starsReviewed on 4/1/2026
So thorough and very trustworthy!
- 5 out of 5 starsReviewed on 4/1/2026
Always so nice and gentle and makes sure i get better! Thanks Doctor!
- 5 out of 5 starsReviewed on 4/1/2026
He’s my hero. Great doctor takes care of the whole family. Knowledgeable and truly cares about his patients. Would recommend to everyone and I do.
- 5 out of 5 starsReviewed on 4/1/2026
Quick and right to the point with a very friendly and professional delivery!
- 5 out of 5 starsReviewed on 4/1/2026
Was very thorough, concerned and professional. He took the time to answer all my questions
- 5 out of 5 starsReviewed on 4/1/2026
The best
- 5 out of 5 starsReviewed on 3/1/2026
Great visit like always. Thank you!!!!!.
- 3 out of 5 starsReviewed on 3/1/2026
Felt like the last 3 years of working closely with my psych was dismissed in a matter of seconds bc of stigmas or judgement. Idk. Nice guy and I was late so maybe he was just rushed bc of my tardiness. I could take it or leave the experience tbh.
- 5 out of 5 starsReviewed on 3/1/2026
Great doctor.
- 5 out of 5 starsReviewed on 3/1/2026
Always very professional
- 5 out of 5 starsReviewed on 3/1/2026
Very kind and listens to you
- 5 out of 5 starsReviewed on 3/1/2026
He listens!
- 5 out of 5 starsReviewed on 3/1/2026
Very easy to talk to.
- 5 out of 5 starsReviewed on 3/1/2026
Awesome Doctor!
- 5 out of 5 starsReviewed on 3/1/2026
Very smart and kind doctor.
- 5 out of 5 starsReviewed on 3/1/2026
He is a caring doctor that never rushes you.
- 5 out of 5 starsReviewed on 3/1/2026
Dr. Sieminski is always thorough in his evaluation of my symptoms. He asks questions and is careful to check my medical history to determine the correct treatment.
- 4 out of 5 starsReviewed on 3/1/2026
Wish he would spend more time during a exam.
- 5 out of 5 starsReviewed on 3/1/2026
He always listens to what I have to say. I never feel rushed.
- 5 out of 5 starsReviewed on 3/1/2026
Very kind. Was very clear about the process to figure out my stomach discomfort. Appt was right on time.
- 5 out of 5 starsReviewed on 3/1/2026
Everyone is always pleasant and willing to answer any questions.
- 5 out of 5 starsReviewed on 3/1/2026
Awesome Doctor
- 5 out of 5 starsReviewed on 3/1/2026
Dr Sieminski truly goes above and beyond for his patients and addresses every concern and question with complete professionalism and comfort
- 5 out of 5 starsReviewed on 2/1/2026
Best doctor I've ever had.
- 5 out of 5 starsReviewed on 2/1/2026
Always a wonderful experience the office is run super efficiently!
- 5 out of 5 starsReviewed on 2/1/2026
Awesome’
- 5 out of 5 starsReviewed on 2/1/2026
Highly recommend! Best there is!!
- 5 out of 5 starsReviewed on 2/1/2026
Dr. Sieminski is a pleasant and affable doctor, and more importantly he is competent, conscientious and thorough.
- 5 out of 5 starsReviewed on 2/1/2026
Great care and does not rush the office visit
- 5 out of 5 starsReviewed on 2/1/2026
Always helpful and thoughtful! Covers the problem or sends you where they will!
- 5 out of 5 starsReviewed on 2/1/2026
Received excellent quality of care of this HCP & staff.
- 5 out of 5 starsReviewed on 2/1/2026
Good visit
- 5 out of 5 starsReviewed on 2/1/2026
Very thorough!
- 5 out of 5 starsReviewed on 2/1/2026
Dr Seminski always answers my questions in an easy manner and has helper both my husband and myself .we are very happy to have him as our doctor.
- 5 out of 5 starsReviewed on 2/1/2026
I've been going to Dr. Sieminski since I was a teenager (35 now). Great doctor
- 5 out of 5 starsReviewed on 1/1/2026
Very nice and knowledgeable
- 5 out of 5 starsReviewed on 1/1/2026
Dr Sieminski was wonderful. Took the time to listen to my concerns and set up a plan to figure everything out.
- 5 out of 5 starsReviewed on 1/1/2026
Very helpful
- 5 out of 5 starsReviewed on 1/1/2026
Nice interaction!
- 4 out of 5 starsReviewed on 1/1/2026
I would like the doctor to spend more time with the patient.
- 5 out of 5 starsReviewed on 1/1/2026
Very thorough and good listener.
- 5 out of 5 starsReviewed on 1/1/2026
Outstanding Doctor! Always provides the best remedy!
- 5 out of 5 starsReviewed on 1/1/2026
Wonderful doctor to deal with, listens to patients questions and needs.
- 5 out of 5 starsReviewed on 1/1/2026
My PCP for many years. Dr. Sieminski always got it right. Pleasure to work with him!
- 5 out of 5 starsReviewed on 1/1/2026
Dr SIMINSKI is always very friendly and professional.
- 1 out of 5 starsReviewed on 1/1/2026
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.
- 5 out of 5 starsReviewed on 12/1/2025
In the words of Tina Turner, “simply the best”.
- 5 out of 5 starsReviewed on 12/1/2025
Long time patient and find him to be very attentive, caring and kind.
- 5 out of 5 starsReviewed on 12/1/2025
He's always here for me.
- 5 out of 5 starsReviewed on 12/1/2025
Great Dr!
- 5 out of 5 starsReviewed on 12/1/2025
Thorough, timely and friendly.
- 5 out of 5 starsReviewed on 12/1/2025
Always knowledgeable, caring & answers all question fully !!! He inspires trust and reliance. A great doctor !!!
- 5 out of 5 starsReviewed on 12/1/2025
Good attitude
- 5 out of 5 starsReviewed on 12/1/2025
The best!!!
- 5 out of 5 starsReviewed on 12/1/2025
I was given a virtual appointment for 10 and received the call 45 minutes early which was great. He is the best!
- 5 out of 5 starsReviewed on 12/1/2025
Fantastic Dr. who really takes time to listen and puts me at ease each time I need help with my health issues .
- 5 out of 5 starsReviewed on 12/1/2025
Very thorough, very kind. Takes the time to listen.
- 5 out of 5 starsReviewed on 12/1/2025
He is an excellent Doctor
- 5 out of 5 starsReviewed on 12/1/2025
I never feel rushed and always feel heard. Always keeping me on track with my Healthcare. Thank you!
- 5 out of 5 starsReviewed on 12/1/2025
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!
- 5 out of 5 starsReviewed on 12/1/2025
Love Dr sieminski. Awesome Dr
- 5 out of 5 starsReviewed on 12/1/2025
He takes his time with his patients.
- 5 out of 5 starsReviewed on 12/1/2025
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.
- 5 out of 5 starsReviewed on 11/1/2025
Flu Shot
- 5 out of 5 starsReviewed on 11/1/2025
He is the best GP. Around.
- 5 out of 5 starsReviewed on 11/1/2025
He continues to provide unmatched care.
- 5 out of 5 starsReviewed on 11/1/2025
Professional, polite, considerate. Always direct clear communication
- 5 out of 5 starsReviewed on 11/1/2025
Awesome Dr. Takes the time to listen to you.
- 5 out of 5 starsReviewed on 11/1/2025
Always helpful & informative
- 5 out of 5 starsReviewed on 11/1/2025
I’ve been seeing Dr. Sieminski for many years, and he’s exactly the kind of doctor you want as you get older—patient, thorough, and someone who actually listens. He recently treated my injured finger, and as always, he took the time to explain everything and make sure I felt cared for instead of rushed. If you’re in NJ and want a doctor who’s skilled, compassionate, and genuinely attentive, he’s the one to see. My finger might be injured, but my trust in Dr. Sieminski is in perfect health. Five stars—two thumbs up… plus one very well-supported finger. ����
- 5 out of 5 starsReviewed on 11/1/2025
Best dr
- 5 out of 5 starsReviewed on 11/1/2025
Love my doctor, he most likely saved my life twice by reading my blood work.
- 5 out of 5 starsReviewed on 11/1/2025
Smart and kind.
- 5 out of 5 starsReviewed on 11/1/2025
Dr. Sieminski takes his time to listen and makes you feel comfortable.
- 5 out of 5 starsReviewed on 11/1/2025
Great doctor.
- 5 out of 5 starsReviewed on 11/1/2025
Best there is!
- 5 out of 5 starsReviewed on 11/1/2025
Very through Doctor. Has my best interest. Feel very confident in this Doctor.
- 5 out of 5 starsReviewed on 11/1/2025
Always friendly and personable.
- 1 out of 5 starsReviewed on 11/1/2025
Can I give -1 star. Nothing wrong with me. Talking to me like I'm not healthy. Went for a simple test. Just because drug companies want Dr's to persuade patients to be on something doesn't mean I am not healthy. Dr's don't know how to think for themselves anymore. Went an saw another Dr and they gave me a clean bill of health. Nothing wrong with me. Stay away from this quack.
- 5 out of 5 starsReviewed on 11/1/2025
incredibly professional and kind! i will be recommending dr sieminski to everyone!
- 5 out of 5 starsReviewed on 10/1/2025
Kind courteous and quick
- 5 out of 5 starsReviewed on 10/1/2025
Always professional and personal
- 5 out of 5 starsReviewed on 10/1/2025
Dr. Sieminski is A GREAT DOCTOR !!!!
- 5 out of 5 starsReviewed on 10/1/2025
Always responsive to my health needs.
- 5 out of 5 starsReviewed on 10/1/2025
Dr Siemenski is caring and listens to any concerns.
- 5 out of 5 starsReviewed on 10/1/2025
Dr Sieminski is always very pleasant and answers all your questions.
- 5 out of 5 starsReviewed on 10/1/2025
Great dr and staff
- 5 out of 5 starsReviewed on 10/1/2025
Awesome service.
- 5 out of 5 starsReviewed on 10/1/2025
Very attentive and patient! He has been my primary for many years and I will never change doctors!
- 5 out of 5 starsReviewed on 10/1/2025
Dr D. And his staff are excellent. Professional, courteous and knowledgeable. Highly recommend
- 5 out of 5 starsReviewed on 10/1/2025
Thank you for the immediate telehealth appointment and clearly and concisely determining my next steps. Very professional and helpful.
- 5 out of 5 starsReviewed on 10/1/2025
He really cares about people which is hard to find today’s day and age
- 5 out of 5 starsReviewed on 9/1/2025
Very thorough. Devotes time for questions. Caring and friendly
- 5 out of 5 starsReviewed on 9/1/2025
Always very helpful and listens to what you sat to him.
- 5 out of 5 starsReviewed on 9/1/2025
Dr. Seiminski is a kind and professional man but, more importantly, he is thorough when looking at my overall health. He has helped me a great deal over the years.
- 5 out of 5 starsReviewed on 9/1/2025
Thorough. Genuinely interested in your well being. Happy with him.
- 5 out of 5 starsReviewed on 9/1/2025
He knows his stuff.
- 4 out of 5 starsReviewed on 9/1/2025
Fine visit
- 5 out of 5 starsReviewed on 9/1/2025
Dr. Sieminski is by far the best doctor I’ve ever been to. He’s a very professional caring. and compassionate doctor He listens to your problems and never tries to rush you out. those type of doctors are hard to come by these days.
- 5 out of 5 starsReviewed on 9/1/2025
Absolute professional
- 5 out of 5 starsReviewed on 9/1/2025
My primary was unavailable so Dr. Sieminski stepped up and not only agreed to see me same day, via Telehealth, but called me 3 hours earlier. He was able to diagnose and prescribe within minutes allowing me to quickly start the healing process. I’m very grateful for his professionalism and concern.
- 5 out of 5 starsReviewed on 9/1/2025
Best doctor ever very kind patient and understanding
- 5 out of 5 starsReviewed on 9/1/2025
Top Doc! Grateful
- 5 out of 5 starsReviewed on 8/1/2025
Got an appointment same day I needed it to treat poison ivy! Very short waiting time. Dr Sieminski is always a pleasure to deal with and explains each situation thoroughly.
- 5 out of 5 starsReviewed on 8/1/2025
He is simply the best at what he does!
- 5 out of 5 starsReviewed on 8/1/2025
Dr Sieminski is an exceptional and caring dr
- 5 out of 5 starsReviewed on 8/1/2025
Dr. Sieminski is pleasant & listens to your medical needs & concerns!
- 5 out of 5 starsReviewed on 8/1/2025
Excellent Doctor!! Timing is right on point.
- 5 out of 5 starsReviewed on 8/1/2025
Always though and concern for my health.
- 5 out of 5 starsReviewed on 8/1/2025
Very helpful
- 5 out of 5 starsReviewed on 8/1/2025
Great doctor who cares about his patients
- 5 out of 5 starsReviewed on 8/1/2025
He’s thorough, caring and doesn’t make you wait
- 4 out of 5 starsReviewed on 8/1/2025
I would like the doctor to spend more time with me during my annual physical. My old doctor Dr. Gloria would take his time to talk to me more and I did not feel rushed.
- 5 out of 5 starsReviewed on 8/1/2025
He’s a wonderful, attentive doctor. We couldn’t be happier
- 5 out of 5 starsReviewed on 8/1/2025
Was able to do tele visit immediately after contacting office.
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