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Douglas P Sieminski

Douglas P Sieminski, DO

Family Medicine

Accepting New Patients
Online Booking
Video Visit
Need help scheduling? Call 973-383-2244

Highlights

Age Groups Seen

  • Adolescent 12-21
  • Adult 21-65
  • Older Adult >65

Languages

  • English

Gender

Male

About Douglas P Sieminski

Professional Statement

Dr. Sieminski 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. 

Locations

    • 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

Please contact the doctor's office directly to confirm acceptance of insurance.
Search plans
  • 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 reviews

The 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.

Search reviews
    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 4/1/2026

    Always a pleasure to see Dr. sieminski

    5 out of 5 stars
    Reviewed on 4/1/2026

    The best

    5 out of 5 stars
    Reviewed on 4/1/2026

    Easy to talk to, always calm. Very informative & caring.

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 4/1/2026

    Excellent doctor! Beyond comparison! Great listener and very caring!

    5 out of 5 stars
    Reviewed on 4/1/2026

    He great because he listens to his patients

    5 out of 5 stars
    Reviewed on 4/1/2026

    Thank You

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 4/1/2026

    So thorough and very trustworthy!

    5 out of 5 stars
    Reviewed on 4/1/2026

    Always so nice and gentle and makes sure i get better! Thanks Doctor!

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 4/1/2026

    Quick and right to the point with a very friendly and professional delivery!

    5 out of 5 stars
    Reviewed on 4/1/2026

    Was very thorough, concerned and professional. He took the time to answer all my questions

    5 out of 5 stars
    Reviewed on 4/1/2026

    The best

    5 out of 5 stars
    Reviewed on 3/1/2026

    Great visit like always. Thank you!!!!!.

    3 out of 5 stars
    Reviewed 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 stars
    Reviewed on 3/1/2026

    Great doctor.

    5 out of 5 stars
    Reviewed on 3/1/2026

    Always very professional

    5 out of 5 stars
    Reviewed on 3/1/2026

    Very kind and listens to you

    5 out of 5 stars
    Reviewed on 3/1/2026

    He listens!

    5 out of 5 stars
    Reviewed on 3/1/2026

    Very easy to talk to.

    5 out of 5 stars
    Reviewed on 3/1/2026

    Awesome Doctor!

    5 out of 5 stars
    Reviewed on 3/1/2026

    Very smart and kind doctor.

    5 out of 5 stars
    Reviewed on 3/1/2026

    He is a caring doctor that never rushes you.

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 3/1/2026

    Wish he would spend more time during a exam.

    5 out of 5 stars
    Reviewed on 3/1/2026

    He always listens to what I have to say. I never feel rushed.

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 3/1/2026

    Everyone is always pleasant and willing to answer any questions.

    5 out of 5 stars
    Reviewed on 3/1/2026

    Awesome Doctor

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 2/1/2026

    Best doctor I've ever had.

    5 out of 5 stars
    Reviewed on 2/1/2026

    Always a wonderful experience the office is run super efficiently!

    5 out of 5 stars
    Reviewed on 2/1/2026

    Awesome’

    5 out of 5 stars
    Reviewed on 2/1/2026

    Highly recommend! Best there is!!

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 2/1/2026

    Great care and does not rush the office visit

    5 out of 5 stars
    Reviewed on 2/1/2026

    Always helpful and thoughtful! Covers the problem or sends you where they will!

    5 out of 5 stars
    Reviewed on 2/1/2026

    Received excellent quality of care of this HCP & staff.

    5 out of 5 stars
    Reviewed on 2/1/2026

    Good visit

    5 out of 5 stars
    Reviewed on 2/1/2026

    Very thorough!

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 2/1/2026

    I've been going to Dr. Sieminski since I was a teenager (35 now). Great doctor

    5 out of 5 stars
    Reviewed on 1/1/2026

    Very nice and knowledgeable

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 1/1/2026

    Very helpful

    5 out of 5 stars
    Reviewed on 1/1/2026

    Nice interaction!

    4 out of 5 stars
    Reviewed on 1/1/2026

    I would like the doctor to spend more time with the patient.

    5 out of 5 stars
    Reviewed on 1/1/2026

    Very thorough and good listener.

    5 out of 5 stars
    Reviewed on 1/1/2026

    Outstanding Doctor! Always provides the best remedy!

    5 out of 5 stars
    Reviewed on 1/1/2026

    Wonderful doctor to deal with, listens to patients questions and needs.

    5 out of 5 stars
    Reviewed on 1/1/2026

    My PCP for many years. Dr. Sieminski always got it right. Pleasure to work with him!

    5 out of 5 stars
    Reviewed on 1/1/2026

    Dr SIMINSKI is always very friendly and professional.

    1 out of 5 stars
    Reviewed 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 stars
    Reviewed on 12/1/2025

    In the words of Tina Turner, “simply the best”.

    5 out of 5 stars
    Reviewed on 12/1/2025

    Long time patient and find him to be very attentive, caring and kind.

    5 out of 5 stars
    Reviewed on 12/1/2025

    He's always here for me.

    5 out of 5 stars
    Reviewed on 12/1/2025

    Great Dr!

    5 out of 5 stars
    Reviewed on 12/1/2025

    Thorough, timely and friendly.

    5 out of 5 stars
    Reviewed on 12/1/2025

    Always knowledgeable, caring & answers all question fully !!! He inspires trust and reliance. A great doctor !!!

    5 out of 5 stars
    Reviewed on 12/1/2025

    Good attitude

    5 out of 5 stars
    Reviewed on 12/1/2025

    The best!!!

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed 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 stars
    Reviewed on 12/1/2025

    Very thorough, very kind. Takes the time to listen.

    5 out of 5 stars
    Reviewed on 12/1/2025

    He is an excellent Doctor

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed 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 stars
    Reviewed on 12/1/2025

    Love Dr sieminski. Awesome Dr

    5 out of 5 stars
    Reviewed on 12/1/2025

    He takes his time with his patients.

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 11/1/2025

    Flu Shot

    5 out of 5 stars
    Reviewed on 11/1/2025

    He is the best GP. Around.

    5 out of 5 stars
    Reviewed on 11/1/2025

    He continues to provide unmatched care.

    5 out of 5 stars
    Reviewed on 11/1/2025

    Professional, polite, considerate. Always direct clear communication

    5 out of 5 stars
    Reviewed on 11/1/2025

    Awesome Dr. Takes the time to listen to you.

    5 out of 5 stars
    Reviewed on 11/1/2025

    Always helpful & informative

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 11/1/2025

    Best dr

    5 out of 5 stars
    Reviewed on 11/1/2025

    Love my doctor, he most likely saved my life twice by reading my blood work.

    5 out of 5 stars
    Reviewed on 11/1/2025

    Smart and kind.

    5 out of 5 stars
    Reviewed on 11/1/2025

    Dr. Sieminski takes his time to listen and makes you feel comfortable.

    5 out of 5 stars
    Reviewed on 11/1/2025

    Great doctor.

    5 out of 5 stars
    Reviewed on 11/1/2025

    Best there is!

    5 out of 5 stars
    Reviewed on 11/1/2025

    Very through Doctor. Has my best interest. Feel very confident in this Doctor.

    5 out of 5 stars
    Reviewed on 11/1/2025

    Always friendly and personable.

    1 out of 5 stars
    Reviewed 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 stars
    Reviewed on 11/1/2025

    incredibly professional and kind! i will be recommending dr sieminski to everyone!

    5 out of 5 stars
    Reviewed on 10/1/2025

    Kind courteous and quick

    5 out of 5 stars
    Reviewed on 10/1/2025

    Always professional and personal

    5 out of 5 stars
    Reviewed on 10/1/2025

    Dr. Sieminski is A GREAT DOCTOR !!!!

    5 out of 5 stars
    Reviewed on 10/1/2025

    Always responsive to my health needs.

    5 out of 5 stars
    Reviewed on 10/1/2025

    Dr Siemenski is caring and listens to any concerns.

    5 out of 5 stars
    Reviewed on 10/1/2025

    Dr Sieminski is always very pleasant and answers all your questions.

    5 out of 5 stars
    Reviewed on 10/1/2025

    Great dr and staff

    5 out of 5 stars
    Reviewed on 10/1/2025

    Awesome service.

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 10/1/2025

    Dr D. And his staff are excellent. Professional, courteous and knowledgeable. Highly recommend

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 10/1/2025

    He really cares about people which is hard to find today’s day and age

    5 out of 5 stars
    Reviewed on 9/1/2025

    Very thorough. Devotes time for questions. Caring and friendly

    5 out of 5 stars
    Reviewed on 9/1/2025

    Always very helpful and listens to what you sat to him.

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 9/1/2025

    Thorough. Genuinely interested in your well being. Happy with him.

    5 out of 5 stars
    Reviewed on 9/1/2025

    He knows his stuff.

    4 out of 5 stars
    Reviewed on 9/1/2025

    Fine visit

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 9/1/2025

    Absolute professional

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 9/1/2025

    Best doctor ever very kind patient and understanding

    5 out of 5 stars
    Reviewed on 9/1/2025

    Top Doc! Grateful

    5 out of 5 stars
    Reviewed 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 stars
    Reviewed on 8/1/2025

    He is simply the best at what he does!

    5 out of 5 stars
    Reviewed on 8/1/2025

    Dr Sieminski is an exceptional and caring dr

    5 out of 5 stars
    Reviewed on 8/1/2025

    Dr. Sieminski is pleasant & listens to your medical needs & concerns!

    5 out of 5 stars
    Reviewed on 8/1/2025

    Excellent Doctor!! Timing is right on point.

    5 out of 5 stars
    Reviewed on 8/1/2025

    Always though and concern for my health.

    5 out of 5 stars
    Reviewed on 8/1/2025

    Very helpful

    5 out of 5 stars
    Reviewed on 8/1/2025

    Great doctor who cares about his patients

    5 out of 5 stars
    Reviewed on 8/1/2025

    He’s thorough, caring and doesn’t make you wait

    4 out of 5 stars
    Reviewed 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 stars
    Reviewed on 8/1/2025

    He’s a wonderful, attentive doctor. We couldn’t be happier

    5 out of 5 stars
    Reviewed on 8/1/2025

    Was able to do tele visit immediately after contacting office.

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