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1101 Twin-C Lane #201

Newark, DE 19713 US


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Meet the Chiropractors

  • Dr. Kristina Hollstein

    Dr. Kristina Hollstein is a Summa Cum Laude graduate from Palmer College of Chiropractic. She is also a chiropractic orthopedist (a specialty that only 3% of chiropractors in the U.S. obtain). She also was a faculty member at Palmer while practicing in Illinois. Dr. Hollstein received her undergraduate degree in chemistry with a minor in biology at Ursinus College in Collegeville, PA. She is an avid sports enthusiast and has done triathlons and competitive swimming. Dr. Hollstein is also very active in politics trying to achieve even better Chiropractic equality. Dr. Hollstein has been practicing for over 25 years. Dr. Hollstein has kept up to date on many continuing educational classes, ensuring that her patients receive the most comprehensive and advanced chiropractic care.

    Congratulations to Dr. Kris on being the first chiropractor to have ever won the Women of Distinction award! Dr. Kris was acknowledged for her hard work, dedication and commitment to succeed as a female chiropractor. The Women of Distinction is an award that can only be honored by nomination or invite. It is given to prestigious women who have dedicated their business and career in the field they love.

  • Dr. Gregory Serge

    Dr. Gregory Serge is a graduate from National College of Chiropractic. While attending there, he also earned a Bachelor of Science in Human Biology. Prior to his chiropractic education Dr. Greg received a Bachelor of Science in International Relations from the University of Delaware. He has also graduated from Salesianum.  After earning his Doctorate in Chiropractic he quickly returned to Delaware where he continued his education with advance training in Acupuncture and was certified in Acupuncture Orthopedics. Dr. Greg has been awarded “Intern of the Trimester” for the National College of Chiropractic Aurora Clinic in Aurora, IL and also had been selected for an additional Special Internship at the AAHP in Chicago, IL. Dr. Greg has been practicing for close to 20 years. Dr. Greg keeps up to date with countless continuing educational classes, guaranteeing that his patients receive the most comprehensive and advanced chiropractic care.  He is a competitive mountain bicyclist. Being a native of Delaware he is a dedicated Eagles fan.  His genuine passion for chiropractic care shines through his work. He loves to heal and repair, restore mobility and help his patients return to good health. His motto for healthcare is “Live Life to the Fullest.”

If you have any questions about our Newark chiropractor, or would like to learn more about chiropractic care at Diamond State Chiropractic, please call us at 302-828-0051 today!

Business Hours


9:00 am-12:00 pm

2:00 pm-7:00 pm


8:00 am-12:00 pm

2:00 pm-6:00 pm


8:00 am-12:00 pm

2:00 pm-6:00 pm


No Morning Appts. (Special Arrangements only)

2:00 pm-7:00 pm








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Reviews By Our Satisfied Patients

  • "I have benefited tremendously from the chiropractic care I received from Dr. Hollstein."
    John D Newark, DE
  • "Doctors & Staff are great, very professional. I have benefited by coming here, Dr. Hollstein steered me away from surgery & that’s great! Thanks!"
    Paul P.

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