Meet Our Chiropractic Team in Upper Darby
Everybody’s Chiropractic Center has served patients in Upper Darby and throughout Delaware County, the Main Line, and nearby Philadelphia communities for more than 30 years. Our team includes chiropractic and rehabilitation professionals who provide individualized conservative care focused on improving movement, function, and comfort.
Patients may receive care for concerns including back pain, neck pain, sciatica, headaches, joint pain, injuries, and mobility limitations. Depending on the individual, care may include chiropractic treatment, rehabilitation, spinal decompression, SoftWave Therapy, and other appropriate conservative options.

Dr. Daniel Klein
Owner, Chiropractor
Dr. Daniel Klein has more than 30 years of clinical experience providing chiropractic care to patients in Upper Darby and throughout Delaware County.
His approach focuses on understanding each patient’s symptoms, medical history, movement limitations, daily activities, and goals before recommending care. Depending on the individual, treatment may include chiropractic adjustments, manual techniques, rehabilitation, exercise recommendations, spinal decompression, or other conservative options.
Dr. Klein commonly evaluates patients with musculoskeletal concerns such as back pain, neck pain, sciatica, headaches, joint pain, injuries, and mobility limitations. His goal is to help each patient understand what may be contributing to their symptoms and discuss appropriate options for improving movement, function, and comfort.
When appropriate, Dr. Klein may also incorporate technologies available at Everybody’s Chiropractic Center, including SoftWave Therapy and Class IV laser therapy. These treatments are not appropriate for every condition or every patient, so recommendations are based on the individual evaluation.
Patients often appreciate Dr. Klein’s straightforward and approachable style. He takes time to listen, answer questions, explain examination findings, and discuss treatment options in clear language so patients can better understand their care.
Dr. Klein has maintained an active lifestyle for many years. He has completed 14 marathons and 16 full-distance Ironman triathlons, including the IRONMAN World Championship in Kona, Hawaii. His personal interest in movement, exercise, nutrition, and healthy aging influences his emphasis on helping patients remain active and continue participating in the activities that matter to them.
Move well. Eat well. Think well. Live well.

Dr. Gunnar Centrone
Chiropractor
Dr. Centrone is a dedicated chiropractor and graduate of Northeast College of Health Sciences. Originally from Media, Pennsylvania, Dr. Centrone completed a year-long chiropractic clerkship, gaining hands-on experience treating patients of all ages and backgrounds. Outside of work, Dr. Centrone enjoys skiing and staying active through fitness.

Michael Rykacewski
DPT (Doctor of Physical Therapy)
OCS (Orthopedic Certified Specialist)
Michael Rykacewski is a highly skilled Doctor of Physical Therapy and an Orthopedic Certified Specialist dedicated to helping patients recover and optimize their physical function. He earned his undergraduate degree from Penn State University (2011–2015) and completed his Doctor of Physical Therapy at Briarcliff University (2017–2020). Michael further advanced his expertise through a rigorous residency at Jefferson University (2020–2021).
Passionate about orthopedic rehabilitation, Michael combines evidence-based techniques with personalized care to help patients achieve their goals and return to the activities they love. Outside the clinic, he enjoys staying active through exercise and cherishes spending time with his wife and two children.

Mary
Office Manager
Mary has been working at Everybody’s Chiropractic since 1998. She has assisted with patient care, managed the office, scheduled and billed. She loves seeing patients feel and function better after care. When she is not in the office, she loves to spend time with her husband, family, and friends around the table with good food and good wine. Her happy place is the beach with the sun on her face and sand on her feet.

Gisselle
Lead Chiropractic Assistant
Gisselle (a.k.a. Gigi) joined Everybody’s Chiropractic Center in March of 2022 as a chiropractic assistant. In this role, she helps Dr. Klein with patients and assists them with various therapies offered in the office. She also provides translation services between Spanish and English. Gisselle loves her job because it allows her to help people from diverse backgrounds and connect with patients as they progress on their healing journeys. In her free time, Gisselle enjoys taking her dog, Milo, on long walks and hikes, as well as exploring new foods and traveling to different places around the world.

Alejandra
Chiropractic Assistant
Alejandra (Ale) started working at Everybody’s Chiropractic Center in August 2022 as a chiropractic assistant and translator. She greatly enjoys helping people and witnessing their health improve, as well as connecting with them throughout their journey. Her favorite activities include outdoor adventures like hiking, biking, kayaking, and camping. Alejandra also loves spending time at home watching movies with her fiancé and their two cats, Peanut and Evo.
EXCELLENT
Based on 343 reviews
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tim shookTrustindex verifies that the original source of the review is Google.
Having been in auto repair for over 46 years, regular chiropractic “tune-ups” are a necessity. I am beyond thankful to Dr. Dan and his team for the excellent care they provide.Posted on Google![]()
HeatherTrustindex verifies that the original source of the review is Google.
Best practice I've beenPosted on Google![]()
Gwendolyn Early-WrightTrustindex verifies that the original source of the review is Google.
Dr Dan and his staff are the best! They are caring and have patience. You feel like you are part of a family while you are there. I have recommended family and friends, all have been satisfied with their treatment.Posted on Google![]()
NikkiNicole45Trustindex verifies that the original source of the review is Google.
Love Dr. Klein and staff. Dr. Klein is very knowledgeable, honest and takes his time to explain what's going, he cares about his patients. The environment is very clean, productive and welcoming and the staff is Awesome. They get FIVE STARS everytime I go.Posted on Google![]()
Tonya M45Trustindex verifies that the original source of the review is Google.
Win Medical & Rehab, (Upper Darby) everyone there including reception is very professional. The Therapist & Dr.’s there are very well educated, informative and very good at what they do. Recommend 1000%Posted on Google![]()
Adam ZiedonisTrustindex verifies that the original source of the review is Google.
Just awesome!