Dr. Steven McMahon

Dr. McMahon has over 25 years of experience in chiropractic care. He is board-certified in all chiropractic techniques and has advanced training in physical therapy and nutrition. He uses holistic, all-natural, “gentle” chiropractic treatments to make patients feel better in the shortest amount of time, without drugs or surgery.

Dr. McMahon entered the chiropractic field a few years after he sustained a severe back injury, and experienced first-hand the tremendous recuperative benefits of chiropractic care.

He founded his practice in 1993, after earning his doctor’s degree from Life University’s School of Chiropractic, one of the leading Southern holistic health universities in Georgia. He worked as an associate at a Manhattan chiropractic office for two years before forming his own practice in New Jersey in 1995. 

Dr. McMahon moved his practice back to Manhattan in 1998. In 2014, he renovated the office to create a state-of-the-art healthcare facility that provides both effective treatment and a relaxing environment for patients.

During his extensive career, Dr. McMahon has helped people with a variety of ailments and health conditions including headaches, neck, back and leg pain, and scoliosis. He treats patients of all ages—from adolescents to seniors—as well as pregnant women

Dr. McMahon is actively involved in the Chelsea community, where he volunteers at the Holy Apostles Soup Kitchen, and has donated to the St. Peter’s holiday food drive for over 10 years. He is also a member of the Chelsea/Greenwich Village Chamber of Commerce.


  • American Chiropractic Association

  • International Chiropractic Pediatric Association

  • New York Chiropractic Council


Jacqueline Nelson – Office Manager

Jacqueline has been the Office Manager at McMahon Chiropractic since 2004. She is certified in professional medical coding and is responsible for billing, documentation, recordkeeping, coding, and compliance for the practice. She also handles doctor-patient and staff communication.

She makes it her goal to remain current with all Medicare and commercial insurance updates, and has remarkable success at resolving discrepancies with insurance companies.

Jacqueline moved from her hometown of Kingston, Jamaica to the United States in 1994, where she attended Long Island University. She is now an avid New Yorker and resides in Brooklyn, where she has two grown children and one grandchild.

One of her greatest pleasures, outside of spending time with her grandson, is helping patients to understand how insurance works and how it can provide the care that patients need to maintain a healthy life style. 


Parminder Kaur - Chiropractic Assistant

Parminder Kaur is the Chiropractic Assistant at McMahon Chiropractic. She works hard in order to maintain a high-level of customer service at the front desk, where she schedules patient appointments and assists them with insurance matters or with any questions regarding their visit to the office. Her pleasure is working with people and helping them with their needs.

Parminder came to the United States in 2000. She speaks English, Hindi, Punjabi, and Spanish. She graduated with her Bachelors in Psychology in 2017 and hopes to pursue a career as a Forensic Psychologist.