Meet The Team

Chiropractor San Pedro CA Eric Grenda

Eric Grenda D.C.

Eric Grenda, D. C. is our Clinic Director. He was raised in Bellingham, Washington, where he completed four years of study at Western Washington University. After earning his Doctorate in Chiropractic in 1992, he continued to study the Gonstead System of Chiropractic at the Gonstead Clinic in Mount Horeb, Wisconsin and has practiced chiropractic in both Florida and California.


Dr. Grenda has received board certifications from the National Board of Chiropractic Examiners, the California State Board of Chiropractic Examiners, and the Florida State Department of Business and Professional Regulation: Board of Chiropractic.

In addition, he has received Advanced Training in the Gonstead System since 1990 (Gonstead Clinic of Chiropractic, Mount Horeb, WI), Advanced Training in the Melbourne Whiplash Protocol (Hanoun Medical, Inc. Denver, CO), and is Associate Member of The American Academy of Clinical Applied Spinal Biomechanical Engineering.

Dr. Grenda completed his Chiropractic Internship in Delray Beach, Florida and then continued to gain experience treating patients under the guidance of experienced Gonstead chiropractors. After three years of clinical practice treating all types and ages of patients, Dr. Grenda moved back to California to start his own practice. Since that time he has been the clinic director and has specialized in helping patients through the Gonstead Method of Chiropractic and physical rehabilitation.

Since 1996, Dr. Grenda and his wife have made their permanent home here in the South Bay. Dr. Grenda and his wife have three children and are very active in their community. Dr. Grenda is dedicated to helping people of all ages by applying his years of knowledge and experience in chiropractic and rehabilitation, so that his patients may attain their optimal state of health and well-being.

Chiropractor San Pedro CA Nicholas Randolph

Nicholas Randolph D.C.

Nicholas Randolph, D.C is a licensed chiropractor, utilizing the Gonstead method. He was raised in Farmington Hills, Michigan where he completed four years of study at Western Michigan University, earning his Bachelor of science degree. He then continued on to complete his Doctorate of Chiropractic, graduating with cum laude & clinical honors.


After completing a preceptorship program in Silicon Valley, he is a Gonstead chiropractor dedicated to helping patients reach their optimal wellness potential.

Chiropractic San Pedro CA Athena Green Massage Therapist


Athena Green is another of our amazing Certified Massage Therapists. In her own words, Athena says "I got lucky in the sense that I found my passion in life early. I have been a massage therapist since April 2001 specializing in several modalities including but not limited to NMR, MFR, positional release along with rehabilitation, women's health and pregnancy I have always been interested in how the body works and knew I would always go into healthcare.


I am a wellness coach using both eastern and western education to help my clients.

I also do energy work to help balance and release blocked energy.

I have worked at New Health Medical since December 2011, I have grown to love our clients, and see the great stories of recovery from our treatments.

Chiropractic San Pedro CA Mirna Castro Massage Therapist


I have been a massage therapist for 15 years. I like to integrate various modalities in my sessions to better help provide an overall feeling of wellness. I believe the body and mind have a positive response to massage.

Chiropractic San Pedro CA Raelynn Gallegos Massage Therapist

Raelynn Gallegos, LMT

My name is Raelynn Gallegos and I am a licensed massage therapist of 11 years specializing in deep tissue and trigger finger therapy.

Chiropractic San Pedro CA Sue Grenda Billing Assistant
Billing Assistant

Susan Miller

I am a graduate from Western Washington University in Community Recreation Programming which I did for the Boys and Girls Clubs of King County for over 20 years. I live in Seattle, and remotely assist New Health Medical in verifying patient insurance coverage.

Chiropractic San Pedro CA Ginene Alexander
Office Manager

Ginene Alexander

I have been in the Administrative/Medical field for over 15 years and have been a part of Dr. Grenda's practice since 2016. I have in-depth knowledge of the practice including chiropractic assisting, medical billing, patient services/care, and New Patient Coordinating. I also act as the Practice's Office Manager. I strive to provide Our staff and doctors a well-coordinated team to achieve the highest quality care for our patients.


I am a native of Torrance, CA where I raised my two children. I currently live in Lake Elsinore, Ca with my partner, son, and 4 fur babies. The things I love the most is my work, spending time with my family/friends, sports and taking a nice vacation.

Our entire staff is dedicated to making sure that your experience with us is one of ease, healing, and enjoyment.


8:00am - 12:00pm
1:00pm - 6:00pm

8:00am - 6:00pm

8:00am - 6:00pm

8:00am - 6:00pm

8:00am - 6:00pm

8:00am - 12:00pm

Grenda Chiropractic
739 West 9th Street
San Pedro, CA 90731
(424) 267-6151