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Your Trusted Chiropractor in Petaluma, CA
Hammer Chiropractic Office has been a trusted provider of chiropractic care in Petaluma for nearly 45 years. Founded in the 1970s and now led by Dr. Jennifer Hammer-Codd, our practice combines decades of experience with a personalized approach to wellness. We specialize in gentle adjustments, cold laser therapy, and holistic health solutions tailored to individual needs. Our team prioritizes patient education, natural healing, and long-term pain relief, serving the community with integrity and expertise.

With a focus on the nervous system and spinal health, we help patients achieve improved mobility, reduced pain, and enhanced overall well-being. Our commitment to excellence has earned us a strong reputation for compassionate, effective care.
Services
Chiropractic Care Cold Laser Therapy Ultrasound Therapy Auto Accident Chiropractic Weight Loss DMV Physicals
Highlights and features
  • 45 years of combined experience in chiropractic care.
  • Gentle adjustments for long-lasting pain relief.
  • Personalized treatment plans tailored to individual needs.
  • Holistic approach focusing on whole-body wellness.
  • Family-owned practice with deep community roots.
What people say
Effective pain relief Personalized care Gentle adjustments Supportive team Chronic condition improvement
Services
Chiropractic Care
Our chiropractic care focuses on spinal health and nervous system function to alleviate pain and improve mobility. Using gentle, precise adjustments, we address misalignments that cause discomfort, enabling the body to heal naturally. Patients experience relief from back pain, neck pain, headaches, and other conditions through personalized treatment plans tailored to their specific needs.
Cold Laser Therapy
Cold laser therapy uses low-level light to stimulate healing and reduce inflammation in targeted areas. This non-invasive treatment accelerates tissue repair, alleviates pain, and improves circulation without side effects. It is effective for conditions like arthritis, sports injuries, and chronic pain, offering a drug-free alternative for long-term relief and recovery.
Auto Accident Chiropractic
Auto accident chiropractic care addresses injuries from collisions, including whiplash and spinal trauma. We employ specialized techniques to restore mobility, reduce pain, and prevent long-term complications. Our approach combines adjustments, soft tissue therapy, and rehabilitation exercises to support full recovery and ensure patients regain their quality of life post-accident.
Weight Loss
Our weight loss programs integrate chiropractic care with nutritional counseling to promote sustainable, healthy weight management. By addressing spinal alignment and metabolic function, we enhance the body's ability to shed excess weight. Customized plans include dietary guidance, supplements, and lifestyle modifications to support long-term wellness and prevent chronic disease.
DOT Physicals
DOT physicals ensure commercial drivers meet federal health standards for safety-sensitive roles. Our certified examiners conduct comprehensive assessments, including vision, hearing, blood pressure, and urine tests, to determine fitness for operating commercial vehicles. We provide documentation required for CDL certification and renewal, ensuring compliance with FMCSA regulations.
People
Dr. Jennifer Hammer-Codd
Chiropractor
Dr. Jennifer Hammer-Codd specializes in holistic chiropractic care, focusing on gentle adjustments and patient education. With a family legacy in the field, she emphasizes natural healing and long-term wellness. Her approach combines functional health strategies with personalized treatment plans to address individual needs.
Dr. Ronald Hammer
Chiropractor
Dr. Ronald Hammer has dedicated over 45 years to chiropractic care, specializing in spinal health and pain management. His patient-centered approach prioritizes restoring mobility and preventing chronic issues. Known for his expertise in gentle adjustments, he continues to mentor and treat patients alongside his daughter, Dr. Jennifer Hammer-Codd.
Questions
What conditions do you treat?
We treat back pain, neck pain, headaches, sports injuries, auto accident injuries, and chronic conditions through chiropractic adjustments and complementary therapies.
Do you accept insurance?
We accept most major insurance plans. Contact our office for verification and details about coverage for chiropractic services.
What is your cancellation policy?
We require 24-hour notice for appointment cancellations to accommodate other patients and maintain scheduling efficiency.
Are your treatments painful?
Our adjustments are gentle and non-invasive, designed to minimize discomfort while maximizing effectiveness for long-term relief.
How many sessions will I need?
Treatment plans vary by condition. Most patients experience improvement within a few visits, with ongoing care tailored to individual progress and goals.
Do you offer wellness programs?
Yes, we provide weight loss guidance, nutritional counseling, and lifestyle recommendations to support overall health alongside chiropractic care.