Comprehensive Pain Management Specialists                             858-453-7700
Dedicated to the advancement and treatment of pain disorders.

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Christopher John Gordon Chisholm, M.D.

A member of the Division of Anesthesiology, Dr. Chisholm received his medical degree from the University of Medicine and Dentistry of New Jersey. He completed an internship in Internal Medicine at the University of Medicine and Dentistry, and served a residency in Anesthesiology at Columbia University Medical Center in New York City. While at Columbia University, he was given the honor to serve as Chief resident. Choosing then to sub-specialize in pain medicine, he completed an Interventional Pain Medicine Fellowship at the University of California Davis, graduating in December of 2005. Dr. Chisholm holds staff privileges at UCSD Medical Center as a volunteer clinical instructor. Dr. Chisholm held staff privileges at UCSD Medical Center as a volunteer clinical instructor. During that time he donated his time at the San Diego Veterans Hospital where he provided pain management services to veterans.


  • Pain Management
  • Anesthesiology


  • UMDNJ-New Jersey Medical School, M.D., 2000


  • UMDNJ-New Jersey Medical School, , 2001


  • Columbia University, 2001-2004


  • University of California (Davis) Medical Center, 2005

Board Certifications

  • American Board of Anesthesiology, 2005
  • American Board of Anesthesiology Pain Management, 2006

Hospital Privileges

  • Scripps Green Hospital
  • Scripps Memorial Hospital, La Jolla
  • University of California, San Diego, Thornton
  • Veteran’s Administration Hospital, San Diego
  • Orthopaedic Surgery Center of La Jolla
  • Pomerado Hospital
  • Rancho Bernardo Surgery Center

Timothy Chong, M.D.

Upon receiving his medical degree from the University of Hawaii John A. Burns School of Medicine; he finished a General Surgery Internship with Hawaii Residency Program. Dr. Chong is a Board Certified Physical Medicine and Rehabilitation (PMR) specialist completing a residency at Stanford University. His decision to further subspecialize in Pain Medicine led to attending an ACGME accredited Pain Medicine Fellowship with University of Michigan Department of Anesthesiology.

He has published and presented various research topics on Pain Medicine and
PMR at a national level.

Dr. Chong can offer consultation and recommendations managing back, neck, joint, limb,
muscle and nerve pain; utilizing expertise in both Pain Medicine and Physical Medicine and Rehabilitation.


  • Pain Management
  • Physical Medicine and Rehabilitation

Medical Education

  • University of Hawaii John A. Burns School of Medicine


  • University of Hawaii Surgical Residency Program


  • Stanford University Residency Program


  • University of Michigan Pain Medicine Fellowship
Research and Presentations
Chong T, Haider, N. Novel Approach to Water Cooled Radiofrequency Ablation for Chronic Sacroiliac Joint Pain. Pain Physician. July 2011
American Society of Interventional Pain Physicians Presentation June 25, 2011

Chong T, Lieu J, Smuck M, Mitra R. Pulmonary Cement Embolism a Rare Complication of Kyphoplasty. Pain Practice. Publication Accepted Dec 20, 2010

Chong T, Geisser M, Kao M, Smuck M. Impact of BMI on Interventional Spine Procedure Duration and Radiation Exposure. Pain Medicine. Oct 2010
International Spine Intervention Society Presentation July 17, 2010

Chong T, Hong H and Mitra R. Acute Rehabilitation of Thoracic Transverse Myelitis. Association of Academic Physiatrists Presentation Feb 12, 2009

Scott T, Chong T, Boparai N, Petros J, Lawton M, Rosenblum A.
Exercise and Post-Spinal Cord Injury Shoulder Pain.
American Academy of Physical Medicine and Rehabilitation Presentation Nov 21, 2008

Professional Memberships

American Medical Association
American Society of Interventional Pain Physicians
American Society of Regional Anesthesia and Pain Medicine
American Academy of Physical Medicine and Rehabilitation
International Association for the Study of Pain
International Spine Intervention Society

Maria Aceves, PA-C

Mrs. Aceves is a graduate of the University of Washington School of Medicine, Medex Northwest Physician Assistant Training Program. She completed a physician assistant preceptorship with Medex Northwestern. Since her training Mrs. Aceves has worked with the Yakima Valley Farm Workers Clinic and in the areas of pediatrics, internal medicine, emergency medicine and occupational medicine in the southern California area.  


  • University of Washington School of Medicine Medex Northwest Physician Assistant Training Program
  • A.T Still University of Health Sciences


  • Physician Assistant Merit Drug and Alcohol Treatment Center, Yakima WA
  • Medex Northwestern Physician Assistant Preceptor Yakima, WA

Board Certifications

  • Physician Assistant, 2000


  • Washington State Academy of Physicians Assistants Scholarships
  • Kadlac Hospital Medical Professions Scholarships
  • Washington State Health Professions Scholarship
  • Glen M. Doornik MD Award for Dedication to Underserved Populations


  • NCCPA Board Certified in Primary Care and Surgery


  • American Academy of Physician Assistants
  • California Academy of Physician Assistants
  • American College of Occupational Medicine


  • Fluent in Spanish

Gordon Iwasaki, PA

Mr. Iwasaki is a graduate of the Charles Drew University of Medicine, Los Angeles, California, Physician Assistant Program. Since his training Mr. Iwasaki has worked with in Pain Management, Orthopedics, Physical Medicine and Rehabilitation in the Southern California area.   


  • University of Nebraska Master’s PA Program – Omaha, NE
  • Charles Drew University of Medicine- Los Angeles, CA. Physician Assistant Program
  • University of California, San Diego- La Jolla, CA

Board Certifications

  • Physician Assistant, 1995




  • California Academy of Physician Assistants
  • American Academy of Physician Assistants