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Bradley Steven De Marquette, MD

Photo of Bradley Steven De Marquette, MD
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My specialty:
Emergency Medicine

My provider affiliation:
Kaiser Permanente provider

I speak: English

My gender: Male


Find out about

Where I practice

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Available services
  • Emergency service
  • Urgent care services
  • After-hours services
  • Pharmacy services
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  • No emergency services
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  • No pharmacy services
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About me

Welcome to my Web page. I am happy to have this chance to introduce myself to you and tell you about my work as a physician at Kaiser Permanente. I am an emergency medicine physician and have practiced for more than 29 years in Orange County. In 1997 and after 11 years of service, I left a successful and challenging Emergency Department staff physician position at Hoag Hospital in Newport Beach in order to be part of the outstanding team approach to medicine practiced here at Kaiser Permanente.


Having been born and raised in Southern California, I continue to live the California dream with my family here in Orange County. I've been happily married for 35 years and have three children: two out of college, one finishing her nursing degree. One is married (no grandkids yet!) and I enjoy as many activities as possible with them, which includes beach volleyball, golf, snowboarding, and camping. I'm also very active in my church, with several mission trips to the Philippines and Africa being the highlights of my efforts. I've wanted to be a physician since my childhood experience with a medical emergency while camping, having to wait for five hours for my mother to be treated at an incredibly understaffed Indian reservation clinic. Emergency medicine has always intrigued me, even before medical school at USC, but especially ever since I volunteered at the UCLA Medical Center emergency room when I was an undergraduate.

About my practice

Our team here in Orange County includes physicians, nurses, and other professionals who provide compassionate care in a friendly environment. We want to work together with you to address your specific health needs and concerns while you are here in our busy emergency department. Since both Orange County Medical Centers (Anaheim and Irvine) are paramedic receiving centers, we receive all types of emergencies, and the days can be pretty hectic. Over time, I work all the various shifts in our 24/7 schedule, so every week is different but always challenging!

How I thrive

Emergency medicine can be stressful, and my down time from Kaiser Permanente is important to me. My faith and my family are my top priorities. Through small-group Bible studies, I keep grounded spiritually. Through sports mainly beach volleyball, I try to keep in shape. I've coached volleyball at the junior high, club, and high school levels for 11 years for all of my children, and have always enjoyed watching them as well. Of course, there's always golf, but as it sometimes takes me five hours for a round and since I can't afford that kind of time too many times a month, I never seem to improve!

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My office

Languages spoken by medical staff

Help is available in your language. Learn more.

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My provider type

Physicians and Surgeons

Medical groups and plans

Southern California Permanente Medical Group

List Header Plans Accepted
  • Exclusive Provider Organization (EPO)
  • HMO
  • Medi-Cal Managed Care
  • Point-of-Service Plan (POS)
  • Senior Advantage/Medicare Cost
Acute Care-med/surg Department
3440 E La Palma Ave, Anaheim, CA 92806

Contact information

  • Advice/appointments/cancellations/messages
  • 1-833-574-2273 (toll free)
  • California Relay Service
  • 711 (TTY for the hearing/speech impaired)

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My training, certifications and licensing

Medical school

University of Southern California School of Medicine
Los Angeles , CA

Board certification

This information is not available at this time.

Medical training


Emergency Medicine

Los Angeles County/University of Southern California
Los Angeles , CA


Emergency Medicine

Los Angeles County/University of Southern California
Los Angeles , CA

Joined Permanente Medical Group


Active license information

License number


License type


License issuing state


National Provider Identifier (NPI)

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My hospitals

All Kaiser Permanente physicians and podiatrists have admitting privileges or the ability to refer patients to our plan hospitals. Admitting privileges of other providers may vary by plan and facility. Contact your plan administrator for details.

3440 E. La Palma Avenue, Anaheim, CA 92806
6640 Alton Pkwy, Irvine, CA 92618

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To find:

  • a provider's office hours, search our facility directory
  • providers in your plan or accepting new patients, call 1-800-464-4000 (toll free) or 711 (TTY for the hearing/speech impaired)

The information in this online directory is updated periodically. The availability of physicians, hospitals, providers, and services may change. Information about a practitioner is provided to us by the practitioner or is obtained as part of the credentialing process. If you have questions, please call us at 1-800-464-4000 (toll free). For the hearing and speech impaired: 1-800-464-4000 (toll free) or TTY 711 (toll free). You can also call the Medical Board of California at 916-263-2382, or visit their website.

We want to speak to you in the language that you’re most comfortable with when you call or visit us. Qualified interpreter services, including sign language, are available at no cost, 24 hours a day, 7 days a week during all hours of operations at all points of contact. We do not encourage the use of family, friends or minors as interpreters. Only the services of interpreters and qualified staff are used to provide language assistance. These may include bilingual providers, staff, and healthcare interpreters. In-person, telephone, video, and alternative modes of communication are available. Learn more about interpreter services

If you would like to report an error in provider or facility information, please contact us.

Kaiser Permanente enrollees have full and equal access to covered services, including enrollees with disabilities as required under the Federal Americans with Disabilities Act of 1990 and Section 504 of the Rehabilitation Act of 1973.

Kaiser Permanente uses the same quality, member experience, or cost-related measures to select practitioners and facilities in Marketplace Silver-tier plans as it does for all other Kaiser Foundation Health Plan (KFHP) products and lines of business.The measures may include, but are not limited to, HEDIS/CAHPS performance, member/patient complaints, patient safety scores, hospital quality measures, and geographic need. Members enrolled in KFHP Marketplace plans have access to all professional, institutional and ancillary health care providers who participate in KFHP plans’ contracted provider network, in accordance with the terms of members’ KFHP plan of coverage. All Kaiser Permanente Medical Group physicians and network physicians are subject to the same quality review processes and certifications.
Kaiser Permanente uses the same geographic distribution consideration to select hospitals in Marketplace plans as it does for all other Kaiser Foundation Health Plan (KFHP) products and lines of business. Accessibility of medical offices and medical centers in this directory: All Kaiser Permanente facilities are accessible to members.


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