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Mark Frederick Clapper, MD

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My specialty:

My provider affiliation:
Kaiser Permanente physician

I speak: English

My gender: Male

Where I practice

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  • Pharmacy services
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About me

Welcome to my Web page! I have been at Kaiser Permanente since 1997 and practicing orthopedics since completing my residency in 1989. I spent 28 years in the United States Navy before and after medical school. In 2009, I was selected to be the chief of orthopedics. I enjoy the challenge and reward of caring for people with musculoskeletal problems both in surgery and in the clinic. It gives me a way to serve the others in the community now that my military service is finished.


I grew up in Pennsylvania farm country, just outside of Reading. After graduating from the United States Naval Academy, I volunteered for nuclear submarines duty, serving on two different nuclear attack submarines. After completing my second submarine assignment, I applied and was accepted to the military medical school in Bethesda, Maryland. During medical school I married a fellow student; we have four sons. Three of our sons are now serving in the United States Navy around the world. I continued my training at Bethesda in orthopedics and was then assigned to the Naval Medical Center San Diego. I also served in Saudi Arabia and Kuwait. When I retired, I joined the orthopedic department at Kaiser Permanente.

About my practice

I have a practice in general orthopedics with Kaiser Permanente, focusing on elective shoulder and knee surgery. I am also a member of the orthopedic trauma team, providing emergency surgical musculoskeletal care. A key philosophy of my practice is the importance of sustained fitness for everyone in every stage of their life.

How I thrive

I try to keep myself physically and mentally active. I do this by mountain biking and stand-up paddle boarding on weekends, road biking during the week, rowing on an indoor rower, and skiing. I keep my mind engaged by reading every day, both medical literature and for pleasure. I enjoy books by Larry McMurtry, Jon Krakauer, Ivan Doig, Wallace Stegner, and other Western writers.

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My office

Languages spoken by medical staff

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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
Orthopedics Department
4650 Palm Ave, San Diego, CA 92154

Contact information

  • Advice/appointments/cancellations/messages
  • 1-833-574-2273 (1-833-KP4CARE) (toll free)
  • California Relay Service
  • 711 (TTY for the hearing/speech impaired)
  • Information
  • 1-833-574-2273 (1-833-KP4CARE) (toll free)
  • Pharmacy information/refills by phone
  • 1-866-385-2645 (toll free)

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My training, certifications and licensing

Medical school

Uniformed Services University of Health Sciences F Edward Herbert School of Medicine
Bethesda , MD

Board certification

Orthopaedic Surgery

American Board of Orthopaedic Surgery

Medical training


Internal Medicine

National Naval Medical Center
Bethesda , MD


Orthopaedic Surgery

National Naval Medical Center
Bethesda , MD


Spine Surgery

Maryland Spine Fellowship
Towson , MD

Joined Permanente Medical Group


Active license information

License number


License type


License issuing state


National Provider Identifier (NPI)

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My hospitals

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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

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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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