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Zachary P. Thielen, MD

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My specialty:
Orthopaedic Surgery

My provider affiliation:
Kaiser Permanente provider

I speak: English

My gender: Male

Referral required.

Where I practice

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  • Pharmacy services
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About me

My grandparents moved from Los Angeles to Lanikai in the 1960s and raised their family on Windward Oahu. I was born in Oregon, grew up on Kauai, and graduated from Waimea High School. While attending the University of Hawaii at Manoa, I was blessed to meet my future wife, a Lahainaluna alumna. After I graduated from the University of Hawaii, John A. Burns School of Medicine, we moved to the mainland for my surgical training, always with the intention of returning to Hawaii to live. I did an internship and residency in orthopaedic surgery at University of California, San Francisco (UCSF), where I was chief resident, and later did a fellowship in adult reconstruction/hip and knee replacement at Hoag Orthopedic Institute in Orange County.

Throughout my life my grandmother has been an inspiration. In addition to raising four children, she completed her law degree and dedicated herself to helping the people of Windward Oahu. The example she set led to my choice of a profession that would allow me to make a similar contribution to my community.

About my practice

My undergraduate degree was in civil engineering. I enjoyed this field, but when I was working my way through college at a restaurant in Waikiki, I realized that I wanted to combine my love for the sciences with direct service to others. Medicine was the answer, and, given my engineering background, I was naturally drawn to orthopaedics. The mechanics of muscles and bones are fascinating to me. Being in a position to help patients return to active lives is the most gratifying part of my job. My special interests are minimally invasive total hip replacement, total knee replacement, and partial knee replacement.

At UCSF I gave a presentation on orthopaedic surgical care in the country of Malawi. I also spoke on opioid use after surgery at a conference of the American Association of Hip and Knee Surgeons. My research on complications of hip and knee realignment, cartilage repair, bone malformation in children after fractures, and the Keiki Ola Pono Sports Program has been published in several medical journals.

To stay current in my field, I attend local and national meetings where the latest research is presented. I also read journals as well as the literature put out by my professional organizations, the American Association of Hip and Knee Surgeons and the American Association of Orthopaedic Surgeons.

I was excited to join Hawaii Permanente Medical Group because its care delivery model allows me to focus on my patients without distractions.

Getting to know my patients as individuals allows me to tailor a care plan that more closely meets their needs. Whenever possible, I recommend starting off with the least invasive treatments.

How I thrive

Most of all I enjoy spending time with my wife and two daughters. To stay fit, I run, swim, surf, and do other activities in or on the water.

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My office

Referral requirements

You need a referral to see this provider.

Languages spoken by medical staff

Help is available in your language. Learn more.

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Medical groups & plans

Hawaii Permanente Medical Group

80 Mahalani Street, Wailuku, HI 96793
List Header Plans Accepted

This provider accepts all Kaiser Permanente health plans. Learn more.

Contact information

  • 24-hour prescription refill
  • 808-643-7979
  • 24/7 advice
  • 808-243-6000
  • Appointment cancellations
  • 808-243-6000
  • Behavioral Health Services
  • 808-243-6420
  • Information and appointments
  • 808-243-6000
  • Member Services
  • 1-800-966-5955 (toll free)
  • Pharmacy
  • 808-643-7979

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My training, certifications & licensing

Medical school

University of Hawaii
Honolulu , HI

Board certification

This information is not available at this time.

Medical training


Orthopedic Surgery

University of California San Francisco
San Francisco , CA


Orthopedic Residency

University of California San Francisco
San Francisco , CA


Total Joint Replacement

Hoag Orthopedic Institute
Irvine , CA

Joined Permanente Medical Group


Provider ID

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My hospitals

I have admitting privileges at the following hospitals:

3288 Moanalua Road, Honolulu, HI 96819

I have admitting privileges at the following hospitals:

Setting the standard: Measuring care quality in our hospitals(PDF)

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To find:

  • a provider’s office hours, search our facility directory
  • providers in your plan or accepting new patients, call 1-800-966-5955 (toll free) or 711 (TTY for the hearing/speech impaired)

The information in this online directory is updated at least monthly. The availability of physicians, hospitals, providers, and services may change. To report an error, please call 1-800-966-5955 or email us.

Kaiser Permanente works together with participating providers to ensure all cultural competence obligations are met. We are dedicated to ensuring that services are provided in a culturally competent manner to all members, including those with limited English proficiency and reading skills; as well as those with diverse cultural and ethnic backgrounds.

Accommodations for Individuals with Disabilities

Kaiser Permanente is committed to providing accessible facilities, services, and programs for all members, visitors and individuals with disabilities. In compliance with federal and state laws that prohibit discrimination based on disability, Kaiser Permanente provides:

  1. accessible exam rooms and medical equipment;
  2. free auxiliary aids and services to ensure effective communication with individuals with hearing, vision, cognitive, and/or communication-related disabilities, including qualified sign language interpreter services and informational materials in alternative formats (large print, audio tape/CDs, accessible PDFs or Microsoft Word documents, electronic texts/disks/CD-ROMS, and Braille); and
  3. access to service animals, except where the animal poses a significant health or safety risk(s) to others.

For more information about access to a specific facility or provider, or if you believe that Kaiser Permanente has failed to provide appropriate access or services or otherwise discriminated on the basis of a disability, please contact Member Services toll-free 1-800-966-5955 or TTY 711, Monday through Friday, 8 a.m. – 5 p.m. or Saturday, 8 a.m. – noon. You may also contact or file a grievance with the Kaiser Permanente Civil Rights Coordinator in person, by mail, fax or email at: 711 Kapiolani Blvd, Honolulu, Hawaii 96813,, or toll-free 1-800-966-5955, TTY 711.

The availability and use of the Kaiser Permanente grievance procedure does not prevent a person from filing a complaint of discrimination on the basis of disability with the U.S. Department of Health and Human Services, Office for Civil Rights or the Hawaii Civil Rights Commission.

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 and 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. 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 the members' KFHP plan of coverage. All Kaiser Permanente Medical Group physicians and network physicians are subject to the same quality review processes and certifications.

A narrow network is defined as a tailored, tiered or high-performance network that has 80 percent or less overlap with a health plan’s broadest network offered to a member in any type of plan offered by that health plan. Kaiser Permanente does not have a narrow network with respect to its Marketplace plans. Members enrolled in Kaiser Foundation Health Plan (KFHP) Marketplace plans have access to the same provider networks as members enrolled in all other KFHP plans.

Information about a practitioner is provided to us by the practitioner or is obtained as part of the credentialing process. If you would like more current information on a practitioner's license, call either the Hawaii Department of Commerce and Consumer Affairs Consumer Resource Center at (808) 587-3295 or visit their website, or call the Kaiser Permanente Customer Service Center at (808) 432-5955 (Oahu) or 1-800-966-5955 (toll free, neighbor islands). For the deaf, hard of hearing, or speech impaired, call 1-800-966-5955 or 711 (TTY).


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