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William S. Takashima, DO

Photo of William S. Takashima, DO

My specialty:
Family Medicine

My provider affiliation:
Kaiser Permanente provider

I speak: English

My gender: Male


Standards of quality

Where I practice

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  • Emergency service
  • Urgent care services
  • After-hours services
  • Pharmacy services
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About me

I was born in San Diego, California, and was raised on a farm near the Mexican border. At age 19 I came to Hawaii to surf and visited regularly after that. The U.S. Navy later transferred me to the former Navy Air Station at Barbers Point as a flight surgeon. My father was a farmer and a member of the 442nd Regimental Combat Team during WWII. Education was important in my family, and my father wanted his children to have a wider range of career choices than those available to him, especially during the war.

About my practice

In my childhood my family physicians were brothers from Kauai. They did everything from birthing to elder care, and this was all I knew of the medical field. These men formed my perception of the complete physician. I didn’t know that there were specialty fields until I was older. Another family practice physician who mentored me during my undergraduate years was a team physician for the San Diego Chargers. He broadened my perspective and guided me in my choices of medical schools and residencies. These influences and my desire to develop long-term rapport with my patients led to my choice of family medicine as a specialty. Currently I serve as a flight surgeon in the Hawaii Air National Guard reserves, where I have given aeromedical briefings. In addition to English, I speak some basic Spanish. Membership in the American Academy of Family Physicians and other national medical organizations helps to keep me up-to-date in my field. I also attend conferences, read professional journals, subscribe to the online Up To Date! and take online self-assessments. The Hawaii Permanente Medical Group’s emphasis on providing high quality, integrated, and affordable health care was the primary reason I wanted to become a part of this organization. My goal is to provide exceptional care to the entire family. This includes listening quietly to my patients, learning about their lives, and developing trust and understanding in my relationships with them.

How I thrive

I try to be physically active every day, usually in the water. Spending time with friends and family is important to me. I especially enjoy sharing and experiencing my children's wonder as they learn and grow.

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My office

Referral requirements

You don't 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

Family Medicine Department name
94-1480 Moaniani Street, Waipahu, HI 96797
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
  • 808-432-2000
  • Appointment cancellations
  • 808-432-2000
  • Behavioral Health Services
  • 808-432-7600
  • Information and appointments
  • 808-432-2000
  • Member Services
  • 1-800-966-5955 (toll free)
  • Pharmacy
  • 808-643-7979

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My training, certifications & licensing

Medical school

Kirksville College of Osteopathic Medicine
Kirksville , MO

Board certification

Family Practice

American Board of Family Medicine

To verify board certification for an individual practitioner, please visit the American Board of Medical SpecialtiesExternal Link, the American Medical AssociationExternal Link, or the American Osteopathic AssociationExternal Link websites.

Medical training


Naval Hospital (Camp Pendleton)
Camp Pendleton , CA


University of Hawaii Medical Residency Program
Honolulu , HI

Joined Permanente Medical Group


Provider ID

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My hospitals

This information is not available at this time.

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 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 websiteExternal Link, 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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