William E Underdown, MD - Family Medicine in Port Orchard, WA

William E Underdown, MD is a Family Medicine physician based in Port Orchard, Washington. William E Underdown is licensed to practice in Washington (license number MD00023348) and his current practice location is 450 So. Kitsap Blvd., Suite 100, Port Orchard, Washington. He can be reached at his office (for appointments etc.) via phone at (360) 744-6275.

NPI number for William E Underdown is 1154323525 and his current mailing address is 2520 Cherry Ave, Harrison Medical Center, Bremerton, Washington. He does not participate in medicare program and thus does not accept medicare assignments. His NPI Number is 1154323525.

Contact Information

William E Underdown, MD
450 So. Kitsap Blvd., Suite 100,
Port Orchard, WA 98366
(360) 744-6275
(360) 744-6188

Map and Direction




Physician's Profile

Full NameWilliam E Underdown
GenderMale
SpecialityFamily Medicine
Location450 So. Kitsap Blvd., Port Orchard, Washington
Accepts Medicare AssignmentsDoes not participate in Medicare Program. He may not accept medicare assignment.
  NPI Data:
  • NPI Number: 1154323525
  • Provider Enumeration Date: 08/15/2005
  • Last Update Date: 04/02/2009

Medical Identifiers

Medical identifiers for William E Underdown such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1154323525NPI-NPPES
911703412OtherWATRICARE
314823001OtherWAGROUP HEALTH
8927800OtherWACRIME VICTIMS
08001412OtherRAILROAD MEDICARE
1095850MedicaidWA
UN0601OtherWAREGENCE
104922OtherWAL & I
91170341201OtherWAKPS

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine MD00023348 (Washington)Primary

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. William E Underdown is NOT enrolled with medicare and thus cannot prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
William E Underdown, MD
2520 Cherry Ave, Harrison Medical Center,
Bremerton, WA 98310

Ph: (360) 792-6610
William E Underdown, MD
450 So. Kitsap Blvd., Suite 100,
Port Orchard, WA 98366

Ph: (360) 744-6275

Reviews and Comments


Family Medicine Doctors in Port Orchard, WA

Ifesinachi S Oguakwa, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 450 So Kitsap Blvd, Suite 100, Port Orchard, WA 98366
Phone: 360-744-6275    Fax: 360-744-6270
Melissa Ayn Meyer, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1141 Beach Dr E, Port Orchard, WA 98366
Phone: 360-895-4680    Fax: 360-895-4709
Daniel Eldredge Diamond, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 450 S Kitsap Blvd, Suite 100, Port Orchard, WA 98366
Phone: 360-744-6275    Fax: 360-744-6270
Christine Agbayani Lomotan, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 1400 Pottery Ave, Port Orchard, WA 98366
Phone: 360-895-5000    
Robert R Rankin, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 450 So. Kitsap Blvd., Suite 100, Port Orchard, WA 98366
Phone: 360-744-6275    Fax: 360-744-6188
Emily Assavapisitkul,
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1400 Pottery Ave, Port Orchard, WA 98366
Phone: 360-895-5000    Fax: 877-516-9023

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.