Charles P Buck, MD - Medicare Emergency Medicine in Federal Way, WA

Charles P Buck, MD is a medicare enrolled "Emergency Medicine" physician in Federal Way, Washington. He went to Georgetown University School Of Medicine and graduated in 1998 and has 26 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Kaiser Foundation Health Plan Of Washington and his current practice location is 34515 9th Ave S, St. Francis Hospital, Federal Way, Washington. You can reach out to his office (for appointments etc.) via phone at (253) 952-7971.

Charles P Buck is licensed to practice in Washington (license number MD00039232) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1831152826.

Contact Information

Charles P Buck, MD
34515 9th Ave S, St. Francis Hospital,
Federal Way, WA 98003-6761
(253) 952-7971
(253) 944-7922

Map and Direction




Physician's Profile

Full NameCharles P Buck
GenderMale
SpecialityEmergency Medicine
Experience26 Years
Location34515 9th Ave S, Federal Way, Washington
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Charles P Buck attended and graduated from Georgetown University School Of Medicine in 1998
  NPI Data:
  • NPI Number: 1831152826
  • Provider Enumeration Date: 04/10/2006
  • Last Update Date: 05/18/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 2567533946
  • Enrollment ID: I20080612000056

Medical Identifiers

Medical identifiers for Charles P Buck such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1831152826NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine MD00039232 (Washington)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Kaiser Foundation Health Plan Of Washington90320225791480

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Charles P Buck allows following entities to bill medicare on his behalf.
Entity NameKaiser Foundation Health Plan Of Washington
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1396810701
PECOS PAC ID: 9032022579
Enrollment ID: O20031112000454
Entity NameNorthwest Emergency Physicians Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235172370
PECOS PAC ID: 3476462334
Enrollment ID: O20041214000892
Entity NameNorthwest Observation Associates Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023539376
PECOS PAC ID: 9032480942
Enrollment ID: O20170810000470

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. Charles P Buck is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Charles P Buck, MD
505 S 336th St, Suite 600,
Federal Way, WA 98003-6328

Ph: (253) 838-6180
Charles P Buck, MD
34515 9th Ave S, St. Francis Hospital,
Federal Way, WA 98003-6761

Ph: (253) 952-7971

Reviews and Comments


Emergency Medicine Doctors in Federal Way, WA

Fredric T Lo, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 34515 9th Avenue South, Federal Way, WA 98003
Phone: 253-952-7971    Fax: 253-944-7922
Dr. Aaron Christopher Laird, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 505 South 336th Street, Suite 600, Northwest Emergency Physicians, Federal Way, WA 98003
Phone: 281-216-7096    
John Andrew Campbell, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 34515 9th Ave S, Federal Way, WA 98003
Phone: 253-838-9700    Fax: 253-838-6418
Lysa Susanne Ward, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 34515 9th Ave S, Federal Way, WA 98003
Phone: 253-838-9700    Fax: 253-838-6418
Richard Alan Bethke, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 505 S 336th St, Suite 600, Federal Way, WA 98003
Phone: 360-299-1300    Fax: 360-299-1312
Ms. Barbara Bond, FNP
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 33507 9th Ave S Ste A, Federal Way, WA 98003
Phone: 253-874-5404    Fax: 253-874-8964
Michelle Joy Holm, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 34515 9th Ave S, Emergency Medicine Department, Federal Way, WA 98003
Phone: 253-944-7971    

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.