Dr William Howard Anderson, MD - Medicare Allergy/immunology in Bellingham, WA

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Dr William Howard Anderson, MD is a medicare enrolled "Allergy & Immunology" physician in Bellingham, Washington. He went to Oregon Health Sciences University School Of Medicine and graduated in 1988 and has 36 years of diverse experience with area of expertise as Allergy/immunology. He is a member of the group practice Optum Care Washington Pllc and his current practice location is 3130 Ellis St, Bellingham, Washington. You can reach out to his office (for appointments etc.) via phone at (425) 339-5412.

Dr William Howard Anderson is licensed to practice in Washington (license number MD00031780) 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 1629031752.

Contact Information

Dr William Howard Anderson, MD
3130 Ellis St,
Bellingham, WA 98225-1904
(425) 339-5412
(360) 363-4750

Map and Direction




Physician's Profile

Full NameDr William Howard Anderson
GenderMale
SpecialityAllergy/immunology
Experience36 Years
Location3130 Ellis St, Bellingham, 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:
  • Dr William Howard Anderson attended and graduated from Oregon Health Sciences University School Of Medicine in 1988
  NPI Data:
  • NPI Number: 1629031752
  • Provider Enumeration Date: 04/10/2006
  • Last Update Date: 10/23/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 1951340421
  • Enrollment ID: I20050502000310

Medical Identifiers

Medical identifiers for Dr William Howard Anderson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1629031752NPI-NPPES
2069048MedicaidWA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207K00000XAllergy & Immunology MD00031780 (Washington)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Optum Care Washington Pllc6406752153559

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. Dr William Howard Anderson allows following entities to bill medicare on his behalf.
Entity NamePeacehealth
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356309553
PECOS PAC ID: 9537073960
Enrollment ID: O20031118001062
Entity NameThe Polyclinic
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174594634
PECOS PAC ID: 2163328196
Enrollment ID: O20031210000788
Entity NameOptum Care Washington Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831186766
PECOS PAC ID: 6406752153
Enrollment ID: O20031211000922
Entity NamePeacehealth Medical Group - Sedro Woolley
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1407283179
PECOS PAC ID: 1456584036
Enrollment ID: O20140506001293

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. Dr William Howard Anderson 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
Dr William Howard Anderson, MD
Po Box 5127,
Everett, WA 98206-5127

Ph: (425) 304-8431		Dr William Howard Anderson, MD
3130 Ellis St,
Bellingham, WA 98225-1904

Ph: (425) 339-5412

Reviews and Comments


Allergy & Immunology Doctors in Bellingham, WA

Maryanne B. Scott, M.D.
Allergy & Immunology
Medicare: Not Enrolled in Medicare
Practice Location: 4545 Cordata Pkwy, Bellingham, WA 98226
Phone: 360-738-2200    Fax: 360-752-5690
Dr. David Elkayam, MD
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 3015 Squalicum Pkwy, Suite #180, Bellingham, WA 98225
Phone: 360-733-5733    Fax: 360-733-1859

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.