William Howard Anderson, M.D.
Allergy & Immunology Physician · Bellingham, WA
William Howard Anderson, M.D. is an allergy & immunology physician with a practice address in Bellingham, Washington, and NPI 1629031752, issued on Apr 10, 2006. Check the license (Washington MD00031780, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- William Howard Anderson
- Credential
- M.D.
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- MD00031780 WA
Self-reported in NPPES; status is on the state search - Practice location
- 3130 Ellis St, Bellingham, WA 98225
- Phone
- (425) 339-5412
- Enumerated
- Apr 10, 2006
- Record last updated
- Jul 14, 2025
- Fax
- (360) 363-4750
- Medicaid ID
- 2069048 WA
- Medicare enrollment
- Enrolled (PECOS I20050502000310); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 90 in Washington → Look up another NPI →
Also registered at 3130 Ellis St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Milan Banjanin, MDFamily Medicine Physician1316035355
- Laurie Belknap, DOFamily Medicine Physician1205877388
- Lisa Benjamin, ARNPNurse Practitioner1518588557
- Renee Burnett, ARNPNurse Practitioner1932298965
- Erica Dascher, PAPhysician Assistant1578651568
- Nancy Fong, FNPFamily Nurse Practitioner1700945649
Verify William Howard Anderson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00031780Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
514 Medicare Part D claims for 121 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Montelukast Sodium52 claims
- Prednisone50 claims
- Albuterol Sulfate Hfa44 claims
- Fluticasone-Salmeterol38 claims
- Symbicort37 claims
- Fluticasone Propionate32 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Optum Care Washington PLLCBellingham, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Howard Anderson among 90 allergy & immunology physician records in Washington
William Howard Anderson, M.D. is one of 90 allergy & immunology physician records with a practice address in Washington. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 40% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated1988 · median 2002 among the 46 with a school on file
- Record last updated2025 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in Washington
There are 90 allergy & immunology physician records in Washington.
All 90 in Washington → Every provider in Bellingham → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Andrew Ayars, MDBellingham, WA 982251336286608
- David Elkayam, MDBellingham, WA 982251871589234
- Sally Newbrough, M.D.Bellingham, WA 982251245409531
- Maryanne Scott, M.D.Bellingham, WA 982261699764928
- James Bommarito, MDEverett, WA 982011447215967
- August Jillian Generoso, M.D.Everett, WA 982011912311150
- Michael Kennedy, M.D.Everett, WA 982011740224658
- Paul McBride, MDEverett, WA 982011609831882
Common questions
What is William Howard Anderson, M.D.'s NPI number?
William Howard Anderson, M.D.'s National Provider Identifier (NPI) is 1629031752, issued on Apr 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Howard Anderson, M.D. located?
The NPPES record lists a practice address at 3130 Ellis St, Bellingham, WA, 98225. Phone: (425) 339-5412. Providers update this record themselves, so call before visiting.
How can I verify William Howard Anderson, M.D.'s license?
NPPES lists Washington license number MD00031780, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Howard Anderson, M.D. prescribe under Medicare Part D?
In 2024, William Howard Anderson, M.D. had 514 Medicare Part D claims for 121 beneficiaries; the average among allergy & immunology physician prescribers was 741. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.