DR. WILLIAM HOWARD ANDERSON M.D.
NPI 1629031752
Allergy & Immunology in Bellingham, WA

Q: What is William Anderson's NPI number?

The NPI number for William Anderson is 1629031752. It was assigned to this individual provider in the NPPES registry on April 10, 2006.

Q: What is William Anderson's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Q: When was this NPI record last updated?

The NPPES record for William Anderson was last updated on July 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 10, 2006PECOS Enrolled

3130 ELLIS ST, BELLINGHAM, WA 98225(425) 339-5412(360) 363-4750 Get Directions Write a Review

NPPES record last updated: July 14, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Dr. William Howard Anderson M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM HOWARD ANDERSON M.D. (NPI 1629031752) is an individual allergy & immunology provider in Bellingham, Washington, licensed in Washington (MD00031780) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1629031752

Entity TypeIndividualMale

Primary Taxonomy207K00000X

Provider Legal NameDR. WILLIAM HOWARD ANDERSONCredential: M.D.

Location Address3130 ELLIS STBellingham, WA 98225-1904

Mailing AddressPo Box 5127Everett, WA 98206-5127 · (206) 860-5414 · Fax (206) 720-8462

Phone(425) 339-5412

Fax(360) 363-4750

Sole ProprietorNo

Enumeration DateApril 10, 2006

Last NPPES UpdateJuly 14, 2025

NPPES CertifiedJuly 14, 2025

✔ NPI 1629031752 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

License✔ Licensed in WA · MD00031780

Definition

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

3130 ELLIS ST, Bellingham, WA 98225

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Secondary Practice Locations 2

Location 14545 Cordata Pkwy Ste 1CBellingham, WA 98226 · Phone (360) 738-2200 · Fax (360) 752-5689

Location 29709 3rd Ave NESeattle, WA 98115-2062 · Phone (206) 329-1760

Other Identifiers 1

Medicaid2069048WA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. William Howard Anderson M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show William Anderson reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Peacehealth

0.1 mi

Internal Medicine

2901 SQUALICUM PKWY
Bellingham, WA 98225

Reassigned Medicare billing, Washington enrollment
390 clinicians in this Medicare group

NPI 1356309553 (360) 734-5400

Peacehealth Medical Group - Sedro Woolley

21 mi

Family Medicine

1990 HOSPITAL DR
Sedro Woolley, WA 98284

Reassigned Medicare billing, Washington enrollment
106 clinicians in this Medicare group

NPI 1407283179 (360) 856-8810

Optum Care Washington PLLC

45 mi

Ambulatory Surgical

4011 172ND ST NE
Arlington, WA 98223

Reassigned Medicare billing, Washington enrollment
1,285 clinicians in this Medicare group

NPI 1366154304 (360) 454-1900

The Polyclinic PLLC

80 mi

Audiologist

1145 BROADWAY
Seattle, WA 98122

Reassigned Medicare billing, Washington enrollment
911 clinicians in this Medicare group

NPI 1174594634 (206) 329-1760

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Test for allergy using allergenic extract 95004

An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.

274 services20 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

76 services45 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

61 services61 patients

Gammaglobulin (immune system protein) measurement 82784

Gammaglobulin measurement is a blood test that checks the levels of certain proteins (gammaglobulins) that the body uses to fight infections. High or low levels can indicate various health conditions. It's a simple, quick procedure with minimal discomfort.

41 services12 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

23 services17 patients

Test to measure rate of airflow 94375

This test, known as spirometry, measures how much air you can breathe in and out, and how quickly you can do so. It helps assess your lung function and can be used to diagnose or monitor conditions like asthma or COPD.

18 services15 patients

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme J7620

DME-Drugs Administered Through DME · category DG006N

2 suppliers13 claims1,290 services$0.09 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

3 suppliers12 claims12 services$26.07 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JASPREET S KHEHRA ARNP

Nurse Practitioner (Family)