DR. WILLIAM G HARRIS MD
NPI 1922065788
Allergy & Immunology in Orange, CA

Q: What is William Harris's NPI number?

The NPI number for William Harris is 1922065788. It was assigned to this individual provider in the NPPES registry on April 27, 2006.

Q: What is William Harris'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 Harris was last updated on December 14, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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 27, 2006PECOS EnrolledAccepts Medicare Assignment

1140 W LA VETA AVE STE 850, ORANGE, CA 92868(714) 771-7994(714) 744-4167 Get Directions Write a Review

NPPES record last updated: December 14, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Dec 14, 2023, Oct 17, 2023, Jul 11, 2023 and 3 more (6 updates tracked since 2015).

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About Dr. William G Harris Md NPPES

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

DR. WILLIAM G HARRIS MD (NPI 1922065788) is an individual allergy & immunology provider in Orange, California, licensed in California (G64493) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1987).

NPPES Registry Identity

NPI1922065788

Entity TypeIndividualMale

Primary Taxonomy207K00000X

Provider Legal NameDR. WILLIAM G HARRISCredential: MD

Location Address1140 W LA VETA AVE STE 850Orange, CA 92868-4218

Mailing AddressPo Box 603725Charlotte, NC 28260-3725 · (828) 575-2625 · Fax (828) 350-2174

Phone(714) 771-7994

Fax(714) 744-4167

Sole ProprietorNo

Medical School CMSOtherGraduated 1987

Enumeration DateApril 27, 2006

Last NPPES UpdateDecember 14, 20236 updates tracked since enumeration

NPPES CertifiedDecember 14, 2023

✔ NPI 1922065788 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

License✔ Licensed in CA · G64493

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.

1140 W LA VETA AVE STE 850, Orange, CA 92868

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Other Identifiers 2

OtherCB221252CA · Medicare Ptan

Medicaid00G64493CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. William G Harris Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6103812771

PECOS Enrollment IDI20040421000651

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.

Areas of Expertise CMS Part B claims 6

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.

Professional service for preparation and provision of 1 or more antigens 95165

This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.

1,044 services37 patients

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.

785 services12 patients

Professional service for multiple injections of allergen 95117

The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.

290 services32 patients

Test for allergy using allergenic extract injected into skin 95024

An allergy skin test involves injecting a small amount of allergenic extract into your skin. This test helps determine if you're allergic to specific substances. If allergic, a small red bump appears at the test site. It's safe and quick.

143 services11 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.

41 services36 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.

25 services25 patients

Other Providers at the Same Location NPPES 6

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

DR. DOUGLAS ALBERT BROWNELL MD

Surgery (Vascular Surgery)