Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JACOB MADDUX M.D.
NPI 1760839211
Allergy & Immunology in Peoria, AZ

Active since May 14, 2016PECOS Enrolled
8877 W UNION HILLS DR STE 200, PEORIA, AZ 85382(602) 349-0929 Get Directions Write a Review

NPPES record last updated: July 24, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 24, 2026, Jan 30, 2023, May 10, 2022 and 4 more (7 updates tracked since 2016).

About Jacob Maddux M.d. NPPES

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

JACOB MADDUX M.D. (NPI 1760839211) is an individual allergy & immunology provider in Peoria, Arizona, licensed in Arizona (55863) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2016).

NPPES Registry Identity

NPI1760839211
Entity TypeIndividualMale
Primary Taxonomy207K00000X
Provider Legal NameJACOB MADDUXCredential: M.D.
Location Address8877 W UNION HILLS DR STE 200Peoria, AZ 85382-3016
Mailing Address13400 E Shea BlvdScottsdale, AZ 85259-5452 · (480) 301-8000
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateMay 14, 2016
Last NPPES UpdateJuly 24, 20267 updates tracked since enumeration
NPPES CertifiedJuly 24, 2026
NPI 1760839211 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
License Licensed in AZ · 55863
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.
Also ListedInternal MedicineTaxonomy 207R00000X · License R75864 (AZ)
8877 W UNION HILLS DR STE 200, Peoria, AZ 85382

Secondary Practice Locations 2

Location 115331 W Bell Rd Ste 308310Surprise, AZ 85374-4102 · Phone (602) 843-2991 · Fax (602) 978-1226
Location 213400 E Shea BlvdScottsdale, AZ 85259 · Phone (480) 301-8000

Accepted Insurance

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

Jacob Maddux M.d. 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 ID547552283
PECOS Enrollment IDI20200506000289
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 8

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.
5,645 services77 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.
912 services41 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.
265 services152 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.
134 services87 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.
94 services94 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
52 services44 patients

Other Providers at the Same Location NPPES 2

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

Physical Medicine & Rehabilitation
8877 W UNION HILLS DR STE 200
PEORIA, AZ 85382
Pain Medicine (Interventional Pain Medicine)
8877 W UNION HILLS DR STE 200
PEORIA, AZ 85382

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Jacob Maddux's NPI number?

The NPI number for Jacob Maddux is 1760839211. It was assigned to this individual provider in the NPPES registry on May 14, 2016.

Where is Jacob Maddux located?

Jacob Maddux practices at 8877 W Union Hills Dr Ste 200, Peoria, AZ 85382. The listed phone number is (602) 349-0929.

What is Jacob Maddux's specialty?

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

Is Jacob Maddux enrolled in Medicare?

Yes. Jacob Maddux is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Jacob Maddux accept?

Health plans from Ambetter from Arizona Complete Health, Antidote Health Plan of Arizona, Inc., Blue Cross Blue Shield of Arizona, Imperial Insurance Companies, Inc. and Oscar Health Plan, Inc. and 1 other insurer list Jacob Maddux as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Jacob Maddux was last updated on July 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days 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.