Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Jacob Maddux, MD

Individual provider Allergy & Immunology Physician · NPI 1760839211

Jacob Maddux, MD practises Allergy/Immunology in Peoria, Arizona. Qualified in 2016, 10 years ago. Practices with Arizona Asthma Allergy Legacy PLC, a 17-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
10
Licensed in
AZ
In the registry since
2016
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

8877 W Union Hills Dr Ste 200
Peoria, AZ 85382-3016
Phone: (602) 349-0929
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 13400 E Shea Blvd, Scottsdale, AZ 85259 — (480) 301-8000
  • 15331 W Bell Rd Ste 308310, Surprise, AZ 85374-4102 — (602) 843-2991

Specialties & licences

Allergy & Immunology Physician (primary) Taxonomy 207K00000X · Licence 55863 (AZ)
Internal Medicine Physician Taxonomy 207R00000X · Licence R75864 (AZ)

Record details

NPI number1760839211
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 14, 2016
Last updated in NPPESJuly 24, 2026
Certification dateJuly 24, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyALLERGY/IMMUNOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Arizona Asthma Allergy Legacy Plc — 17 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients243
Services billed 14,427 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $28,290 15 payments
Food and Beverage $4,749 184 payments · a meal or drink at a meeting or visit, not a fee
Consulting Fee $1,562 7 payments
Travel and Lodging $710 1 payment · travel or lodging paid or reimbursed, such as to attend a conference
Education $85 1 payment · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at Arizona Asthma Allergy Legacy PLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 17 clinicians in the practice; 12 are shown here.

Other providers in Peoria