Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Jason Matthew Maddox

Individual provider Family Medicine Physician · NPI 1306414552

Jason Matthew Maddox is registered under Family Practice in Saint Louis, Missouri. Graduated from Arizona College of Osteopathic Medicine Mid Western University in 2021, 5 years ago. Practices with Mercy Clinic East Communities, a 573-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Missouri.

Years since qualifying
5
Trained at
Arizona College of Osteopathic Medicine Mid Western University
Licensed in
MO
In the registry since
2021
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Practice location Address checks out

12680 Olive Blvd Ste 300
Saint Louis, MO 63141-6322
Phone: (314) 251-8888
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 2021021904 (MO)

Record details

NPI number1306414552
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedJune 15, 2021
Last updated in NPPESJuly 24, 2024
Certification dateJuly 24, 2024

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolARIZONA COLLEGE OF OSTEOPATHIC MEDICINE MID WESTERN UNIVERSITY
Graduated 2021 (5 years in practice)
Group practice Mercy Clinic East Communities — 573 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients60
Services billed 140 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mercy Clinic East Communities

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 573 clinicians in the practice; 12 are shown here.

Other providers in Saint Louis