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

Dr. John J Dubois, DO

Individual provider Internal Medicine Physician · NPI 1538264205

Dr. John J Dubois, DO practises Internal Medicine in Eureka, Missouri. Graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1999, 27 years ago. Practices with Mercy Clinic East Communities, a 573-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Missouri.

Years since qualifying
27
Trained at
At Still University of Health Sciences, College of Osteo Med, Kirksville
Licensed in
MO
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

20 The Legends Pkwy
Eureka, MO 63025-3801 Not confirmed with CMS for 12 years — call before visiting
Phone: (636) 549-0121
Fax: (636) 549-0122
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 2002004657 (MO)

Record details

NPI number1538264205
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedSeptember 14, 2006
Last updated in NPPESJanuary 7, 2014

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolAT STILL UNIVERSITY OF HEALTH SCIENCES, COLLEGE OF OSTEO MED, KIRKSVILLE
Graduated 1999 (27 years in practice)
Group practice Mercy Clinic East Communities — 573 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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 patients295
Services billed 1,080 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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. Those with a page here are linked.

  • Mercy Hospital Jefferson Hospital · Crystal City, MO
  • Mercy Hospital South Hospital · Saint Louis, MO
  • Mercy Hospital St Louis Hospital · Saint Louis, MO · listed as Mercy Hospitals East Communities Mercy Hospital St Louis
  • Mercy Hospital Washington Hospital · Washington, MO
  • Mercy Home Health Home health agency · Saint Louis, MO
  • Mercy Hospice Hospice · Saint Louis, MO

Also affiliated with 1 inpatient rehabilitation facility, which CMS identifies by certification number only.

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 Eureka