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

Joffre Edward Johnson, MD

Individual provider Emergency Medicine Physician · NPI 1457765547

Joffre Edward Johnson, MD practises Emergency Medicine in Round Rock, Texas. Graduated from University of Alabama School of Medicine in 2014, 12 years ago. Practices with Longhorn Emergency Medical Associates PA, a 148-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois and Texas.

Years since qualifying
12
Trained at
University of Alabama School of Medicine
Licensed in
IL, TX
In the registry since
2014
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

300 University Blvd
Round Rock, TX 78665-1032
Phone: (512) 509-0100
Fax: (512) 218-6330
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5841 S Maryland Ave, Chicago, IL 60637-1447 — (773) 702-9500

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence S0468 (TX)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 125064607 (IL)

Record details

NPI number1457765547
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 17, 2014
Last updated in NPPESSeptember 14, 2026
Certification dateSeptember 14, 2026

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF ALABAMA SCHOOL OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice Longhorn Emergency Medical Associates Pa — 148 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 patients263
Services billed 370 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.

Colleagues at Longhorn Emergency Medical Associates PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 148 clinicians in the practice; 12 are shown here.

Other providers in Round Rock