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

Dr. Billy Wayne Jefferson Jr., DO

Individual provider Emergency Medicine Physician · NPI 1407423809

Dr. Billy Wayne Jefferson Jr., DO is an Emergency Medicine in Hattiesburg, Mississippi. Graduated from William Carey University College of Osteopathic Medicine in 2021, 5 years ago. Practices with Webster Emergency Group LLC, a 16-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Louisiana and Mississippi.

Years since qualifying
5
Trained at
William Carey University College of Osteopathic Medicine
Licensed in
LA, MS
In the registry since
2021
Specialties on file
2
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.

See every abbreviation used in this directory →

Practice location Address checks out

6051 U S Highway 49
Hattiesburg, MS 39401-7200
Phone: (601) 441-2975
Show map & directions

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

Additional practice locations (1)

  • 1501 Kings Hwy, Shreveport, LA 71103-4228 — (318) 626-1036

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 32525 (MS)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 337599 (LA)

Record details

NPI number1407423809
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedJune 5, 2021
Last updated in NPPESJuly 29, 2025
Certification dateJuly 29, 2025

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolWILLIAM CAREY UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2021 (5 years in practice)
Group practice Webster Emergency Group Llc — 16 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations7 on file with Medicare

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