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

Dr. John Clyde Williams IV, MD

Individual provider Internal Medicine Physician · NPI 1841467198

Dr. John Clyde Williams IV, MD is a Pulmonary Disease in Austell, Georgia. Graduated from Louisiana State University School of Medicine in Shreveport in 2006, 20 years ago. Practices with Wellstar Medical Group LLC, a 3,072-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Alabama, Arkansas, Georgia and Louisiana.

Years since qualifying
20
Trained at
Louisiana State University School of Medicine in Shreveport
Licensed in
AL, AR, GA, LA
In the registry since
2008
Specialties on file
5
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1664 Mulkey Rd
Austell, GA 30106-1114
Phone: (770) 422-1372
Show map & directions

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

Additional practice locations (2)

  • 4500 Hospital Blvd Ste 310, Roswell, GA 30076 — (770) 410-4366
  • 309 Jackson St, Monroe, LA 71201-7407 — (318) 966-4541

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 207952 (LA)
Internal Medicine Physician Taxonomy 207R00000X · Licence E-6744 (AR)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 81809 (GA)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence MD.31678 (AL)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 81809 (GA)

Record details

NPI number1841467198
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 14, 2008
Last updated in NPPESMay 25, 2023
Certification dateMay 25, 2023

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolLOUISIANA STATE UNIVERSITY SCHOOL OF MEDICINE IN SHREVEPORT
Graduated 2006 (20 years in practice)
Group practice Wellstar Medical Group Llc — 3072 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations8 on file with Medicare

Other providers in Austell