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

Dr. John Walker McDonald Sr., MD

Individual provider Gastroenterology Physician · NPI 1386834281

Dr. John Walker McDonald Sr., MD is a Gastroenterology in Baton Rouge, Louisiana. Graduated from Louisiana State University School of Medicine in Shreveport in 2004, 22 years ago. Practices with Lsuhn Billing LLC, a 199-clinician group and accepts Medicare assignment. Licensed in Louisiana.

Years since qualifying
22
Trained at
Louisiana State University School of Medicine in Shreveport
Licensed in
LA
In the registry since
2007
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

9103 Jefferson Hwy
Baton Rouge, LA 70809-2440
Phone: (225) 927-1190
Fax: (225) 706-0160
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence MD.200458 (LA)

Record details

NPI number1386834281
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 26, 2007
Last updated in NPPESNovember 7, 2014

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolLOUISIANA STATE UNIVERSITY SCHOOL OF MEDICINE IN SHREVEPORT
Graduated 2004 (22 years in practice)
Group practice Lsuhn Billing Llc — 199 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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