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

James W. Lock, MD

Individual provider Internal Medicine Physician · NPI 1063499002

James W. Lock, MD is an Internal Medicine in Walnut Grove, Mississippi. Graduated from Meharry Medical College School of Medicine in 1989, 37 years ago. Practices with Rh Hospitalist Medicine of Jefferson Davis LLC, an 8-clinician group and accepts Medicare assignment. Licensed in Mississippi.

Years since qualifying
37
Trained at
Meharry Medical College School of Medicine
Licensed in
MS
In the registry since
2005
Specialties on file
2
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

199 Rimmer St
Walnut Grove, MS 39189-0370
Phone: (601) 253-2733
Fax: (601) 253-2733
Show map & directions

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

Specialties & licences

Hypertension Specialist Physician (primary) Taxonomy 207RH0005X · Licence 12628 (MS)
Internal Medicine Physician Taxonomy 207R00000X · Licence 12628 (MS)

Record details

NPI number1063499002
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 30, 2005
Last updated in NPPESJune 26, 2014
Mailing addressPo Box 370, Walnut Grove, MS 39189-0370

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesEMERGENCY MEDICINE
Medical schoolMEHARRY MEDICAL COLLEGE SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice Rh Hospitalist Medicine Of Jefferson Davis Llc — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare