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

Mark A. Walker, MD

Individual provider Internal Medicine Physician · NPI 1538196662

Mark A. Walker, MD is an Internal Medicine Physician in Gallipolis, Ohio. Licensed in Ohio and West Virginia. Registered with an NPI since 2006.

Licensed in
OH, WV
In the registry since
2006
Specialties on file
4
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

90 Jackson Pike
Gallipolis, OH 45631-1560
Phone: (740) 446-5131
Fax: (740) 446-5486
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 35-04-7305 (OH)
Internal Medicine Physician Taxonomy 207R00000X · Licence 15377 (WV)
Medical Oncology Physician Taxonomy 207RX0202X · Licence 35-04-7305 (OH)
Medical Oncology Physician Taxonomy 207RX0202X · Licence 15377 (WV)

Record details

NPI number1538196662
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 26, 2006
Last updated in NPPESMarch 5, 2011
Mailing address90 Jackson Pike, Gallipolis, OH 45631-1560

Other providers in Gallipolis