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

John C Leatherman, MD

Individual provider Internal Medicine Physician · NPI 1295779460

John C Leatherman, MD is an Internal Medicine Physician in Ramona, Oklahoma. Licensed in Oklahoma. Registered with an NPI since 2006.

Licensed in
OK
In the registry since
2006
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

400 Wyandotte Pl
Ramona, OK 74061-3678
Phone: (918) 287-1310
Fax: (918) 287-1727
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 17649 (OK)
Internal Medicine Physician Taxonomy 207R00000X · Licence 17649 (OK)

Record details

NPI number1295779460
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 16, 2006
Last updated in NPPESMarch 6, 2020
Certification dateMarch 6, 2020