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Individual
JOHN CALEB GRENN
Active
Individual
JOHN CALEB GRENN
Active
Sole proprietor
No
Provider details
NPI number
Gender
Man
Credential
M.D.
Taxonomy
Speciality
Code
Description
License number
State
207R00000X
Internal Medicine Physician
Primary
V9000
TX
208M00000X
Hospitalist Physician
V9000
TX
Other
Enumeration date
03/27/2017
Last updated
09/09/2025
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