Individual
JOHN MATTHEW GRISHAM
Active
Individual
JOHN MATTHEW GRISHAM
Active
Sole proprietor
No
Provider details
NPI number
Gender
Man
Credential
MD
Taxonomy
Speciality
Code
Description
License number
State
207ZC0008X
Clinical Informatics (Pathology) Physician
35.142352
OH
2080P0206X
Pediatric Gastroenterology Physician
Primary
35.142352
OH
Other
Other identifiers
Code
Description
Identifier
Issuer
State
05
—
0312077
—
OH
01
—
H0025540
CGS
OH
Enumeration date
04/04/2018
Last updated
06/11/2026
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