Individual
CHRISTOPHER M CALLAHAN
Active
Sole proprietor
No
Provider details
NPI number
Gender
Man
Credential
MD
Taxonomy
Speciality
Code
Description
License number
State
207R00000X
Internal Medicine Physician
01036319A
IN
207RG0300X
Geriatric Medicine (Internal Medicine) Physician
Primary
01036319A
IN
Other
Other identifiers
Code
Description
Identifier
Issuer
State
01
—
000000086850
ANTHEM
IN
05
—
100068500
—
IN
Enumeration date
06/10/2006
Last updated
09/15/2025
Update your record
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