Individual
WILLIAM CHARLES O'CALLAHAN JR.
Active
Sole proprietor
No
Provider details
NPI number
Gender
Man
Credential
MD
Contact information
Practice address
5 SHREWSBURY ST STE D, HOLDEN, MA 01520-1960
(508) 829-3800
(508) 829-3802
Mailing address
5 SHREWSBURY ST STE D, HOLDEN, MA 01520-1960
(508) 829-3800
(508) 829-3802
Taxonomy
Speciality
Code
Description
License number
State
207P00000X
Emergency Medicine Physician
Primary
79001
MA
Other
Enumeration date
05/31/2006
Last updated
01/21/2025
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